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Citation: YANG Qiuming, WU Bing, GAO Ying. Effect of Surfactants on the Preparation of Carbon-supported PdAu Catalyst by Microwave-assisted Reduction and Electrooxidation of Formic Acid[J]. Chinese Journal of Applied Chemistry, ;2012, 29(10): 1189-1193. doi: 10.3724/SP.J.1095.2012.00520 shu

Effect of Surfactants on the Preparation of Carbon-supported PdAu Catalyst by Microwave-assisted Reduction and Electrooxidation of Formic Acid

YANG Qiuming ^a ,
WU Bing ^a,b ,
GAO Ying ^a,b,,

1.
a College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China;
2.
b Laboratory of Design and Synthesis of Functional Materials and Green Catalysis, Harbin 150025, China

Corresponding author: GAO Ying,
Received Date: 24 November 2011
Available Online: 14 December 2011
Fund Project: 黑龙江省自然科学基金(B200905) (B200905)哈尔滨市科技局创新人才专项基金(2010RFXXG018) (2010RFXXG018)黑龙江省高校科技创新团队建设计划(2011TD010)资助项目 (2011TD010)

The carbon-supported PdAu(PdAu/C) catalysts are prepared using surfactants of sodium dodecylbenzene sulfonate and P123 via a microwave-assisted reduction method.The results showed that Pd and Au could form alloys and altered the electronic structure of the catalysts' surfaces.The activity and stability of the catalysts were greatly enhanced by using surfactants in the their preparation as the surfactants can improve the dispersions of metallic particles on the catalysts' surface as well as increase the proportion of highly active crystal planes.The peak current density on PdAu/C prepared in nonionic surfactant P123 was as high as 196.8×10^-3 A/cm² and the pseudo-steady current density after 4030 s was 21.6×10^-3 A/cm².The strong CO adsorption by the noble metals on the catalyst remained remained as the major reason for the decrease of the oxidation current.
- microwave-assisted reduction,
- Pd,
- Au,
- electrochemical catalysis,
- fomic acid,
- surfactant
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