期刊
ADVANCED MATERIALS
卷 32, 期 9, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201903942
关键词
carbon nitride; electrocatalysis; M-N-x-C; oxygen evolution reaction; poly(heptazine imides)
类别
资金
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [EXC 2008/1-390540038]
- Deutsche Forschungsgemeinschaft (DFG) [EXC 2008/1-390540038]
- DFG [TH 1463/12-1]
Poly(heptazine imides) hosting cobalt ions as countercations are presented as promising electrocatalysts for the oxygen evolution reaction (OER). A facile mixed-salt melt-assisted condensation is developed to prepare such cobalt poly(heptazine imides) (PHI-Co). The Co ions can be introduced in well-controlled amounts using this method, and are shown to be atomically dispersed within the imide-linked heptazine matrix. When applied to electrocatalytic OER, PHI-Co shows a remarkable activity with an overpotential of 324 mV and Tafel slope of 44 mV dec(-1) in 1 m KOH.
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