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ZIF-8@Polyvinylpyrrolidone Nanocomposites Based N-Doped Porous Carbon for Highly Efficient Oxygen Reduction Reaction in Alkaline Solution
作者:Min Jiang*, Xueping Cao, Ping Liu, Tongping Zhang, and Jianming Zhang*
关键字:ZIF-8
论文来源:期刊
具体来源:Journal of The Electrochemical Society
发表时间:2016年
As novel N-doped carbon precursors, zeolitic imidazolate framework-8@polyvinyl pyrrolidone (ZIF-8@PVP) composites were designed and synthesized. Direct carbonization of ZIF-8@PVP composites at a high temperature produced the nitrogen-doped porous carbon materials (named as CP1000). And the electrocatalytic abilities of the corresponding carbonized products toward oxygen reduction reaction in alkaline solution were investigated. In comparison with the carbonized product of pure ZIF-8 (named as C1000), CP1000 possesses the higher specific surface area and total pore volume. By adjusting the initial dosage of PVP, three kinds of CP1000 with different size and N content were prepared. It was found that the high specific surface area and favorable quaternary-N species in CP1000 sample played an active role in catalyzing oxygen reduction reaction (ORR).