Preparation of Pd/TiO₂/C Catalyst and Its Electrocatalytic Performance in Basic Solution for Ethanol Oxidation

Authors

Qiao-xia LI, Key laboratory of Shanghai Colleges and Universities for Electric Power Corrosion Control and Applied Electrochemistry, Shanghai University of Electric Power, Shanghai 200090, China;Follow
Yi-chao YANG, Key laboratory of Shanghai Colleges and Universities for Electric Power Corrosion Control and Applied Electrochemistry, Shanghai University of Electric Power, Shanghai 200090, China;
Ming-shuang LIU, Key laboratory of Shanghai Colleges and Universities for Electric Power Corrosion Control and Applied Electrochemistry, Shanghai University of Electric Power, Shanghai 200090, China;
Hong-min MAO, Key laboratory of Shanghai Colleges and Universities for Electric Power Corrosion Control and Applied Electrochemistry, Shanghai University of Electric Power, Shanghai 200090, China;
Qun-jie XU, Key laboratory of Shanghai Colleges and Universities for Electric Power Corrosion Control and Applied Electrochemistry, Shanghai University of Electric Power, Shanghai 200090, China;

Corresponding Author

Qiao-xia LI(liqiaoxia@shiep.edu.cn)

Abstract

Nanoparticles TiO₂ were prepared by hydrothermal method using precursor tetrabutyl titanate. The Pd/TiO₂/C catalyst was synthesized by liquid phase reducing method supported on nano TiO₂ and Vulcan carbon XC-72. The Pd/TiO₂/C catalyst was characterized by XRD, TEM, cyclic voltammetry, and chronopotentiometry. XRD confirmed the face-centered cubic structure of Pd particles, and TEM indicated that Pd particles (size 3 ~ 4 nm) dispersed uniformly on TiO₂ and carbon XC-72. The results from cyclic voltammogram and chronopotentiogram showed the higher ethanol oxidation activity and stability of Pd/TiO₂/C catalyst (20% Pd) as compared with those of Pd/C catalyst at ambient temperature and pressure in alkaline media. The improved properties in Pd/TiO₂/C catalyst (20% Pd) might mainly due to the presence of TiO₂ nanoparticles which changed the electron properties on Pd surface and increased the electrochemical surface area.

Graphical Abstract

Keywords

fuel cell, Pd/TiO2/C, ethanol oxidation, basic solution

DOI Link

https://doi.org/10.13208/j.electrochem.120929

Publication Date

2014-02-25

Online Available Date

2014-02-24

Revised Date

2013-01-21

Received Date

2012-09-29

Recommended Citation

Qiao-xia LI, Yi-chao YANG, Ming-shuang LIU, Hong-min MAO, Qun-jie XU. Preparation of Pd/TiO₂/C Catalyst and Its Electrocatalytic Performance in Basic Solution for Ethanol Oxidation[J]. Journal of Electrochemistry, 2014 , 20(1): 85-88.
DOI: 10.13208/j.electrochem.120929
Available at: https://jelectrochem.xmu.edu.cn/journal/vol20/iss1/14