A facile synthesis of palladium nanoparticles supported on functional carbon nanotubes and its novel catalysis for ethanol electrooxidation

被引：58

作者：

Chen, Xiao-mei ^{[1
,2
]}

Lin, Zhi-jie ^{[1
,2
]}

jia, Tian-tian ^{[1
,2
]}

Cai, Zhi-min ^{[1
,2
]}

Huang, Xiao-li ^{[1
,2
]}

Jiang, Ya-qi ^{[1
,2
]}

Chen, Xi ^{[1
,2
,3
]}

Chen, Guo-nan ^{[4
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, Minist Educ, Dept Chem, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Coll Chem & Chem Engn, Minist Educ, Key Lab Analyt Sci, Xiamen 361005, Peoples R China

[3] Xiamen Univ, State Key Lab Marine Environm Sci, Xiamen 361005, Peoples R China

[4] Fuzhou Univ, Key Lab Anal & Detect Technol Food Safety, Minist Educ, Dept Chem, Fuzhou 350002, Peoples R China

来源：

ANALYTICA CHIMICA ACTA | 2009年 / 650卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Electrocatalyst; Palladium nanoparticles; Carbon nanotubes; Ethanol; Alkaline solution; METHANOL FUEL-CELL; PLATINUM CATALYSTS; ALKALINE MEDIA; OXIDATION; ELECTROCATALYSTS; MICROSPHERES; PERFORMANCE; ELECTRODE; OXIDE;

D O I：

10.1016/j.aca.2009.02.035

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this study, a novel material, palladium nanoparticles-carboxylic functional carbon nanotubes (PdNPs-CFCNTs), based on PdNPs supported on CFCNTs was synthesized by a facile spontaneous redox method. The material reveals high electrochemical activity and excellent catalytic characteristic for alcohol electrooxidation on a glassy carbon electrode (GCE) in an alkaline medium. The preparation mechanism was studied by the galvanic cell effect between PdCl(4)(2-) and functional defect sites on CFCNTs. Results from UV-visible absorption spectroscopy and electrochemical impedance spectroscopy revealed that the reduction of PdCl(4)(2-) to metallic Pd was successfully achieved. Morphologies of PdNPs supporting on CFCNTs (PdNPs-CFCNTs) were also characterized by transmission electron micrograph. PdNPs-CFCNTs with the best electrocatalytic characteristics were obtained under the condition as: the weight ratio of Pd to CFCNTs was kept at 2: 1, the temperature was kept at 70 degrees C in the synthesis, and the scan rate of the applied potential was selected at 60 mV s(-1). The results indicate that PdNPs-CFCNTs could be a great potential material in direct ethanol fuel cells and ethanol sensors. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：54 / 58

页数：5

共 30 条

[1] Catalysts for direct ethanol fuel cells [J].