期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 5, 期 42, 页码 22131-22136出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ta05285e
关键词
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资金
- National Natural Science Foundation of China [21427811]
- MOST, China [2016YFA0203200, 2016YFA0201300]
- Youth Innovation Promotion Association CAS [2016208]
- Jilin province science and technology development plan project [20170101194JC]
- national key research and development program of China
- ministry of science and technology of China [2013YQ170585]
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.
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