期刊
ELECTROCHIMICA ACTA
卷 190, 期 -, 页码 360-364出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2015.12.153
关键词
Zn0.76Co0.24S/CoS2; nanowires array; bifunctional catalyst; water splitting; hydrogen economy
In this paper, we report the use of Zn0.76Co0.24S/CoS2 nanowires array on Ti mesh (Zn-Co-S/TM) topotactically derived from ZnCo2O4 nanowires array precursor as a durable and efficient bifunctional hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) catalyst in strongly alkaline media. This Zn-Co-S/TM electrode drives 20 mA cm (2) at 238 mV HER overpotential and 20 mA cm (2) at 330 mV OER overpotential. The corresponding two-electrode alkaline water-splitting system achieves 10 mA cm (2) at a cell voltage of 1.66 V. (C) 2015 Elsevier Ltd. All rights reserved.
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