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Issue 3, 2018
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Interface engineering of the Ni(OH)2–Ni3N nanoarray heterostructure for the alkaline hydrogen evolution reaction

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Abstract

It is highly attractive but challenging to design and develop noble-metal-free catalysts with outstanding electrocatalytic activity for the hydrogen evolution reaction (HER) in alkaline media. In this work, we demonstrate the development of Ni(OH)2–Ni3N nanoarrays on Ti mesh (Ni(OH)2–Ni3N/TM) as a three-dimensional (3D) HER catalyst in alkaline solutions. Due to the heterostructure from interface engineering, Ni(OH)2–Ni3N/TM shows excellent alkaline HER activity only requiring an overpotential of 72 mV to deliver the current density of 20 mA cm−2 in 1.0 M KOH. Such an electrocatalyst also exhibits long-term electrochemical durability maintaining its activity for at least 25 h.

Graphical abstract: Interface engineering of the Ni(OH)2–Ni3N nanoarray heterostructure for the alkaline hydrogen evolution reaction

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Publication details

The article was received on 10 Oct 2017, accepted on 14 Dec 2017 and first published on 14 Dec 2017


Article type: Communication
DOI: 10.1039/C7TA08907D
Citation: J. Mater. Chem. A, 2018,6, 833-836
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    Interface engineering of the Ni(OH)2–Ni3N nanoarray heterostructure for the alkaline hydrogen evolution reaction

    M. Gao, L. Chen, Z. Zhang, X. Sun and S. Zhang, J. Mater. Chem. A, 2018, 6, 833
    DOI: 10.1039/C7TA08907D

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