Cobalt diselenide nanobelts grafted on carbon fiber felt: an efficient and robust 3D cathode for hydrogen production
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发表刊物：Chem. Sci.
摘要：Design and fabrication of low-cost, highly efficient and robust three-dimensional (3D) hierarchical structure materials for electrochemical reduction of water to make molecular hydrogen is of paramount importance for real water splitting applications. Herein, a 3D hydrogen evolution cathode constructed by in situ growing of cobalt diselenide nanobelts on the surface of commercial carbon fiber felt shows exceptionally high catalytic activity with 141 mV overpotential to afford a current density of 10 mA cm-2, and a high exchange current density of 5.9× 10^-2 mA cm-2. Remarkably, it also exhibits excellent catalytic stability, and could be used for more than 30 000 potential cycles with no decrease in the current density in 0.5 M H2SO4. This easily prepared 3D material with excellent electrocatalytic performance is promising as a realistic hydrogen evolution electrode.
备注：Ya-Rong Zheng†, Min-Rui Gao†, Zi-You Yu, Qiang Gao, Huai-Ling Gao and Shu-Hong Yu*
卷号：6
页面范围：4594-4598
是否译文：否
发表时间：2015-05-18
发布期刊链接：https://pubs.rsc.org/en/content/articlehtml/2015/sc/c5sc01335f