Preparation of nickel-cobalt nanowire arrays anode electro-catalyst and its application in direct urea/hydrogen peroxide fuel cell

被引：117

作者：

Guo, Fen ^{[1
]}

Cheng, Kui ^{[1
]}

Ye, Ke ^{[1
]}

Wang, Guiling ^{[1
]}

Cao, Dianxue ^{[1
]}

机构：

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

来源：

ELECTROCHIMICA ACTA | 2016年 / 199卷

基金：

黑龙江省自然科学基金; 中国博士后科学基金;

关键词：

fuel cell; urea; nickel-cobalt nanowire arrays; polycarbonate template; hydrogen peroxide; ELECTROCATALYTIC OXIDATION; UREA; METHANOL; ELECTROOXIDATION; PERFORMANCES; CU;

D O I：

10.1016/j.electacta.2016.01.215

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nickel-cobalt nanowire arrays (Ni-Co NWAs) electrode is prepared by one-step galvanostatic electrodeposition with a polycarbonate membrane as the template. By adjusting the Co proportion in the Ni and Co bath solution into 10%, the optimal Ni-Co NWAs electrode in terms of relatively lower onset potential and highest current density towards urea electro-oxidation is obtained. Its catalytic performance is investigated by constructing single direct urea/hydrogen peroxide (H2O2) fuel cell. Results show that a peak power density of 7.4 mW cm(-2) and an open circuit voltage of 0.92 V are achieved at room temperature when 9.0 mol L-1 KOH and 0.33 mol L-1 urea are used as the anolyte, H2SO4 and H2O2 as the catholyte. Additionally, the urea/H2O2 fuel cell also demonstrates excellent stability during short term duration test. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：290 / 296

页数：7

共 27 条

[1] Electrocatalytic oxidation of methanol on the nickel-cobalt modified glassy carbon electrode in alkaline medium [J].