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Issue 15, 2018
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Synthesis of single crystalline two-dimensional transition-metal phosphides via a salt-templating method

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Abstract

Transition-metal phosphides (TMPs) are considered as promising non-noble electrochemical catalysts for hydrogen evolution reaction (HER). Their highly active sites are located on certain facets, and single crystalline two-dimensional (2D) structures enable them to expose the most active facets for HER. However, the synthesis of single crystalline 2D TMPs is still a challenge owing to their intrinsically non-layered structures. Herein, we demonstrate the synthesis of various single crystalline 2D TMPs (Co2P, MoP2, Ni12P5 and WP2) by a salt-templating method. The as-synthesized 2D Co2P exhibited efficient electrocatalytic ability for HER with an overpotential of 41 mV at 10 mA cm−2 and a Tafel slope of 35 mV dec−1 in 0.5 M H2SO4 solution. We expect that the synthesis of 2D TMPs reported here will open the way to expand the family of 2D materials for electrocatalysis and beyond.

Graphical abstract: Synthesis of single crystalline two-dimensional transition-metal phosphides via a salt-templating method

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Publication details

The article was received on 23 Feb 2018, accepted on 13 Mar 2018 and first published on 04 Apr 2018


Article type: Communication
DOI: 10.1039/C8NR01556B
Citation: Nanoscale, 2018,10, 6844-6849
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    Synthesis of single crystalline two-dimensional transition-metal phosphides via a salt-templating method

    T. Li, H. Jin, Z. Liang, L. Huang, Y. Lu, H. Yu, Z. Hu, J. Wu, B. Y. Xia, G. Feng and J. Zhou, Nanoscale, 2018, 10, 6844
    DOI: 10.1039/C8NR01556B

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