Atomic cobalt on nitrogen-doped graphene for hydrogen generation

被引：1525

作者：

Fei, Huilong ^{[1
]}

Dong, Juncai ^{[2
]}

Arellano-Jimenez, M. Josefina ^{[3
]}

Ye, Gonglan ^{[4
]}

Kim, Nam Dong ^{[1
]}

Samuel, Errol L. G. ^{[1
]}

Peng, Zhiwei ^{[1
]}

Zhu, Zhuan ^{[5
]}

Qin, Fan ^{[5
]}

Bao, Jiming ^{[5
]}

Yacaman, Miguel Jose ^{[3
]}

Ajayan, Pulickel M. ^{[4
]}

Chen, Dongliang ^{[2
]}

Tour, James M. ^{[1
,4
,6
]}

机构：

[1] Rice Univ, Dept Chem, Houston, TX 77005 USA

[2] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China

[3] Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX 78249 USA

[4] Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX 77005 USA

[5] Univ Houston, Dept Elect & Comp Engn, Houston, TX 77204 USA

[6] Rice Univ, Smalley Inst Nanoscale Sci & Technol, Houston, TX 77005 USA

来源：

NATURE COMMUNICATIONS | 2015年 / 6卷

基金：

中国国家自然科学基金; 美国国家卫生研究院;

关键词：

SINGLE-ATOM; OXYGEN REDUCTION; CARBON NANOTUBES; CO OXIDATION; EVOLUTION; WATER; CATALYSTS; ELECTROCATALYST; PERFORMANCE; NANOPARTICLES;

D O I：

10.1038/ncomms9668

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Reduction of water to hydrogen through electrocatalysis holds great promise for clean energy, but its large-scale application relies on the development of inexpensive and efficient catalysts to replace precious platinum catalysts. Here we report an electrocatalyst for hydrogen generation based on very small amounts of cobalt dispersed as individual atoms on nitrogen-doped graphene. This catalyst is robust and highly active in aqueous media with very low overpotentials (30 mV). A variety of analytical techniques and electrochemical measurements suggest that the catalytically active sites are associated with the metal centres coordinated to nitrogen. This unusual atomic constitution of supported metals is suggestive of a new approach to preparing extremely efficient single-atom catalysts.

引用

页数：8

共 43 条

[1]

Andreiadis ES, 2013, NAT CHEM, V5, P48, DOI [10.1038/nchem.1481, 10.1038/NCHEM.1481]

[2] Splitting Water with Cobalt [J].