A Zn-doped Ni3S2 nanosheet array as a high-performance electrochemical water oxidation catalyst in alkaline solution. Issue 92 (3rd November 2017)

• Record Type: Journal Article
• Authors: Liu, Qin; Xie, Lisi; Liu, Zhiang; Du, Gu; Asiri, Abdullah M.; Sun, Xuping
• Is Part Of: Chemical communications. Volume 53:Issue 92(2017)
• Page Start: 12446
• Page End: 12449
• Publication Date: 2017-11-03
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c7cc06668f
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A Zn-doped Ni3 S2 nanosheet array on Ni foam (Zn-Ni3 S2 /NF) acts as a high-performance and durable electrocatalyst for the oxygen evolution reaction in 1.0 M KOH, driving a catalytic current density of 100 mA cm −2 at an overpotential of 330 mV, 90 mV less than that for Ni3 S2 /NF. Abstract : It is of high importance to design efficient electrocatalysts for the oxygen evolution reaction (OER) at alkaline pH. In this communication, we report the development of a Zn-doped Ni3 S2 nanosheet array on Ni foam (Zn-Ni3 S2 /NF) as a high-performance and durable electrocatalyst for the OER. Such Zn-Ni3 S2 /NF drives a catalytic current density of 100 mA cm −2 with the requirement of an OER overpotential of 330 mV, 90 mV less than that for Ni3 S2 /NF. Furthermore, Zn-Ni3 S2 /NF demonstrates excellent long-term electrochemical durability maintaining its activity at an overpotential of 300 mV for 20 h.