文献类型：期刊文献

英文题名：Controlled Synthesis of Ultrathin Hollow Mesoporous Carbon Nanospheres for Supercapacitor Applications

作者：Dai, Yihui[1];Jiang, Hao[1];Hu, Yanjie[1];Fu, Yao[1];Li, Chunzhong[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

年份：2014

卷号：53

期号：8

起止页码：3125

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20141017428922);WOS:【SCI-EXPANDED(收录号:WOS:000332144500032)】；

基金：This work was supported by the National Natural Science Foundation of China (21206043, 21236003, 21371057), the Basic Research Program of Shanghai (13NM1400801), the Shanghai Pujiang Program (12PJ1401900), Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Carbon - Nanospheres - Supercapacitor

摘要：Ultrathin, uniform and monodisperse hollow mesoporous carbon nanospheres (HMCNs) with a thickness of similar to 3.8 nm have been synthesized. The obtained HMCNs have a high specific surface area (568 m(2) g(-1)), large pore volume (1.63 cm(3) g(-1)), and highly accessible mesopores (similar to 9.1 nm). Notably, we realized precise control of the shell thickness in the range of ultrathin size (<10 nm). When applied as supercapacitor electrodes, the HMCNs demonstrate impressive capacitive properties, such as high specific capacitance (253 F g(-1)), excellent rate capability (111 F g(-1) at 60 A g(-1)) and outstanding cycling stability (only 3.8% loss after 5000 cycles). The results suggest that the unique structure of HMCNs can allow high rate electrolyte infiltration and rapid ion diffusion. The present findings push forward the development of carbon materials, exhibiting huge potential for applications in energy storage fields.