Strategies for the Design and Synthesis of Pt-Based Nanostructured Electrocatalysts in Proton Exchange Membrane Fuel Cells (PEMFCs)

IF 4.3 Q2 ENGINEERING, CHEMICAL
Jae-Hun Kim, Soo Youn Lee, Hye Jin Lee, Hae In Lee, Dong-Ha Lim, Yoo Seok Lee*, Hee Soo Kim* and Sahng Hyuck Woo*, 
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Abstract

With the rapidly increasing use of fossil fuels, the exploration of various renewable energy sources has become critical. Among these, proton exchange membrane fuel cells (PEMFCs) are garnering significant attention as the next generation of green energy, which is ascribed to their ability to directly convert chemical energy into electricity without emitting pollutants. Specifically, the design and synthesis of effective catalysts are crucial in reducing the cost of commercial PEMFCs because the performance of the oxygen reduction reaction (ORR), which is the most critical reaction in PEMFCs, dictates the overall performance of the cell. Consequently, numerous research groups have recently focused on enhancing the performance and durability of the ORR catalysts. These improvements are being pursued in various fields, including geometry engineering and interfacial engineering. Efforts involve tuning the size and chemical composition of Pt catalysts, as well as developing diverse nanostructures that can be selectively positioned on the crystal surface or alloyed with transition metals. This review delves into the fundamentals of fuel cells and ORR catalysts, which are pivotal energy sources in the realm of green energy. It also outlines a series of catalyst synthesis strategies aimed at boosting their performance. Additionally, this paper offers new insights and highlights key considerations for the future development of platinum-based ORR catalysts in fuel cells.

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ACS Engineering Au
ACS Engineering Au 化学工程技术-
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期刊介绍: )ACS Engineering Au is an open access journal that reports significant advances in chemical engineering applied chemistry and energy covering fundamentals processes and products. The journal's broad scope includes experimental theoretical mathematical computational chemical and physical research from academic and industrial settings. Short letters comprehensive articles reviews and perspectives are welcome on topics that include:Fundamental research in such areas as thermodynamics transport phenomena (flow mixing mass & heat transfer) chemical reaction kinetics and engineering catalysis separations interfacial phenomena and materialsProcess design development and intensification (e.g. process technologies for chemicals and materials synthesis and design methods process intensification multiphase reactors scale-up systems analysis process control data correlation schemes modeling machine learning Artificial Intelligence)Product research and development involving chemical and engineering aspects (e.g. catalysts plastics elastomers fibers adhesives coatings paper membranes lubricants ceramics aerosols fluidic devices intensified process equipment)Energy and fuels (e.g. pre-treatment processing and utilization of renewable energy resources; processing and utilization of fuels; properties and structure or molecular composition of both raw fuels and refined products; fuel cells hydrogen batteries; photochemical fuel and energy production; decarbonization; electrification; microwave; cavitation)Measurement techniques computational models and data on thermo-physical thermodynamic and transport properties of materials and phase equilibrium behaviorNew methods models and tools (e.g. real-time data analytics multi-scale models physics informed machine learning models machine learning enhanced physics-based models soft sensors high-performance computing)
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