期刊
ELECTROCHIMICA ACTA
卷 321, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2019.134679
关键词
Covalent organic polymer; Bimetallic electrocatalyst; Multiple components; Oxygen evolution reaction
资金
- One Thousand Young Talents Program under the Recruitment Program of Global Experts
- National Natural Science Foundation of China (NSFC) [21771179, 21233009]
- Strategic Priority Research Program of CAS [XDB20010200]
The development of highly active and stable electrocatalysts for the oxygen evolution reaction is of great importance for renewable-energy. Herein, a novel hybrid nanomaterial with multicomponent active dopants was conveniently fabricated by pyrolytic conversion from a bimetallic ion-decorated heteroatom-rich (P, S and N) covalent organic polymer (COP) composite. The unique nanostructure with innumerable Co9-xNixS8 and CoNiP nanoparticles anchored on P/S/N multi-doped carbon/carbon nanotubes, through in situ electrochemical reconstruction effectively provides substantial active sites and promotes charge transfer, and hence affords outstanding activity with a low overpotential of 270 mV at 10 mAcm(-2) and excellent stability for oxygen evolution reaction based on two runs of 10-h durability test in alkaline solution, which much outperformed the fewer-component counterparts. (C) 2019 Elsevier Ltd. All rights reserved.
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