Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6611069 | Electrochimica Acta | 2015 | 7 Pages |
Abstract
In this paper, RuO2-SnO2 binary oxides were prepared using a hydrothermal approach and added to Vulcan XC-72 carbon black as new support material for Pd. The X-ray diffraction, Transmission electron microscopy and X-ray photoelectronic spectra results show that the addition of binary oxides leads to the formation of (Ru,Sn)O2 solid solution in Pd/C catalyst and reduces the particle size of Pd particles due to the anchoring effect. In addition, the electrochemical CO-striping measurement reveals that the Pd/RuO2-SnO2/C catalyst exhibits the largest electrochemical active surface and the best CO tolerance. Moreover, cyclic voltammetry and chronoamperometry tests demonstrate that the Pd/RuO2-SnO2/C catalyst possesses a much higher specific activity (4.4Â mAÂ cmâ2) than that of the Pd/C catalyst (3.2Â mAÂ cmâ2) towards ethylene glycol electrooxidation in alkaline media, and better stability as well. These results support the suitability of Pd/RuO2-SnO2/C catalyst developed in this work as a promising candidate for direct alcohol fuel cells (DAFCs) application.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Wenliang Li, Yiyin Huang, Dian Tang, Teng Zhang, Yaobing Wang,