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Issue 40, 2015
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Nanoflower-like metallic conductive MoO2 as a high-performance non-precious metal electrocatalyst for the hydrogen evolution reaction

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Abstract

Searching for non-precious metal electrocatalysts with high activity and stability for the hydrogen evolution reaction (HER) has attracted considerable attention. Herein, we report the synthesis of nanoflower-like MoO2 on nickel foam (NFL MoO2/NF). Remarkably, as a HER electrocatalyst operating in alkaline electrolytes, NFL MoO2/NF exhibits high stability and activity. The onset potential of NFL MoO2/NF is almost 0 V versus the reversible hydrogen electrode (RHE) and bubbles can be produced on the surface of NFL MoO2/NF under a static overpotential of only 10 mV, comparable to commercial Pt/C. NFL MoO2/NF needs overpotentials of only about 55 and 80 mV to achieve current densities of 10 and 20 mA cm−2, respectively. NFL MoO2/NF has superior stability in the long-term electrochemical process and retains 94.3 percent of its initial current density after 25 hours.

Graphical abstract: Nanoflower-like metallic conductive MoO2 as a high-performance non-precious metal electrocatalyst for the hydrogen evolution reaction

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The article was received on 03 Aug 2015, accepted on 10 Sep 2015 and first published on 10 Sep 2015


Article type: Communication
DOI: 10.1039/C5TA06018D
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J. Mater. Chem. A, 2015,3, 20080-20085

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    Nanoflower-like metallic conductive MoO2 as a high-performance non-precious metal electrocatalyst for the hydrogen evolution reaction

    Y. Jin and P. K. Shen, J. Mater. Chem. A, 2015, 3, 20080
    DOI: 10.1039/C5TA06018D

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