What are the practical limits for the specific surface area and capacitance of bulk sp^2 carbon materials?

查看全文 作　　者：Yanhong [1,2,3]Lu;Guankui [2,3]Long;Long [2,3]Zhang;Tengfei [2,3]Zhang;Mingtao [2,3]Zhang;Fan [2,3]Zhang;Yang [2,3]Yang;Yanfeng [2,3]Ma;Yongsheng [2,3]Chen

机构地区：[1]School of Chemistry & Material Science, Langfang Teachers University;[2]Key Laboratory of Functional Polymer Materials and Center for Nanoscale Science and Technology;[3]Institute of Polymer Chemistry, College of Chemistry, Nankai University

出　　处：《Science China Chemistry》索引2016年第59卷第2期,共6页

基　　金：supported by the National Basic Research Program of China(2012CB933401);the National Natural Science Foundation of China(51472124;51273093;21374050);the Natural Science Foundation of Tianjin(13RCGFGX01121);Science Research Project of Langfang Teachers University(LSLB201401) 摘　　要：The possible practical limits for the specific surface area and capacitance performance of bulk sp^2 carbon materials were investigated experimentally and theoretically using a variety of carbon materials. We find the limit for the specific surface area to be 3500–3700 m^2 g^(-1), and based on this, the corresponding best capacitance was predicted for various electrolyte systems. A model using an effective ionic diameter for the electrolyte ions was proposed and used to calculate the theoretical capacitance. A linear dependence of experimental capacitance versus effective specific surface area of various sp^2 carbon materials was obtained for all studied ionic liquid, organic and aqueous electrolyte systems. Furthermore, excellent agreement between the theoretical and experimental capacitance was observed for all the tested sp^2 carbon materials in these electrolyte systems, indicating that this model can be applied widely in the evaluation of various carbon materials for supercapacitors. 关键词：电容性能比表面积碳材料 SP 体积离子液体超级电容器电解质

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What are the practical limits for the specific surface area and capacitance of bulk sp^2 carbon materials?

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