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Issue 10, 2012
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Copper molybdenum sulfide: a new efficient electrocatalyst for hydrogen production from water

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Abstract

A new inorganic solid state electrocatalyst for the hydrogen evolution reaction (HER) is reported. Highly crystalline layered ternary sulfide copper-molybdenum-sulfide (Cu2MoS4) was prepared by a simple precipitation method from CuI and [MoS4]2− precursors. In aqueous solution and over a wide pH range (pH 0 to 7), this Cu2MoS4 showed very good catalytic activity for HER with an overvoltage requirement of only ca. 135 mV and an apparent exchange current density of 0.040 mA cm−2 (Tafel slope of ca. 95 mV per decade was found irrespective of the pH value). This Cu2MoS4 catalyst was found to be stable during electrocatalytic hydrogen generation. Therefore, it represents an attractive alternative to platinum.

Graphical abstract: Copper molybdenum sulfide: a new efficient electrocatalyst for hydrogen production from water

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Publication details

The article was received on 21 Jun 2012, accepted on 07 Aug 2012 and first published on 08 Aug 2012


Article type: Communication
DOI: 10.1039/C2EE22611A
Citation: Energy Environ. Sci., 2012,5, 8912-8916
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    Copper molybdenum sulfide: a new efficient electrocatalyst for hydrogen production from water

    P. D. Tran, M. Nguyen, S. S. Pramana, A. Bhattacharjee, S. Y. Chiam, J. Fize, M. J. Field, V. Artero, L. H. Wong, J. Loo and J. Barber, Energy Environ. Sci., 2012, 5, 8912
    DOI: 10.1039/C2EE22611A

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