期刊
JOURNAL OF PORPHYRINS AND PHTHALOCYANINES
卷 23, 期 9, 页码 1013-1019出版社
WORLD SCI PUBL CO INC
DOI: 10.1142/S1088424619500585
关键词
non-precious metal electrocatalysts; self-assembly; hemin; oxygen reduction reaction
资金
- National Key Research & Development Program of China [2016YFB0101307]
- National Natural Science Fund of China [21003114, 21103163, 21306188, 21373211, 21306187]
- Liaoning BaiQianWan Talents Program [201519]
- Program for Liaoning Excellent Talents in University [LR201514]
- Dalian Excellent Young Scientific and Technological Talents [2015R006]
- Fundamental Research Funds for the Central Universities [DUT15RC(3)001, DUT15ZD225]
The employment of inexpensive metallomacrocycles to create non-precious metal electrocatalysts (NPMEs) with high performance remains a challenge. Herein, we report the self-assembly of low-cost and abundant hemin on carbon black (EC600) under hydrothermal conditions in combination with subsequent pyrolysis, leading to a new NPME. Our NPME exhibits a half-wave potential of 0.89 V vs. reversible hydrogen electrode (RHE), an onset potential of 1.0 V vs. RHE and an average HO2- yield below 2% as well as high durability toward oxygen reduction reactions (ORR) in alkaline electrolytes, ranking at the top of all reported NPMEs derived from hemin.
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