期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 8, 期 27, 页码 13437-13442出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ta03470c
关键词
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资金
- Australian Research Council [FT140100032]
- China Scholarship Council (CSC) [201604910910]
- National Science Foundation Graduate Research Fellowship Program [DGE-1746939]
In this work, a new surface engineering technique through UV/ozone treatment to improve the oxygen evolution reaction performance of nickel-iron hydroxide based catalysts has been developed. It is found that UV/ozone treatment can significantly improve the hydrophilicity of the catalysts as well as modify the electronic structure at the Ni-Fe center and oxidize Ni(2+)to Ni3+, which consequently enables better electrode-electrolyte contacts, stronger charge-transfer and more numbers of active sites with higher intrinsic activity during the OER. This work demonstrates UV/ozone treatment as a highly effective strategy towards the rational design of high-performance electrocatalysts by exploiting surface modifications.
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