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Issue 10, 2019
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Accelerated electrocatalytic hydrogen evolution on non-noble metal containing trinickel nitride by introduction of vanadium nitride

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Abstract

Trinickel nitride as a kind of promising hydrogen evolution reaction (HER) electrocatalyst has attracted much attention in recent years due to its high electrical conductivity and low cost. Herein, we designed and synthesized a novel and efficient Ni3N@VN–NF composite by nitriding treatment of a NiV-LDH precursor. The obtained electrode exhibits superior performances including a much lower overpotential of 56 mV at 10 mA cm−2 and Tafel value of 47 mV dec−1 compared to pure Ni3N–NF and VN–NF electrodes. The Ni3N@VN–NF composite as a cathode and a conventional OER electrode NiFe-LDH–NF as an anode were combined to form a complete water-splitting system. The voltage at 10 mA cm−2 is about 1.55 V, which is superior to the voltage value reported in many literature studies. In addition, the two-electrode system exhibits excellent durability after as long as 50 hours of operation.

Graphical abstract: Accelerated electrocatalytic hydrogen evolution on non-noble metal containing trinickel nitride by introduction of vanadium nitride

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Publication details

The article was received on 13 Dec 2018, accepted on 25 Jan 2019 and first published on 28 Jan 2019


Article type: Paper
DOI: 10.1039/C8TA12043A
Citation: J. Mater. Chem. A, 2019,7, 5513-5521

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    Accelerated electrocatalytic hydrogen evolution on non-noble metal containing trinickel nitride by introduction of vanadium nitride

    P. Zhou, D. Xing, Y. Liu, Z. Wang, P. Wang, Z. Zheng, X. Qin, X. Zhang, Y. Dai and B. Huang, J. Mater. Chem. A, 2019, 7, 5513
    DOI: 10.1039/C8TA12043A

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