Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 6, Issue 8, Pages 9555-9559Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.8b01841
Keywords
NiWO4 nanowire array; Full water splitting; 3D electrocatalyst; High performance; Alkaline media
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Funding
- National Natural Science Foundation of China [21575137]
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It is attractive to develop an effective bifunctional electrocatalyst for full water splitting. In this Letter, we report that a NiWO4 nanowire array on a Ti mesh (NiWO4/TM) is a high-performance and stable water-splitting electrocatalyst at alkaline pH. As a 3D electrocatalyst, such a NiWO4/TM attains 20 mA cm(-2) under overpotentials of 101 mV for cathodic water reduction and 322 mV for anodic water oxidation. We also demonstrate the use of NiWO4/TM to make a two-electrode electrolyzer capable of driving 20 mA cm(-2) at a cell voltage of 1.65 V.
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