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Toward design of synergistically active carbon-based catalysts for electrocatalytic hydrogen evolution.

ABSTRACT: Replacement of precious Pt catalyst with cost-effective alternatives would be significantly beneficial for hydrogen production via electrocatalytic hydrogen evolution reaction (HER). All candidates thus far are exclusively metallic catalysts, which suffer inherent corrosion and oxidation susceptibility during acidic proton-exchange membrane electrolysis. Herein, based on theoretical predictions, we designed and synthesized nitrogen (N) and phosphorus (P) dual-doped graphene as a nonmetallic electrocatalyst for sustainable and efficient hydrogen production. The N and P heteroatoms could coactivate the adjacent C atom in the graphene matrix by affecting its valence orbital energy levels to induce a synergistically enhanced reactivity toward HER. As a result, the dual-doped graphene showed higher electrocatalytic HER activity than single-doped ones and comparable performance to some of the traditional metallic catalysts.

SUBMITTER: Zheng Y

PROVIDER: S-EPMC4046781 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature

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Toward design of synergistically active carbon-based catalysts for electrocatalytic hydrogen evolution.

Zheng Yao Y Jiao Yan Y Li Lu Hua LH Xing Tan T Chen Ying Y Jaroniec Mietek M Qiao Shi Zhang SZ

ACS nano 20140501 5

Replacement of precious Pt catalyst with cost-effective alternatives would be significantly beneficial for hydrogen production via electrocatalytic hydrogen evolution reaction (HER). All candidates thus far are exclusively metallic catalysts, which suffer inherent corrosion and oxidation susceptibility during acidic proton-exchange membrane electrolysis. Herein, based on theoretical predictions, we designed and synthesized nitrogen (N) and phosphorus (P) dual-doped graphene as a nonmetallic elec ...[more]

PMID: 24779586

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