Acta Phys. -Chim. Sin. ›› 2010, Vol. 26 ›› Issue (08): 2135-2138.doi: 10.3866/PKU.WHXB20100802

• ELECTROCHEMISTRY • Previous Articles     Next Articles

Preparation and Electrochemical Properties of Ternary Catalyst PtRuCo/C for Direct Methanol Fuel Cell

XU Qun-Jie, ZHOU Xiao-Jin, LI Qiao-Xia, LI Jin-Guang   

  1. Department of Thermal Power & Environmental Engineering, Shanghai University of Electric Power, Shanghai 200090, P. R. China
  • Received:2010-01-12 Revised:2010-03-18 Published:2010-07-23
  • Contact: XU Qun-Jie E-mail:xuqunjie@shiep.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (20873031), Innovation Program of Shanghai Municipal Education Commission, China (10ZZ116) and Key Project of Shanghai Committee of Science and Technology, China (09230501400).

Abstract:

Using sodium citrate as a stabilizer, sodium borohydride as a reductant, 20%(w) Pt60Ru30Co10/C catalyst was prepared by impregnating reduction. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) were used to characterize the catalysts. We studied the catalytic activity and stability in a methanol solution at different pH values and pre-adsorbed CO monolayer stripping was used to investigate its anti-poisoning ability. The results showed that PtRuCo/C had the highest catalytic activity toward methanol at pH 8, and its catalytic activity and stability were much higher than that of commercial Pt50Ru50/C. Compared with Pt50Ru50/C, the pre-adsorbed CO monolayer oxidation potential showed a significant negative shift.

Key words: Impregnating reduction method, PtRuCo/C, Methanol oxidation, Stability

MSC2000: 

  • O646