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Issue 8, 2015
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Cobalt diselenide nanobelts grafted on carbon fiber felt: an efficient and robust 3D cathode for hydrogen production

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Abstract

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.

Graphical abstract: Cobalt diselenide nanobelts grafted on carbon fiber felt: an efficient and robust 3D cathode for hydrogen production

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Publication details

The article was received on 14 Apr 2015, accepted on 18 May 2015 and first published on 18 May 2015


Article type: Edge Article
DOI: 10.1039/C5SC01335F
Chem. Sci., 2015,6, 4594-4598
  • Open access: Creative Commons BY license
    All publication charges for this article have been paid for by the Royal Society of Chemistry

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    Cobalt diselenide nanobelts grafted on carbon fiber felt: an efficient and robust 3D cathode for hydrogen production

    Y. Zheng, M. Gao, Z. Yu, Q. Gao, H. Gao and S. Yu, Chem. Sci., 2015, 6, 4594
    DOI: 10.1039/C5SC01335F

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