Cobalt-Exchanged Poly(Heptazine Imides) as Transition Metal-Nx Electrocatalysts for the Oxygen Evolution Reaction

被引：75

作者：

Ye, Meng-Yang ^{[1
]}

Li, Shuang ^{[1
]}

Zhao, Xiaojia ^{[1
]}

Tarakina, Nadezda, V ^{[2
]}

Teutloff, Christian ^{[3
]}

Chow, Wing Ying ^{[4
]}

Bittl, Robert ^{[3
]}

Thomas, Arne ^{[1
]}

机构：

[1] Tech Univ Berlin, Dept Chem Funct Mat, Hardenbergstr 40, D-10623 Berlin, Germany

[2] Max Planck Inst Colloids & Interfaces, Dept Colloid Chem, D-14476 Potsdam, Germany

[3] Free Univ Berlin, Fachbereich Phys, Berlin Joint EPR Lab, Arnimallee 14, D-14195 Berlin, Germany

[4] Forschungsverbund Berlin eV FMP, Leibniz Forschungsinst Mol Pharmakol, Campus Berlin Buch,Robert Rossle Str 10, D-13125 Berlin, Germany

来源：

ADVANCED MATERIALS | 2020年 / 32卷 / 09期

关键词：

carbon nitride; electrocatalysis; M-N-x-C; oxygen evolution reaction; poly(heptazine imides); ORGANIC FRAMEWORK; REDUCTION; NANOPARTICLES; COORDINATION; MORPHOLOGY; CATALYSTS; POLYMERS; GRAPHENE; HYDROGEN; WATER;

D O I：

10.1002/adma.201903942

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页数：7

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