Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (5): 994.

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Preparation of Pt-Pd/MWCNTs and Pd/MWCNTs Catalysts by Hydrothermal Synthesis in Room Temperature Ionic Liquids

YANG Guo-Kai, DING Ke-Qiang*   

  1. College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050016, China
  • Received:2009-10-26 Online:2010-05-10 Published:2010-05-10
  • Contact: DING Ke-Qiang. E-mail: dkeqiang@263.net
  • Supported by:

    河北省留学回国人员择优资助项目(批准号: 106115)、河北省教育厅重点项目(批准号: ZH2007106)和河北师范大学科学研究重点基金(批准号: L2008Z08)资助.

Abstract:

The Pt-Pd/MWCNTs and Pd/MWCNTs were successfully prepared by a hydrothermal synthesis in which room temperature ionic liquid(RTILs) of EMIBF4 was used as solvents. XRD and EDS analysis strongly demonstrated the formation of Pt-Pd and Pd nanoparticles on the surface of MWCNTs. TEM images not only proved the preparation of Pt-Pd and Pd nanoparticles, but also illustrated that the average particle diameter of the obtained nanoparticles is close to 4 nm. CV and EIS tests showed in alkaline electrolyte, ethanol oxidation reaction(EOR) could proceed on the obtained catalysts modified GC electrode, also, except for the enhanced oxidation peak current, the potential onset of EOR was greatly negatively shifted for about 200 mV on the Pt-Pd/MWCNTs modified GC electrode compared with the case on the Pd/MWCNTs modified GC electrode.

Key words: Catalyst; Pt-Pd/MWCNTs; Pd/MWCNTs; Ethanol oxidation reaction(EOR); Ionic liquid

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