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发布时间：2019-03-12

论文类型：期刊论文

发表时间：2018-08-10

发表刊物：ELECTROCHIMICA ACTA

收录刊物：SCIE

卷号：281

页面范围：60-68

ISSN号：0013-4686

关键字：Composite plating; Nano-SiO2; Water splitting; Electrodes; Alloy films

摘要：The electrochemical splitting of water requires efficient functional electrodes. Herein, we report the fabrication of electrocatalyst consisted of an electrodeposited NiFeP alloy film which was composite plated with nano-SiO2 on nickel foam. The structure and morphology of the film were characterized by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results showed that the surface area of this NiFeP-SiO2 co-deposition alloy film can be significantly increased after electrochemical etching in a KOH solution. The water splitting properties of the alloy film were evaluated using electrochemistry. By using the NiFeP-SiO2/NF(Etched) as a bifunctional electrode, total water splitting has been demonstrated in a two-electrode cell with a current density of 10 mAcm(-2) at an applied voltage of 1.57 V, which exhibited enhanced water splitting activity in comparison to the analogue cell using the pristine NiFeP/NF electrode. (c) 2018 Elsevier Ltd. All rights reserved.