文献类型：期刊文献

英文题名：Embedding Co3O4 nanoparticles in SBA-15 supported carbon nanomembrane for advanced supercapacitor materials

作者：Zhi, Jian[1]; Deng, Sheng[1]; Zhang, Yuxuan[1]; Wang, Youfu[1]; Hu, Aiguo[1]

机构：[1] Shanghai Key Laboratory of Advanced Polymeric Materials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China

年份：2013

卷号：1

期号：9

起止页码：3171

外文期刊名：Journal of Materials Chemistry A

收录：EI(收录号：20131816289537)

语种：英文

外文关键词：Electrolytes - Nanorods - Supercapacitor - Electrodes - Self assembled monolayers - Porous materials - Carbon - Carbonization - Cyclization

摘要：A three dimensional porous carbon nanomembrane (CNM), silica-supported CNM (SS-CNM), is developed by formation of a self-assembled monolayer of an enediyne compound on the surface of mesoporous silica (SBA-15) followed by Bergman cyclization and carbonization. The SS-CNM is applied as a conductive support for the electroactive material Co3O4 to fabricate advanced supercapacitors. A large fraction of Co3O4 clusters (66% of total weight) are impregnated in the SS-CNM host to form regularly packed nanorods with diameters of 7 nm. The specific capacitance of the supercapacitor electrode material reaches 1086 F g-1 (1645 F g-1 based on Co3O4) with aqueous electrolyte. This extraordinary high performance of the electrode material is attributed to the unique pore structure of the SS-CNM support that enhances the use of active material and shortens the transport path of ions and electrons. ? 2013 The Royal Society of Chemistry.