Chinese Journal of Applied Chemistry

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Preparation of Carbon Nanotubes Supported Pd-Au Catalyst and Their Electrocatalytic Activity for Formic Acid Oxidation

JI Yigang1, YIN Yajing1, GUO Qi1, SI Nan1, MA Juan2*, LU Tianhon3   

  1. (1.Department of Chemistry,Jiangsu Second Normal University,Nanjing 210013,China;
    2.Kunshan Drug Supervision and Inspection Institute,Kunshan 215300,China;
    3.Jiangsu Key Laboratory of New Power Batteries,School of Chemistry and
    Material Science,Nanjing Normal University,Nanjing 210097,China)
  • Received:2013-05-21 Revised:2013-07-02 Published:2014-01-10 Online:2014-01-10
  • Supported by:

    Supported by Natural Science Foundation of Colleges and Universities in Jiangsu Province(No.10KJD150007) and “Eleventh FiveYear Plan Project” of Jiangsu Second Normal University(No.JSjy2008qz03)

Abstract: Naphthalen-1-ylmethylphosphonic acid was modified on multiwall carbon nanotube(MWCNT) by the π-π stacking interaction. Then, the Pd catalyst was supported on it. Furthermore, the MWCNT supported Pd-Au(Pd-Au/MWCNT) catalyst was facially prepared by the replacement reaction between Pd nanoparticles and HAuCl4. Transmission electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy measurements showed that non-alloyed Pd-Au nanoparticles were highly dispersed on the surface of MWCNT. Cyclic voltammetry and chronoamperometric measurements indicated that the Pd-Au/MWCNT catalyst exhibited better electrocatalytic activity and stability for formic acid oxidation than that of the Pd/MWCNT catalyst.

Key words: direct formic acid fuel cells, carbon nanotubes, catalyst, formic acid oxidation

CLC Number: