Highly Active Nickel Nanoparticles Supported on TiO2 Nanotube Electrodes for Methanol Electrooxidation

被引：73

作者：

Hosseini, M. G. ^{[1
]}

Momeni, M. M. ^{[1
]}

Faraji, M. ^{[1
]}

机构：

[1] Univ Tabriz, Electrochem Res Lab, Dept Phys Chem, Fac Chem, Tabriz, Iran

来源：

ELECTROANALYSIS | 2010年 / 22卷 / 22期

关键词：

Methanol; Ni/TiO2/Ti Electrode; Cyclic voltammetry; Electrocatalysis; ELECTROCATALYTIC OXIDATION; SOL-GEL; CARBON; TITANIUM; PLATINUM; CATALYST;

D O I：

10.1002/elan.200900620

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Nickel nanoparticles/TiO2 nanotubes/Ti electrodes were prepared by galvanic deposition of nickel nanoparticles on the TiO2 nanotubes layer on titanium substrates. Titanium oxide nanotubes were fabricated by anodizing titanium foil in a DMSO fluoride-containing electrolyte. The morphology and surface characteristics of titanium dioxide nanotubes and Ni/TiO2/Ti electrodes were investigated using scanning electron microscopy and energy-dispersive Xray spectroscopy, respectively. The results indicated that nickel nanoparticles were homogeneously deposited on the surface of TiO2 nanotubes. The electrocatalytic behaviour of nickel nanoparticles/TiO2/Ti electrodes for the methanol electrooxidation was studied by electrochemical impedance spectroscopy, cyclic voltammetry, differential pulse voltammetry and chronoamperometry methods. The results showed that Ni/TiO2/Ti electrodes exhibit a considerably higher electrocatalytic activity toward the oxidation of methanol.

引用

页码：2620 / 2625

页数：6

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