'Dissolution-reassembly' for N-doped hollow micro/meso-carbon spheres with high supercapacitor performance

查看全文 作　　者：Juan [1]Du;Lei [1]Liu;Yifeng [1]Yu;Yue [1]Zhang;Aibing [1]Chen

机构地区：[1]College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology

出　　处：《Chinese Chemical Letters》索引2019年第30卷第7期,共5页

基　　金：the National Natural Science Foundation of China(No. 21676070);Hebei One Hundred-Excellent Innovative Talent Program(Ⅲ)(No. SLRC2017034);Beijing National Laboratory for Molecular Sciences 摘　　要：Herein, we report a 'dissolution-reassembly' approach for preparation of N-doped hollow carbon spheres with mesoporous/microporous composite structure (H(Micro/Meso)CS). Basing on the compositional inhomogeneity inside the nanospheres of 3-aminophenol/formaldehyde (3-AF) polymerization, the internal 3-AF oligomer with low-molecular-weight is dissolved by acetone to form cavity. Then the dispersive 3-AF oligomer reassemble with silica oligomer as pore-forming agent and cetyltrimethyl-ammonium bromide as surfactant to form a mesoporous outer shell. In addition, the amount of acetone has a great influence on the morphology and structure of H(Micro/Meso)CS. The obtained H(Micro/Meso)CS shows uniform spherical and microporous/mesoporous shell structure and has a high specific capacity and excellent high rate capability. 关键词：Issolution-reassembly HOLLOW micro/meso-carbon spheres SUPERCAPACITOR OLIGOMER LOW-MOLECULAR-WEIGHT

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'Dissolution-reassembly' for N-doped hollow micro/meso-carbon spheres with high supercapacitor performance

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