Nanoporous Sulfur-Doped Copper Oxide (Cu2OxS1–x) for Overall Water Splitting

• DOI: 10.1021/acsami.7b16280
• Publication Date: 2017-12-21T14:30:03Z
• Authors: Xiaolin Zhang; Xiaoqiang Cui; Yuanhui Sun; Kun Qi; Zhao Jin; Shuting Wei; Weiwei Li; Lijun Zhang; Weitao Zheng
• Keywords: Nanoporous; Copper oxide

Developing active and bifunctional noble metal-free electrocatalysts is crucial for both the oxygen evolution reaction (OER) hydrogen (HER) in full water splitting process. A ternary nanoporous sulfur-doped copper oxide (Cu2OxS1-x) was successfully synthesized on Cu foam. The obtained Cu2OxS1-x/Cu shows robust electrocatalytic activity toward HER with a low overpotential of 40 mV at 10 mA cm-2 Tafel slope 68 dec-1 exhibits long-term stability acid solution. Moreover, Cu2OxS1-x excellent OER, HER, overall as catalyst 1.0 M KOH electrolyte. sulfur doping strategy implemented here can greatly improve catalytic performance acidic alkaline electrolyzers presents an efficient splitting.