Toward Design of Synergistically Active Carbon-Based Catalysts for Electrocatalytic Hydrogen Evolution

作者：Yao Zheng, Yan Jiao, Lu Hua Li, Tan Xing, Ying Chen, Mietek Jaroniec, Shi‐Zhang Qiao · 发表于：ACS Nano · 年份：2014 · DOI：10.1021/nn501434a · 被引用次数：1063 · 研究领域：Electrocatalysts for Energy Conversion、Fuel Cells and Related Materials、Advanced Photocatalysis Techniques

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.