Zn0.76Co0.24S/CoS2 nanowires array for efficient electrochemical splitting of water. (1st February 2016)

• Record Type: Journal Article
• Authors: Liang, Yanhui; Liu, Qian; Luo, Yonglan; Sun, Xuping; He, Yuquan; Asiri, Abdullah M.
• Is Part Of: Electrochimica acta. Volume 190(2016)
• Page Start: 360
• Page End: 364
• Publication Date: 2016-02-01
• Subjects: Zn0.76Co0.24S/CoS2 -- nanowires array -- bifunctional catalyst -- water splitting -- hydrogen economy; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2015.12.153
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: In this paper, we report the use of Zn0.76 Co0.24 S/CoS2 nanowires array on Ti mesh (Zn-Co-S/TM) topotactically derived from ZnCo2 O4 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.