Preparation of nickel nanowire arrays electrode for urea electrooxidation in alkaline medium

被引：150

作者：

Guo, Fen ^{[1
]}

Ye, Ke ^{[1
]}

Cheng, Kui ^{[1
]}

Wang, Guiling ^{[1
]}

Cao, Dianxue ^{[1
]}

机构：

[1] Harbin Engn Univ, Key Lab Superlight Mat & Surface Technol, Minist Educ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2015年 / 278卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Nickel nanowire arrays; Polycarbonate template; Urea; Electra-oxidation; Fuel cell; CARBON-FIBER CLOTH; CATALYST; OXIDATION; PERFORMANCE; ETHANOL; MECHANISM; ANODE;

D O I：

10.1016/j.jpowsour.2014.12.125

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fully metallic nickel nanowire arrays (NWAs) electrode is prepared by electrodepositing nickel within the pores and over-plating on the surface of polycarbonate template (PCT) with subsequent dissolution of the template in dichloromethane. The as-prepared electrode is characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Urea electro-oxidation reaction in KOH solution on the nickel NWAs electrode is investigated by cyclic voltammetry (CV), chronoamperometry (CA) and electrochemical impedance spectroscopy (EIS) tests. The results show that the nickel NWAs electrode achieves an onset oxidation potential of 0.25 V (vs. Ag/AgCl) and a peak current density of 160 mA cm(-2) in 5 mol L-1 KOH and 033 mol L-1 urea accompanied with considerable stability. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：562 / 568

页数：7

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