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Issue 42, 2017
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One-step synthesis of well-structured NiS–Ni2P2S6 nanosheets on nickel foam for efficient overall water splitting

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Abstract

One-step fabrication of efficient and self-supported electrocatalysts as bifunctional electrodes for water splitting is of prime importance but still challenging. Herein, we demonstrated a facile approach for the in situ growth of NiS–Ni2P2S6 nanosheets on nickel foam (NF) (NiS–Ni2P2S6/NF) via one-step calcination at low temperature. Benefitting from the fast electron and mass transfer and the unique 3D self-supported structure as well as the synergistic effect between NiS and Ni2P2S6, the optimized NiS–Ni2P2S6/NF exhibits superior OER and HER electrocatalytic activity in 1.0 M KOH with small overpotentials of 220 mV and 140 mV to achieve the current density of 10 mA cm−2, respectively. Moreover, the as-prepared NiS–Ni2P2S6/NF could be used as both the cathode and anode in a two-electrode water splitting cell, which can deliver the current density of 10 mA cm−2 under a cell voltage of 1.64 V with satisfactory stability, implying its promising prospects in practical scale-up applications.

Graphical abstract: One-step synthesis of well-structured NiS–Ni2P2S6 nanosheets on nickel foam for efficient overall water splitting

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Publication details

The article was received on 17 Jun 2017, accepted on 29 Sep 2017 and first published on 29 Sep 2017


Article type: Communication
DOI: 10.1039/C7TA05285E
Citation: J. Mater. Chem. A, 2017,5, 22131-22136
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    One-step synthesis of well-structured NiS–Ni2P2S6 nanosheets on nickel foam for efficient overall water splitting

    X. Zhang, S. Zhang, J. Li and E. Wang, J. Mater. Chem. A, 2017, 5, 22131
    DOI: 10.1039/C7TA05285E

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