【摘 要】
：
A new strategy to fabricate oxygen-promoted Cu,N co-doped carbon (OP-CuN@C) composites is reported. The strategy consists of only two simple steps: chemical polymerization and high temperature carbonization. Electrochemical measurements were conducted to
【机 构】
：
Hubei Key Laboratory of Fuel Cell,Wuhan University of Technology, Wuhan 430070, China;State Key Labo
【出 处】
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武汉理工大学学报（材料科学版）（英文版）
论文部分内容阅读
A new strategy to fabricate oxygen-promoted Cu,N co-doped carbon (OP-CuN@C) composites is reported. The strategy consists of only two simple steps: chemical polymerization and high temperature carbonization. Electrochemical measurements were conducted to investigate the catalytic activity and mechanism of ORR on the resulting samples. All the electrochemical results indicate that OP-CuN@C exhibits the best ORR catalytic activity. The ORR onset potential of OP-CuN@C is slightly lower than that of commercial Pt/C catalyst. The good performance is attributed to the large specific surface area, high content of heteroatoms (pyridinic, graphitic nitrogen, and oxygen atom) and synergistic effect between divalent copper and nitrogen dopant.
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