期刊
CHEMSUSCHEM
卷 12, 期 8, 页码 1576-1590出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201802873
关键词
electrochemistry; iridium; solid polymer electrolytes; supported catalysts; water splitting
资金
- National Natural Science Foundation of China [51503187, 21504037, 51603194]
- Shanxi Provincial Foundation for Science and Technology Research [201601D021058, 201701D221050, 20181101006, 20181102019]
- NIMHD-RCMI from the National Institute of Minority Health, Health Disparities [5G12MD007595]
- NIGMS-BUILD [8UL1GM118967]
- National Science Foundation [1700429]
- Fluid Interface Reactions, Structures and Transport (FIRST) Center, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences
- U.S. Department of Energy [DE-AC0500OR22725]
Chemical energy conversion/storage through water splitting for hydrogen production has been recognized as the ideal solution to the transient nature of renewable energy sources. Solid polymer electrolyte (SPE) water electrolysis is one of the most practical ways to produce pure H-2. Electrocatalysts are key materials in the SPE water electrolysis. At the anode side, electrode materials catalyzing the oxygen evolution reaction (OER) require specific properties. Among the reported materials, only iridium presents high activity and is more stable. In this Minireview, an application overview of single iridium metal and its oxide catalysts-binary, ternary, and multicomponent catalysts of iridium oxides and supported composite catalysts-for the OER in SPE water electrolysis is presented. Two main strategies to improve the activity of an electrocatalyst system, namely, increasing the number of active sites and the intrinsic activity of each active site, are reviewed with detailed examples. The challenges and perspectives in this field are also discussed.
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