Pd doped Co3O4 nanowire array as the H2O2 electroreduction catalyst

被引：35

作者：

Cheng, Kui ^{[1
]}

Yang, Fan ^{[1
]}

Xu, Yang ^{[1
]}

Cheng, Lin ^{[1
]}

Bao, Yanyan ^{[1
]}

Cao, Dianxue ^{[1
]}

Wang, Guiling ^{[1
]}

机构：

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

来源：

JOURNAL OF POWER SOURCES | 2013年 / 240卷

关键词：

Cobaltosic oxide; Nanowire arrays; Electrocatalyst; Hydrogen peroxide reduction; PEROXIDE FUEL-CELL; NICKEL FOAM CATHODE; HYDROGEN-PEROXIDE; DIRECT BOROHYDRIDE; ELECTROCATALYTIC REDUCTION; BIFUNCTIONAL CATALYST; OXIDE NANOPARTICLES; PORPHYRIN; OXIDATION; NAFION;

D O I：

10.1016/j.jpowsour.2013.04.057

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Co3O4 nanowire arrays freely standing on Ti foil (Co3O4/Ti) are prepared via a template-free growth method. Pd nanoparticles are electrochemically deposited by cyclic voltammetry method on Co3O4 nanowires to obtain a nanocomposite electrode (Pd@Co3O4/Ti). The morphology and phase structure of the Pd@Co3O4/Ti electrode are characterized by scanning electron microscope and X-ray diffraction spectrometer. The catalytic activity of H2O2 electroreduction on the Pd@Co3O4/Ti electrode in alkaline medium is evaluated by means of linear scan voltammetry and chronoamperometry. The Pd@Co3O4/Ti electrode exhibits high performance and good stability to H2O2 electroreduction with a current density of 145.8 mA cm(-2) at -0.4 V in 3.0 mol dm(-3) KOH and 0.4 mol dm(-3) H2O2 electrolyte, which outperforms the bare Co3O4 nanowire arrays without Pd doping. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：442 / 447

页数：6

共 38 条

[1]

Development and characterization of a novel carbon fiber based cathode for semi-fuel cell applications [J].