A5100417186- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Advanced battery technologies research
- Advanced Photocatalysis Techniques
- Conducting polymers and applications
- Electrochemical Analysis and Applications
- Catalytic Processes in Materials Science
- Advancements in Solid Oxide Fuel Cells
- Quantum Dots Synthesis And Properties
- Membrane-based Ion Separation Techniques
- Covalent Organic Framework Applications
- Hybrid Renewable Energy Systems
- CO2 Reduction Techniques and Catalysts
- Supercapacitor Materials and Fabrication
- Chalcogenide Semiconductor Thin Films
- Metal-Organic Frameworks: Synthesis and Applications
- Analytical Chemistry and Sensors
- Perovskite Materials and Applications
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- MXene and MAX Phase Materials
- Machine Learning in Materials Science
- Copper-based nanomaterials and applications
- Analytical chemistry methods development
- Organic Electronics and Photovoltaics
Korea Institute of Science and Technology
2016-2025
Korea University of Science and Technology
2017-2025
Seoul National University
2023-2025
Korea University
2005-2023
Seoul Institute
2015-2021
Government of the Republic of Korea
2015-2021
Kangwon National University
2020
Fuel Cells and Hydrogen
2020
Kyonggi University
2017
Howon University
2015
Abstract To achieve excellent photoelectrochemical water‐splitting activity, photoanode materials with high light absorption and good charge‐separation efficiency are essential. One effective strategy for the production of satisfying these requirements is to adjust their band structure corresponding bandgap energy by introducing oxygen vacancies. A simple chemical reduction method that can systematically generate vacancies in barium stannate (BaSnO 3 (BSO)) crystal introduced, which thus...
Abstract Despite highly promising characteristics of three-dimensionally (3D) nanostructured catalysts for the oxygen evolution reaction (OER) in polymer electrolyte membrane water electrolyzers (PEMWEs), universal design rules maximizing their performance have not been explored. Here we show that woodpile (WP)-structured Ir, consisting 3D-printed, highly-ordered Ir nanowire building blocks, improve OER mass activity markedly. The WP structure secures electrochemically active surface area...
This review critically assessed the progress of hybrid LDHs nanostructure as competent multifunctional nanomaterials for energy conversion and storage systems.
A structure-mechanism-performance relationship of metal-free carbon catalysts for outstanding H 2 O production activity and selectivity in alkaline media.
Pt-based intermetallic nanostructures have demonstrated higher electrocatalytic performances compared to random alloy structures. However, the origin of their enhanced catalytic properties remains elusive. Furthermore, a robust synthetic strategy for well-defined represents challenge. Here, we reveal by combining theoretical and experimental results that activity enhancement in structures oxygen reduction reaction (ORR) originates from an intensified ligand effect. We prepared model...
Abstract The physical and chemical degradations of a state‐of‐the‐art proton exchange membrane (PEM) composed perfluorinated sulfonic acid (PFSA) ionomer polytetrafluoroethylene (PTFE) reinforcement are induced through the repeated expansion/shrinkage free radical attacks. Such essentially originate from loose structure materials low interactive binding force among PEM constituents. In this study, need for simplified design principles adhesives led to use mussel‐inspired polydopamine (PD) as...
Abstract Single atom catalysts (SACs) maximize the utilization of noble metal whereas nanoparticle have inner atoms unavailable. In this study, various electrocatalytic reactions were investigated for Pd and Pt SACs. The single immobilized on thin layers graphitic carbon nitride with black (for simplicity, C@C 3 N 4 ) to produce an electrochemically efficient stable atomic structure was confirmed by high‐angle annular dark field scanning transmission electron microscopy (HAADF‐STEM) extended...
Abstract In the era of global rise energy consumption and accompanying environmental issues, production via fuel cells plays a vital role in clean, secure, affordable future. The development Pt‐based binary alloy catalysts for oxygen reduction reaction (ORR) has contributed significantly to commercial realization cells, such as polymer electrolyte membrane (PEMFCs) phosphoric acid (PAFCs). However, short lifetime catalyst remains significant gap between lab‐scale real‐device evaluation...
This review outlines the strategies and challenges of state-of-the-art non-precious group metal-based catalysts toward water electrolysis.
The development of a novel approach to achieve high-performance and durable fuel cells is imperative for the further commercialization proton-exchange (or polymer electrolyte) membrane (PEMFCs). In this work, multifunctional dendritic Nafion/CeO2 structures were introduced onto cathode side interface between catalyst layer through electrospray deposition. enlarged interfacial contact area formed microscale voids gas diffusion medium. This improved PEMFC performance effective utilization...
Oxygen-based electrocatalysis is an integral aspect of a clean and sustainable energy conversion/storage system. The development economic bifunctional electrocatalysts with high activity durability during reversible reactions remains great challenge. tailored porous structure separately presented active sites for oxygen reduction evolution (ORR OER) without mutual interference are most crucial achieving desired catalysts. Here, we report hybrid composed sheath–core cobalt oxynitride...
This review covers MXene/LDH heterostructures, including synthesis, growth mechanism, morphology factors, and chemical properties. Synergistic interactions at the heterointerface their applications are analyzed in-depth.
Suppressing the oxidation of active-Ir(III) in IrOx catalysts is highly desirable to realize an efficient and durable oxygen evolution reaction water electrolysis. Although charge replenishment from supports can be effective preventing catalysts, most have inherently limited transfer capability. Here, we demonstrate that excess electron reservoir, which a charged species, incorporated antimony-doped tin oxide effectively control Ir states by boosting donations catalysts. Both computational...
Anion-exchange-membrane water electrolysis (AEMWE) is an emerging technology for hydrogen production. While nanoparticles are used as catalysts to enhance catalytic activity, they face durability challenges due high surface energy...
Abstract We demonstrate the facile microwave‐assisted synthesis of a porous organic framework 1 and sulfonated solid ( 1S ) through postsubstitution. Remarkably, conductivity showed an approximately 300‐fold enhancement at 30 °C as compared to that , reached 7.72×10 −2 S cm −1 80 90 % relative humidity. The superprotonic exceeds observed for any conductive polymer reported date. This material, which is cost‐effective scalable mass production, also revealed long‐term performance over more...