@article{b9e0e4aa9a0546249e1a1241128b20b5,
title = "Atomic cobalt on nitrogen-doped graphene for hydrogen generation",
abstract = "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 V). 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.",
author = "Huilong Fei and Juncai Dong and Arellano-Jim{\'e}nez, {M. Josefina} and Gonglan Ye and {Dong Kim}, Nam and Samuel, {Errol L.G.} and Zhiwei Peng and Zhuan Zhu and Fan Qin and Jiming Bao and Yacaman, {Miguel Jose} and Ajayan, {Pulickel M.} and Dongliang Chen and Tour, {James M.}",
note = "Funding Information: We thank Ye Wu from Peking University for insightful discussions on the EXAFS analysis. Funding was provided by the AFOSR MURI program (FA9550-12-1-0035) and the AFOSR (FA9550-14-1-0111). This work was partially supported by a grant from the National Institute on Minority Health and Health Disparities (G12MD007591) from the National Institutes of Health, the Welch Foundation Grant (AX-1615). J.D. and D.C. acknowledge support from the National Natural Science Foundation of China (Grant No. 11475212). J.M.B. acknowledges support from the Robert A. Welch Foundation (E-1728). We also thank China Scholarship Council for partial financial support (to H.F.). Publisher Copyright: {\textcopyright} 2015 Macmillan Publishers Limited. All rights reserved.",
year = "2015",
month = oct,
day = "21",
doi = "10.1038/ncomms9668",
language = "English (US)",
volume = "6",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Nature Publishing Group",
}