Newswise — In a study published in Bioresource Technology Journal, scientists from the universities of Portsmouth and Manchester report that a specially engineered enzyme can significantly speed up the breakdown of PET – the plastic used in water bottles, food packaging and polyester clothing – when it is processed at high concentrations similar to those used in industry. 

PET, short for poly (ethylene terephthalate), is cheap, durable, and widely used. But those same qualities mean it builds up in vast quantities once thrown away. 

Polyester textiles are notoriously difficult to recycle. Their fibres are tightly packed and highly ordered into a structure created during manufacturing, which makes them resistant to biological breakdown. 

Enzymes are natural proteins that can speed up chemical reactions. The team combined two different components into one fusion enzyme. The first was a heat-tolerant cutinase; a natural enzyme that normally breaks down a protective polyester found on plant surfaces called cutin. The second was a binding module designed to help the enzyme to attach more tightly to plastic. 

The two components were carefully matched, so they work best at the same temperature and are suited to the same kinds of plastic structure. The aim was to make the enzyme stick to PET and ensure it could continue breaking it down efficiently under realistic recycling conditions. 

While the modified enzyme did attach more strongly to highly crystalline PET – the tough, tightly packed form found in many plastics – did not automatically lead to faster breakdown. In fact, when the plastic structure remained highly ordered, there was limited gain. 

The real progress came when the plastic was less crystalline and as a result more accessible to the enzyme. Under controlled conditions that mimic industrial recycling – including carefully managed pH and plastic concentrations of 20 per cent by weight – the fused enzyme broke down less-ordered PET much more quickly. 

The biggest improvement was seen in a pre-consumer polyester textile that had been specially treated to make it less crystalline and finely ground. In that case, the amount of useful breakdown products doubled. 

“By matching the enzyme with the right binding module and preparing the plastic in the right way, we can overcome a major bottleneck in plastic recycling,” said Professor Andrew Pickford, Director of the University of Portsmouth’s Centre for Enzyme Innovation (CEI). “This isn’t just about helping the enzyme stick to the surface – it’s about making sure the chemical reaction can run efficiently at the high plastic concentrations used in industry.” 

The findings also help explain why earlier studies of similar enzyme combinations have produced mixed results. If an enzyme binds too tightly to the surface, it can slow the reaction – a well-established concept in chemistry known as the Sabatier principle. 

The study suggests that enzyme-based recycling of PET – a promising but technically challenging solution – could become more practical at scale but success, depends on getting three factors right: the enzyme, any helper module that guides it to the plastic, and the structure of the material itself. 

BYLINE: Tina M. Johnson

Newswise — Gevo, an advanced biofuels company based in Colorado, has licensed two patented catalyst technologies from the U.S. Department of Energy’s (DOE) Oak Ridge National Laboratory (ORNL) for use in the production of sustainable aviation fuel (SAF).

“This partnership will streamline the transition of ORNL’s catalyst technologies from lab scale to pilot-scale reactors,” said Andrew Sutton, senior scientist in the Manufacturing Science Division at ORNL. “By demonstrating industrial viability, our goal is to accelerate the commercialization of this technology in the U.S., boosting global competitiveness and domestic production of aviation fuel.”

SAF is an alternative fuel made from plant- or waste-based feedstocks. The International Air Transport Association, representing more than 80% of global air traffic, is interested in SAF. Many air carriers have agreed to buy the fuel at scale, but production efficiencies remain an issue.

To meet the challenge, researchers at ORNL developed catalysts that enable a single-step conversion of ethanol to olefins (ETO), which can then be used to produce SAF. A catalyst accelerates chemical reactions and enhances the efficiency of the fuel production process.

In addition to SAF, olefins serve as key building blocks for a wide range of products, including plastics, solvents and surfactants. The global plastics market is poised for continued growth, with forecasts predicting a market worth more than $1.3 trillion by 2033.

Ethanol, commonly derived from agricultural or cellulosic feedstocks, often serves as the basis for SAF production through its conversion to olefins — key intermediates that simplify and reduce the cost of large-scale fuel manufacturing. Building on this foundation, ORNL’s novel conversion process not only achieves high carbon efficiency but does so at equal or lower cost compared with conventional methods.

Through the DOE Technology Commercialization Fund, the partnership was awarded support for a three-year cooperative research and development agreement (CRADA) to advance this technology for pilot-scale operation and industrial commercialization. Gevo will guide the overall process model and provide industry know-how for successful implementation in the company’s pilot reactor.

“Gevo’s collaboration with Oak Ridge National Laboratory focuses on evaluating a novel catalytic process that converts ethanol into valuable fuel precursors and alternative chemicals like butadiene,” said Andrew Ingram, Gevo’s director of process chemistry and catalysis. “This work complements our broader ethanol conversion portfolio but is distinct from both our commercial deployment of Axens’ alcohol-to-jet process and our next-generation ETO platform. If the economics prove out, this pathway could provide a flexible, cost-effective option to scale U.S. bio-based solutions, driven by American innovation that creates new markets and demand for farmers producing feedstocks for energy and materials.”

ORNL provides extensive scale-up expertise, employing advanced characterization capabilities at the Center for Nanophase Materials Sciences, which was used to provide deeper insight into catalytic processes in larger chemical reactors.

Under the CRADA, ORNL will develop catalyst pellets and test their performance in an advanced chemical reactor. Researchers will develop a computational model based on the testing data generated that can accurately predict how the process will behave at scale to clear the way for industrial use. 

Global demand for jet fuel is expected to increase from 106 billion gallons in 2019 to 230 billion gallons by 2050. Expanding SAF use could help the aviation industry meet this demand while advancing U.S. energy independence and security.

This project was supported by DOE’s Alternative Fuels and Feedstocks Office, formerly known as the Bioenergy Technologies Office, through the Chemical Catalysis for Bioenergy (ChemCatBio), a multi-laboratory consortium focused on accelerating the development of catalytic technologies that convert biomass and waste resources into bio-based fuels and chemicals. Initial program funding was provided by ORNL Laboratory Directed Research and Development and Technology Innovation programs.

In addition to Sutton, Stephen Purdy, Meijun Li, Michael Cordon and Hunter Jacobs are currently contributing to the CRADA project. Inventors of the patented technologies include ORNL’s Li and Brian Davison, former ORNL researcher Zhenglong Li and the University of Maryland’s Junyan Zhang. Jennifer Caldwell within Technology Transfer at ORNL negotiated the terms of the licensing agreement. Browse available chemical technologies for licensing.

UT-Battelle manages ORNL for DOE’s Office of Science, the single largest supporter of basic research in the physical sciences in the United States. The Office of Science is working to address some of the most pressing challenges of our time. For more information, please visit https://energy.gov/science. — Tina M. Johnson

Newswise — Marine mud is generated in large quantities during dredging, coastal development, land reclamation, and marine construction. In fast-growing urban regions, this sediment can become a major waste-management burden because it is wet, sticky, difficult to handle, and often contaminated with heavy metals. Conventional stabilization methods usually rely heavily on Portland cement, which is effective but energy-intensive and carbon-heavy. Alternative geopolymer approaches are promising, yet many still depend on corrosive or costly activators and do not always immobilize contaminants well enough. Based on these challenges, there is a pressing need to carry out in-depth research on low-carbon, practical, and safe strategies for the remediation and in-situ reuse of contaminated marine mud.

A team from Harbin Institute of Technology, Tsinghua University Shenzhen International Graduate School, the University of Abomey-Calavi, and the Beninese Office for Geological and Mining Research reported (DOI: 10.1007/s11783-026-2122-z) online on January 10, 2026, in  ENGINEERING Environment that contaminated marine mud can be remediated and recycled in situ into engineered backfill materials using low-carbon formulations built around aluminosilicate raw materials.

To build a treatment route that was both effective and realistic, the researchers designed the work in stages. They collected marine mud from a construction site in Macao, then tested blends containing Portland cement, fly ash, slag, river sand, water, and low-concentration NaOH. The goal was not simply to harden the mud, but to find a mix that could improve strength, suppress heavy-metal release, and remain practical for large-scale site use. After preparing and curing the samples, the team evaluated compressive strength, unconfined compressive strength, leaching toxicity, and microstructural characteristics through XRF, XRD, SEM, and TEM analyses. The strongest optimized mixtures achieved unconfined compressive strengths (UCS) values of 7.75 MPa with 25% OPC, 4.24 MPa with fly ash, 8.69 MPa with slag, and 3.15 MPa with a river-sand formulation—each above the 1 MPa benchmark for backfill application. At the same time, the treatment sharply reduced the leaching of As, Ba, Cd, Cr, and Pb, with Pb completely removed in all mixtures. XRD and morphological analyses further showed that the stabilized mud developed mineral and gel phases dominated by SiO₂, Ca(CO₃), Mn_1.7Fe₁.₃O₄, and complex silicate structures, which helped explain the improved strength and contaminant immobilization.

“This work shows that contaminated marine mud does not have to remain an environmental liability,” the study suggests in essence. By replacing more carbon-intensive treatment approaches with lower-carbon mineral formulations, the research reframes marine sediment as a reusable resource rather than a disposal problem. Just as importantly, the team designed the system with real construction conditions in mind, including the use of locally available river sand and simplified activation chemistry. That practical orientation makes the study especially valuable for coastal cities facing both land scarcity and mounting waste-treatment costs.

The implications extend beyond one sediment stream. This research offers a route toward cleaner coastal engineering, lower landfill dependence, and more circular use of waste materials in infrastructure projects. For regions where marine mud accounts for a large share of construction waste, in-situ recycling could ease pressure on disposal sites while cutting transport and treatment expenses. The study also aligns with wider carbon-reduction goals by reducing reliance on traditional cement-heavy stabilization. In the longer term, such low-carbon remediation systems could help cities manage contaminated sediments more safely while turning them into useful materials for backfilling, site restoration, and future sustainable construction applications.

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References

DOI

10.1007/s11783-026-2122-z

Original Source URL

https://doi.org/10.1007/s11783-026-2122-z

Funding Information

This work was supported by Guangdong Basic and Applied Basic Research Foundation, China (No. 2022B1515130006). Acknowledgements are also given to Shenzhen Science and Technology Program: Sustainable Development Special Project (No.KCXST20221021111408021) and International Collaboration Project (No. GJHZ20220913143007013).

About  ENGINEERING Environment 

ENGINEERING Environment  is an international journal in environmental disciplines, jointly sponsored by the Chinese Academy of Engineering, Tsinghua University, and Higher Education Press. The journal is dedicated to advancing and disseminating the discoveries of cutting-edge theories, innovations in engineering technology, and practices in technological application within the environmental discipline. Adhering to the principle of integrating scientific theories with engineering technologies, the journal emphasizes the convergence of environmental protection with One Health, climate change response, and sustainable development. It places particular emphasis on the forward-looking nature of novel technologies and emerging challenges, the practicality of solutions, and interdisciplinary innovations.

Newswise — Korea Research Institute of Chemical Technology (KRICT, President Young-Kuk Lee) announced that it has officially launched a research equipment training program for Uzbekistan researchers under a grant aid project supported by the Korea International Cooperation Agency (KOICA). The opening ceremony was held on February 23 at KRICT’s Didimdol Plaza, marking the start of the full-scale capacity-building program.

The ceremony formally introduced the “Research Equipment Invitational Training” program, a core component of the “Establishment and Capacity-Building Project of The Center of Chemical Technology in Uzbekistan.” Approximately 30 participants attended the event, including representatives from KRICT and KOICA project members, as well as Uzbek researchers in the field of chemistry. Participants shared the background and operational plans of the program and reaffirmed their commitment to close cooperation for its successful implementation.

The training program is a key human resource development initiative under the same capacity-building project. From February 22 to May 22, 2026, a total of 20 Uzbek researchers in the chemical field will participate in an intensive three-month training program in Korea.

The program aims to systematically cultivate core professionals with expertise in research equipment operation and analytical capabilities, enabling the future Uzbekistan Chemical Research Institute—The Center of Chemical Technology in Uzbekistan (UzCCT), currently being established by the Uzbek government—to operate independently and sustainably.

This project follows up on a request agreed upon by the leaders of Korea and Uzbekistan during President Shavkat Mirziyoyev’s visit to Korea in November 2017 to establish a chemical R&D center in Uzbekistan. The Uzbek government officially requested support for setting up a national chemical research institute modeled after Korea’s government-funded research institutes. In response, the Ministry of Science and ICT and KOICA have collaborated to advance this initiative.

Notably, this is the first blended financing project in Korea’s science and technology diplomacy history, combining concessional loans from the Export-Import Bank of Korea’s Economic Development Cooperation Fund (EDCF) with KOICA’s grant aid. The total project budget amounts to USD 47 million. Of this, USD 40 million in loans will support construction and equipment installation, while USD 7 million in grant funding will be allocated to master planning, human resource development, and joint research activities.

At the opening ceremony, officials underscored that this training program — backed by KOICA’s grant aid — extends well beyond technical instruction. It represents a strategic human resource development initiative aimed at strengthening UzCCT’s independent operational capacity and advancing its research and development capabilities.

The training curriculum integrates theoretical instruction with hands-on practice. It focuses on understanding equipment principles, field application in research environments, data interpretation, and ensuring the reliability of analytical results. Through this practice-oriented approach, participants will be equipped to independently operate research equipment and conduct analytical work at UzCCT upon completion of the program.

The invitational training program is regarded as a sustainable model for strengthening human capacity through KOICA’s grant assistance. It is expected to provide a foundation for UzCCT not only to enhance Uzbekistan’s chemical industry competitiveness but also to grow into a regional hub for chemical and materials R&D cooperation in Central Asia.

KRICT President Young-Kuk Lee stated, “This opening ceremony marks a starting point for Uzbekistan to build self-reliant chemical R&D capabilities through KOICA’s grant aid. Even after the training concludes, we will continue to expand bilateral cooperation through joint research and follow-up human resource development programs.”

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KRICT is a non-profit research institute funded by the Korean government. Since its foundation in 1976, KRICT has played a leading role in advancing national chemical technologies in the fields of chemistry, material science, environmental science, and chemical engineering. Now, KRICT is moving forward to become a globally leading research institute tackling the most challenging issues in the field of Chemistry and Engineering and will continue to fulfill its role in developing chemical technologies that benefit the entire world and contribute to maintaining a healthy planet. More detailed information on KRICT can be found at

Newswise — As renewable energy deployment accelerates worldwide, large-scale energy storage technologies must become more affordable, safer, and resource-efficient. Sodium-ion batteries stand out because sodium is abundant and inexpensive, yet their commercialization is hindered by the lack of high-performance anode materials. Hard carbon is widely regarded as the most promising anode candidate, but its performance strongly depends on poorly controlled internal pores and defect structures. Excessive open pores often trigger electrolyte decomposition, unstable interfacial layers, and severe initial capacity loss. Based on these challenges, it is necessary to conduct in-depth research on how molecular-level precursor design and interfacial regulation can jointly enhance hard carbon anodes.

Researchers from Jiangxi Normal University and Gannan Normal University report a new strategy to stabilize hard carbon anodes for sodium-ion batteries, published (DOI: 10.1007/s10118-025-3461-0) online on November 19, 2025, in Chinese Journal of Polymer Science. The study introduces intramolecular heteroatom doping within polymer precursors, followed by controlled chemical presodiation, to engineer closed-pore structures and robust interfacial layers. This synergistic design significantly improves reversible capacity, initial Coulombic efficiency, and long-term cycling stability, addressing key bottlenecks that have constrained sodium-ion battery development.

The research begins by designing polymer precursors with specific functional groups—such as sulfonyl, ether, and carbonyl units—embedded directly within aromatic backbones. During carbonization, these intramolecular dopants decompose in a controlled manner, generating abundant closed nanopores while avoiding excessive surface area. Structural analyses, including X-ray diffraction, Raman spectroscopy, and small-angle X-ray scattering, reveal that the optimized hard carbon contains a high volume of closed pores that favor low-voltage sodium storage.

Electrochemical tests demonstrate that the optimized material delivers a reversible capacity of 307.9 mAh g⁻¹, with strong rate capability and minimal structural degradation. However, the researchers identified that irreversible sodium loss during initial cycling still limited practical efficiency. To address this, a brief chemical presodiation step was introduced, supplying sodium in advance and pre-forming a stable interfacial layer. As a result, the initial Coulombic efficiency increased dramatically to 94.4%.

Long-term tests further show that the presodiated hard carbon retains 93.6% of its capacity after 3,000 charge–discharge cycles. Microscopic and spectroscopic analyses confirm the formation of a thin, dense, and sodium-fluoride-rich interphase, which enhances ion transport while suppressing electrolyte decomposition.

“This work shows that the performance limits of hard carbon are not fixed but can be fundamentally reshaped through molecular design,” said one of the study’s corresponding authors. “By controlling how heteroatoms are incorporated within polymer precursors, we can regulate pore formation from the inside out. When combined with presodiation, this strategy not only boosts efficiency but also stabilizes the electrode–electrolyte interface over thousands of cycles. The results suggest a scalable and versatile route for building next-generation sodium-ion battery anodes.”

The findings offer important implications for the future of large-scale energy storage, particularly in grid applications where cost, safety, and durability are critical. The molecular-level engineering strategy demonstrated in this study can be extended to other polymer-derived carbons and potentially adapted for potassium-ion or multivalent battery systems. By simultaneously improving capacity, efficiency, and lifespan, the approach brings sodium-ion batteries closer to commercial viability. More broadly, the work highlights how precursor chemistry and interfacial control can be integrated to overcome long-standing materials challenges in electrochemical energy storage.

###

References

DOI

10.1007/s10118-025-3461-0

Original Source URL

https://doi.org/10.1007/s10118-025-3461-0

Funding information

This work was financially supported by the Ministry of Industry and Information Technology of China, the National Natural Science Foundation of China (No. 52403263), Technology Research Project of Jiangxi Provincial Department of Education (No. GJJ2200385), and Jiangxi Provincial Natural Science Foundation (Nos. 20244BCE52213, 20242BAB23031 and 20232BAB204006).

About Chinese Journal of Polymer Science

Chinese Journal of Polymer Science is a monthly journal published in English and sponsored by the Chinese Chemical Society and the Institute of Chemistry, Chinese Academy of Sciences. CJPS is edited by a distinguished Editorial Board headed by Professor Qi-Feng Zhou and supported by an International Advisory Board in which many famous active polymer scientists all over the world are included. Manuscript types include Editorials, Rapid Communications, Perspectives, Tutorials, Feature Articles, Reviews and Research Articles. According to the Journal Citation Reports, 2024 Impact Factor (IF) of CJPS is 4.0.

Newswise — Green hydrogen production technology, which utilizes renewable energy to produce eco-friendly hydrogen without carbon emissions, is gaining attention as a core technology for addressing global warming. Green hydrogen is produced through electrolysis, a process that separates hydrogen and oxygen by applying electrical energy to water, requiring low-cost, high-efficiency, high-performance catalysts.

The Korea Institute of Science and Technology (KIST, President Oh Sang-rok) announced that a research team led by Dr. Na Jongbeom and Dr. Kim Jong Min from the Center for Extreme Materials Research has developed next-generation water electrolysis catalyst technology. This technology integrates a single-atom ‘All-in-one’ catalyst precisely controlled down to the atomic level with binder-free electrode technology. A key feature of this technology is its ability to stably perform both hydrogen evolution and oxygen evolution reactions simultaneously on a single electrode.

Existing electrolysis systems had limitations requiring different catalysts and electrode structures for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), necessitating the use of large quantities of expensive precious metals. Additionally, the binder used to fix the catalyst to the electrode posed problems, including reduced electrical conductivity and catalyst detachment during long-term operation.

KIST researchers utilized atomic-level precision control technology to uniformly disperse iridium (Ir) atoms across the surface of a manganese (Mn)-nickel (Ni)-based layered double hydroxide (LDH) support incorporating phytic acid. This strategy replaced the conventional use of bulk iridium precious metal. By maximizing the number of active sites for water-splitting reactions with minimal iridium, this approach is analogous to evenly spreading fine grains of sand over a large surface rather than relying on a single large rock.

In particular, the iridium single atom acts as a direct active site for the hydrogen evolution reaction through its strong interaction with the support, while simultaneously enhancing the catalytic performance of the nickel-based active site where the oxygen evolution reaction occurs. Thus, a single-atom catalyst has realized bifunctional catalytic characteristics, exhibiting suitable reactivity for both reactions. Furthermore, the research team applied a method of directly growing the catalyst on the electrode surface, achieving an electrode structure that does not require a separate binder. This significantly improved electrical conductivity and ensured excellent durability even during long-term operation.

This technology significantly reduces precious metal usage to within 1.5% compared to existing precious metal catalysts while achieving outstanding performance in both hydrogen and oxygen evolution reactions. In addition, it demonstrates high stability with minimal performance degradation even after continuous operation for over 300 hours in an anion exchange membrane (AEM) water electrolysis system. This research outcome demonstrates the technical feasibility of simultaneously enhancing the economic viability and durability of electrolysis systems by minimizing precious metal usage and simplifying electrode structures. It is expected to significantly contribute to the commercialization of green hydrogen production and the reduction of hydrogen production costs in the future.

Dr. Na Jongbeom of KIST stated, “This work is highly significant as it resolves the two essential reactions for hydrogen production using a single catalyst while reducing precious metal consumption.” He added, “This technology will accelerate the commercialization of water electrolysis devices and provide substantial support for expanding hydrogen energy.”

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KIST was established in 1966 as the first government-funded research institute in Korea. KIST now strives to solve national and social challenges and secure growth engines through leading and innovative research. For more information, please visit KIST’s website at https://kist.re.kr//eng/index.do

This research was conducted with support from the Ministry of Science and ICT (Minister Bae Kyung-hoon) through KIST’s Institutional Program and Excellent New Researcher Program (RS-2024-00350423), the DACU Core Technology Development Project (RS-2023-00259920), and the Korea-US-Japan International Joint Research Project (Global-24-003). The research results were published in the latest issue of the international journal Advanced Energy Materials (IF: 26.0, JCR (%): 2.5%).

Newswise — The aviation industry accounts for a significant share of global carbon emissions. In response, the international community is expanding mandatory use of Sustainable Aviation Fuel (SAF), which is produced from organic waste or biomass and is expected to significantly reduce greenhouse gas emissions compared to conventional fossil-based jet fuel. However, high production costs remain a major challenge, leading some airlines in Europe and Japan to pass SAF-related costs on to consumers.

Against this backdrop, a research team led by Dr. Yun-Jo Lee at the Korea Research Institute of Chemical Technology (KRICT), in collaboration with EN2CORE Technology Co., Ltd., has successfully demonstrated an integrated process that converts landfill gas generated from organic waste—such as food waste—into aviation fuel.

Currently, the refining industry mainly produces SAF from used cooking oil. However, used cooking oil is limited in supply and is also used for other applications such as biodiesel, making it relatively expensive and difficult to secure in large quantities. In contrast, landfill gas generated from food waste and livestock manure is abundant and inexpensive. This study represents the first domestic demonstration of aviation fuel production using landfill gas as the primary feedstock.

Producing aviation fuel from landfill gas requires overcoming two major challenges: purifying the gas to obtain suitable intermediates and improving the efficiency of converting gaseous intermediates into liquid fuels. The research team addressed these challenges by developing an integrated process encompassing landfill gas pretreatment, syngas production, and catalytic conversion of syngas into liquid fuels.

EN2CORE Technology was responsible for the upstream processes. Landfill gas collected from waste disposal sites is desulfurized and treated using membrane-based separation to reduce excess carbon dioxide. The purified gas is then converted into synthesis gas—containing carbon monoxide and hydrogen—using a proprietary plasma reforming reactor, and subsequently supplied to KRICT.

KRICT applied the Fischer–Tropsch process to convert the gaseous syngas into liquid fuels. In this process, hydrogen and carbon react on a catalyst surface to form hydrocarbon chains. Hydrocarbons of appropriate chain length become liquid fuels, while longer chains form solid byproducts such as wax. By employing zeolite- and cobalt-based catalysts, KRICT significantly improved selectivity toward liquid fuels rather than solid byproducts.

A key innovation of this work is the application of a microchannel reactor. Excessive heat generation during aviation fuel synthesis can damage catalysts and reduce process stability. The microchannel reactor developed by the team features alternating layers of catalyst and coolant channels, enabling rapid heat removal and suppression of thermal runaway. Through integrated and modular design, the reactor volume was reduced by up to one-tenth compared to conventional systems. Production capacity can be expanded simply by adding modules.

For demonstration purposes, the team constructed an integrated pilot facility on a landfill site in Dalseong-gun, Daegu. The facility, approximately 100 square meters in size and comparable to a two-story detached house, successfully produced 100 kg of sustainable aviation fuel per day, achieving a liquid fuel selectivity exceeding 75 percent. The team is currently optimizing long-term operation conditions and further enhancing catalyst and reactor performance.

This achievement demonstrates the potential to convert everyday waste-derived gases from food waste and sewage sludge into high-value aviation fuel. Moreover, it shows that aviation fuel production—previously limited to large-scale centralized plants—can be realized at local landfills or small waste treatment facilities. The technology is therefore expected to contribute to the establishment of decentralized SAF production systems and strengthen the competitiveness of Korea’s SAF industry.

The research team noted that the work is significant in securing an integrated process technology that converts organic waste into high-value fuels. KRICT President Young-Kuk Lee stated that the technology has strong potential to become a representative solution capable of achieving both carbon neutrality and a circular economy.

The development of two catalysts enabling selective production of liquid fuels was published as an inside cover article in ACS Catalysis (November 2025) and in Fuel (January 2026).

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KRICT is a non-profit research institute funded by the Korean government. Since its foundation in 1976, KRICT has played a leading role in advancing national chemical technologies in the fields of chemistry, material science, environmental science, and chemical engineering. Now, KRICT is moving forward to become a globally leading research institute tackling the most challenging issues in the field of Chemistry and Engineering and will continue to fulfill its role in developing chemical technologies that benefit the entire world and contribute to maintaining a healthy planet. More detailed information on KRICT can be found at https://www.krict.re.kr/eng/

This research was supported by “Development of integrated demonstration process for the production of bio naphtha/lubricant oil from organic waste-derived biogas” (Project No. RS-2022-NR068680) through the National Research Foundation (NRF) funded by the Ministry of Science and ICT (MSIT), Republic of Korea.

Newswise — Lithium-ion batteries serve as the core energy storage devices in various industries and everyday products, including smartphones, electric vehicles, and ESS (energy storage systems). However, conventional lithium-ion batteries use liquid electrolytes, posing a risk of fire or explosion when subjected to external impact or overheating. Recent electric vehicle fire incidents have heightened concerns about their safety. As an alternative to overcome these limitations, ‘all-solid-state batteries’-which use non-flammable solid materials as electrolytes-are gaining attention as next-generation battery technology.

However, amorphous solid electrolytes-the core material for all-solid-state batteries-have faced limitations in analyzing lithium-ion transport mechanisms due to the irregularity of their internal structure. Consequently, performance improvements have been achieved empirically by altering electrolyte composition or compression conditions, making it difficult to systematically explain the causes of performance differences.

A research team led by Dr. Byungju, Lee at the Computational Science Research Center of the Korea Institute of Science and Technology (KIST, President Sang-Rok Oh) has identified key factors governing lithium ion movement in amorphous solid electrolytes through AI-based atomic simulations. The team analyzed lithium-ion movement by distinguishing it into ‘ease of movement between sites’ and ‘connectivity of movement paths’. They confirmed that overall performance is more significantly influenced by the difficulty of ions moving from one site to the next than by path connectivity.

In fact, while ion conductivity performance varied by up to fivefold depending on lithium ion mobility, the effect of pathway connectivity was limited to approximately a twofold difference. This provides a quantitative basis for interpreting performance variations that were previously difficult to explain due to the amorphous structure. Furthermore, the research team identified specific structural conditions that enhance lithium ion mobility. The higher the proportion of structures where four sulfur atoms surrounded a lithium ion, the faster the ion migration became. Optimal performance was achieved when the size of the internal void space fell within an appropriate range. Notably, excessively large voids actually hindered ion migration and degraded performance. This finding overturns the conventional wisdom that ‘lower density leads to higher conductivity’.

The results of this study can be directly applied to the design and manufacturing process of solid electrolytes for all-solid-state batteries. Simply controlling the internal structure by adjusting the electrolyte composition ratio or compression/molding conditions can improve ionic conductivity performance without requiring additional material changes, making it highly applicable in industrial settings. Furthermore, the analytical method proposed in this study can be extended to the development of various solid electrolyte materials. By pre-selecting high-performance candidate materials, it can dramatically enhance performance prediction and accelerate material development speed. This is expected to advance the commercialization of all-solid-state batteries in fields where safety and energy density are critical, such as electric vehicles and energy storage devices.

Dr. Byungju, Lee of KIST stated, “This research is significant in that it clearly identifies the key factors determining the performance of amorphous solid electrolytes.” He added, “As it presents design criteria enabling systematic improvement of material performance, we expect it to contribute to accelerating the commercialization of all-solid-state batteries.”

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KIST was established in 1966 as the first government-funded research institute in Korea. KIST now strives to solve national and social challenges and secure growth engines through leading and innovative research. For more information, please visit KIST’s website at https://kist.re.kr//eng/index.do

This research was conducted as part of KIST’s major projects and the Materials Global Young Connect Project (RS-2024-00407995), supported by the Ministry of Science and ICT (Minister Bae Kyung-hoon). The research findings were published in the latest issue of the international journal Advanced Energy Materials (IF 26.0, JCR field 2.5%).

Newswise — With the global shift toward renewable energy, solid oxide–based electrochemical devices have become essential for hydrogen production, energy storage, and fuel-to-electricity conversion. Traditional oxygen-ion–conducting cells require high operating temperatures, creating cost, durability, and material compatibility challenges. Protonic ceramic cells (PCCs) offer an alternative, operating efficiently at 300–600 °C and allowing the use of cheaper components, improved thermal cycling, and enhanced stability. Despite rapid progress in materials engineering, the fundamental mechanisms governing hydration, proton conduction, and electrode reactions remain insufficiently understood. These gaps hinder rational catalyst design and slow the translation of new materials into practical PCC devices. Based on these challenges, there is a critical need to deeply investigate proton behavior, interfacial chemistry, and catalytic mechanisms.

Researchers from Idaho National Laboratory and collaborating universities published (DOI: 10.1016/j.esci.2025.100437) a comprehensive review on August 2025, in eScience, detailing how diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) is transforming protonic ceramic cell research. The article summarizes recent breakthroughs in applying DRIFTS to oxygen electrodes, proton-conducting electrolytes, and hydrogen electrodes under realistic operating conditions. By capturing surface intermediates and hydration signatures, the review highlights DRIFTS as an essential technique for understanding reaction pathways, improving proton uptake, and guiding next-generation materials design for high-performance PCC systems. This platform was recently reported in a research article by the same group in Energy Environmental Science, providing the substantial evidence on how it is powerful in electrochemical system at elevated temperatures, specifically for PCC.

The review outlines how DRIFTS enables direct observation of surface species and dynamic reactions across PCC components. For oxygen electrodes, DRIFTS detects hydroxyl stretching bands associated with proton uptake, providing insights into triple-conducting materials such as PrNi₀.₅Co₀.₅O₃–δ, PrBaCo₂O₅+δ, and high-entropy perovskites. Doping-induced enhancements—such as Zn-stabilized hydration sites or Cs-driven oxygen vacancy formation—are revealed through stronger –OH peaks and temperature-dependent hydration behavior. DRIFTS also verifies steam-induced structural transformations, including monoclinic-to-cubic transitions and the emergence of multi-phase composites that improve catalytic performance.

For protonic electrolytes, DRIFTS distinguishes Zr–OH–Zr and Zr–OH–X environments, enabling researchers to identify proton trapping, dehydration kinetics, and dopant-dependent hydrogen-bonding effects in materials like Sc- and Y-doped BaZrO₃. The technique further detects carbonate residues that impair sintering, guiding optimized fabrication routes.

In catalytic applications, DRIFTS captures intermediates during CO₂ hydrogenation, methane reforming, and chemical-fuel co-conversion, identifying formates, carbonates, and CO adsorption species crucial to mechanistic understanding. Emerging operando DRIFTS configurations with applied voltage demonstrate the movement of surface protons during real electrochemical reactions, validating proton migration and reaction coupling at electrode interfaces. Collectively, the review shows how DRIFTS bridges fundamental chemistry with practical PCC engineering.

According to the authors, DRIFTS provides a uniquely powerful lens for understanding how PCC materials behave under realistic conditions. They emphasize that the ability to monitor hydration, proton uptake, and catalytic intermediates in real time offers insights unavailable from traditional characterization tools. The authors note that integrating DRIFTS with complementary methods—such as synchrotron-based IR, X-ray spectroscopy, and computational modeling—will further expand its impact. They conclude that establishing operando DRIFTS systems capable of applying electrical load represents a critical next step for unraveling the complex, surface-driven processes that dictate PCC performance.

The review underscores that advancing DRIFTS techniques will accelerate the rational design of PCC materials for clean-energy technologies. Improved understanding of hydration behavior and proton migration can guide the development of durable oxygen electrodes, CO₂-tolerant electrolytes, and carbon-resistant hydrogen electrodes. Insights into reaction intermediates also support catalyst optimization for hydrogen production, CO₂ reduction, methane reforming, and value-added chemical synthesis. As energy systems evolve toward efficiency and sustainability, DRIFTS-enabled mechanistic knowledge will help bridge laboratory discoveries and scalable PCC devices. Ultimately, the authors note that expanding operando DRIFTS capabilities will be essential for building the next generation of robust, high-performance ceramic energy systems.

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References

DOI

10.1016/j.esci.2025.100437

Original Source URL

https://doi.org/10.1016/j.esci.2025.100437

Funding information

This work is supported by the HydroGEN Advanced Water Splitting Materials Consortium, established as part of the Energy Materials Network under the U.S. Department of Energy (USDOE); the Office of Energy Efficiency and Renewable Energy (EERE); and the Hydrogen and Fuel Cell Technologies Office (HFTO), under DOE Idaho Operations Office, under contract no. DE-AC07-05ID14517.

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