催化作用
杂原子
制氢
材料科学
电催化剂
协同催化
电解
反应性(心理学)
质子交换膜燃料电池
碳纤维
氢
电解水
金属
电化学
化学工程
纳米技术
石墨烯
无机化学
化学
电极
复合数
有机化学
冶金
物理化学
复合材料
病理
替代医学
工程类
医学
电解质
戒指(化学)
作者
Yao Zheng,Yan Jiao,Lu Hua Li,Xuezhi Tan,Ying Chen,Mietek Jaroniec,Shi‐Zhang Qiao
出处
期刊:ACS Nano
[American Chemical Society]
日期:2014-05-01
卷期号:8 (5): 5290-5296
被引量:926
摘要
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.
科研通智能强力驱动
Strongly Powered by AbleSci AI