Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 8, Issue 32, Pages 12063-12071Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.0c03263
Keywords
nanowires heterostructure; N-doped-graphene; catalyst; water splitting; large current density
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Funding
- National Natural Science Foundation of China [21872040]
- Hundred Talents Program of Guangxi Universities
- Excellent Scholars and Innovation Team of Guangxi Universities
- Open Project of Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology [2019K004]
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Developing a highly effective and durable bifunc- tional non-noble catalyst is necessary for water electrolysis. In this work, we synthesize the N-doped carbon-coated Ni-MoO2 nanowire heterostructure catalyst anchored on nickel foam for boosting the hydrogen and oxygen evolution reaction (HER and OER). Electrochemical results indicate that it exhibits low overpotentials for HER (50 and 304 mV) and OER (240 and 400 mV) at +/- 10 and +/- 2000 mA cm(-2). Furthermore, it can keep for 340 h under a multicurrent-process condition (10-1500 mA cm(-2)) as a cathode and anode without obvious attenuation. The outstanding performance could be ascribed to the heterostructure existing in Ni and MoO2, N-doped-carbon coating structure, and nanowire architecture anchored on nickel foam. This work could provide an industrially promising, cheap, and green method for hydrogen production.
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