Citation: Yu Jun Si, Chang Guo Chen, Wei Yin, Hui Cai. Electrocatalytic activity of non-precious metal catalyst Co-N/C toward oxygen reduction reaction[J]. Chinese Chemical Letters, ;2010, 21(8): 983-986. doi: 10.1016/j.cclet.2010.03.030 shu

Electrocatalytic activity of non-precious metal catalyst Co-N/C toward oxygen reduction reaction

Yu Jun Si ^a,b, ,
Chang Guo Chen ^a,c ,
Wei Yin ^a ,
Hui Cai ^a

a College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China;
b College of Chemistry and Pharmaceutical Engineering, Sichuan University of Science and Engineering, Zigong 643000, China;
c The Key Laboratory for the Exploitation of Southwest Resources and Environmental Disaster Control Engineering under Ministry of Education, Chongqing University, Chongqing 400044, China

Received Date: 25 December 2009

Fund Project: This work was funded by the Third Stage Training of "211 Project" (No. S-09103) of China and Natural Science Foundation Project of Chongqing (No. CSTC2009BB6213).

Metallic cobalt was deposited on acetylene black to synthesize a composite Co/C by chemical reduction method.A platinum-free electrocatalyst Co-N/C (8 0 0) for oxygen reduction reaction (ORR) was synthesized by mixing the composite Co/C with urea and heat-treating at 800℃.The results from linear sweep voltammograms indicated that the Co-N/C (8 0 0) is active to ORR.The β-Co and cobalt oxides are not the active site of the catalyst Co-N/C.However,the existence of cobalt facilitated the modification of nitrogen to carbon black and led to the formation of active site of catalyst Co-N/C (8 0 0).
- Oxygen reduction reaction,
- Electrocatalyst,
- Non-precious metal,
- Active site
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