Acta Phys. -Chim. Sin. ›› 2003, Vol. 19 ›› Issue (04): 380-384.doi: 10.3866/PKU.WHXB20030422

• Note • Previous Articles    

Influence of Methanol on the Kinetics of Oxygen Reduction on Pt/C and CoPcTc/C

Li Xu-Guang;Han Fei;Xing Wei;Tang Ya-Wen;Lu Tian-Hong   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022; College of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097
  • Received:2002-07-10 Revised:2002-11-25 Published:2003-04-15
  • Contact: Lu Tian-Hong E-mail:tianhonglu@263.net

Abstract: The influences of methanol on the performances of Pt/C and CoPcTc(cobalt of tetracarboxyl phthalocyanine)/C heat-treated at 800 ℃ for oxygen reduction reaction(ORR) were studied and compared. The results showed that for Pt/C electrocatalyst methanol oxidation and ORR occurred with no apparent interaction above 0.64 V and below 0.18 V vs SCE. But in the range of 0.18 to 0.64 V, methanol adversely affects the performance of Pt/C for ORR. The methanol had no effect on the performance of CoPcTc/C heat-treated at 800 ℃ for ORR. Thus CoPcTc/C heat-treated at 800 ℃ is a promising catalyst for ORR with higher activity and good methanol-tolerant ability.

Key words: Pt/C, CoPcTc(cobalt of tetracarboxyl phthalocyanine)/C, Oxygen reduction, Electrocatalyst, Methanol-tolerant