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

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journal contribution
posted on 01.01.2014, 00:00 authored by Y Zheng, Y Jiao, Luhua LiLuhua Li, Tan Xing, Ying (Ian) ChenYing (Ian) Chen, M Jaroniec, S Z Qiao
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.

History

Journal

ACS Nano

Volume

8

Issue

5

Pagination

5290 - 5296

Publisher

American Chemical Society

Location

Washington, D.C.

eISSN

1936-086X

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal

Copyright notice

2014, American Chemical Society