Effect of heat treatment on the activity of nickel phthalocyanine catalysts for oxygen reduction reaction in acid and alkaline electrolytes

Ding Lei; Qiao Jinli

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Effect of heat treatment on the activity of nickel phthalocyanine catalysts for oxygen reduction reaction in acid and alkaline electrolytes

Ding Lei,Qiao Jinli *

College of Environmental Science and Engineering Donghua University, ShangHai 201620

*Correspondence author

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Funding: Specialized Research Fund for the Doctoral Program of Higher Education（No.20110075110001）, Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, China（No.20110927）, the National Natural Science Foundation of China（No.21173039）

Opened online: 7 February 2012

Accepted by: none

Citation: Ding Lei,Qiao Jinli.Effect of heat treatment on the activity of nickel phthalocyanine catalysts for oxygen reduction reaction in acid and alkaline electrolytes[OL]. [ 7 February 2012] http://en.paper.edu.cn/en_releasepaper/content/4460230

Effect of heat treatment on the activity of nickel phthalocyanine (NiPc) catalysts for oxygen reduction reaction (ORR) was studied in both acid and alkaline electrolytes. The catalytic activity was found to depend strongly on the electrolyte and heat treatment temperature. High ORR activity was demonstrated on 40%NiPc/C electrode in 0.1M KOH solution, and the heat-treatment of 800oC is optimal for the catalyst synthesized. Further using rotating disk electrode (RDE) measurements and Koutechy-Levich analysis, the overall electron transfer number in the catalyzed ORR on 40%NiPc/C was found to be 2.8, suggesting the catalyzed ORR proceeds via both the 2e- transfer reduction and the 3e- transfer reduction.

Keywords:Non-precious metal catalyst; nickel phthalocyanine; oxygen reduction reaction; rotating disk electrode; fule cell

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