Efficient synthesis of IrPtPdNi/GO nanocatalysts for superior performance in water electrolysis  

作　　者：Sanha Jang Young Hwa Yun Jin Gyu Lee Kyung Hee Oh Shin Wook Kang Jung-Il Yang MinJoong Kim Changsoo Lee Ji Chan Park 

机构地区：[1]Clean Fuel Research Laboratory, Korea Institute of Energy Research, Daejeon, 34129, Korea [2]Hydrogen Research Department, Korea Institute of Energy Research, Daejeon, 34129, Korea [3]Energy Engineering, University of Science and Technology, Daejeon, 34113, Korea

出　　处：《Nano Research》2024年第11期10208-10215,共8页纳米研究（英文版）

基　　金：conducted within the framework of a research and development program at the Korea Institute of Energy Research(Nos.C3-2420 and C4-2403).

摘　　要：Traditional iridium (Ir) oxide catalysts have faced significant limitations in water electrolysis, particularly under acidic conditions where instability and degradation severely restrict the efficiency of the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER). To overcome these challenges, this study successfully synthesized highly dispersed IrPtPdNi alloy nanoparticles on a graphene oxide support using a vertically moving reactor, demonstrating exceptional performance in water electrolysis. These nanoparticles, synthesized via a fast-moving bed pyrolysis method, combine iridium, platinum, palladium, and nickel. They exhibit lower overpotentials in OER and comparable performance in HER to commercial catalysts, while also offering enhanced stability. These results surpass the limitations of traditional catalysts, marking significant progress toward more efficient and sustainable hydrogen production technologies. This advancement is expected to contribute significantly to the development of sustainable energy systems by innovatively enhancing the performance of catalysts in the electrochemical water-splitting process.

关 键 词：multicomponent nanoparticles rapid synthesis water electrolysis alloy iridium cat 

分 类 号：O64[理学—物理化学]