A biomass carbon material with microtubule bundling and natural O-doping derived from goldenberry calyx and its electrochemical performance in supercapacitor  

作　　者：Yang Liu Mengyi Zhang Liqiu Wang Yajuan Hou Chenxiao Guo Haiying Xin Shuang Xu 

机构地区：[1]College of Environmental and Chemical Engineering,Yanshan University,Qinhuangdao 066004,China [2]College of Pharmacy,State Key Laboratory of Medicinal Chemical Biology,Nankai University,Tianjin 300350,China [3]Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education),College of Chemistry,Nankai University,Tianjin 300071,China

出　　处：《Chinese Chemical Letters》2020年第3期805-808,共4页中国化学快报（英文版）

基　　金：Hebei Natural Science Foundation(No.B2015203259);Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education),College of Chemistry,Nankai University for providing the financial support for this project。

摘　　要：A promising biomass carbon material,manufactured by the carbonation of Physalis peruviana L.calyx at 700℃,is presented in this wo rk.Morphology characterization shows that the carbon material possesses long microtubule bundling and above 30%natural O-atom component on the surface.After KOH chemical etching,the materials maintain the oxygen content but exhibit more micropores and higher specific surface area up to 1732.6 m^2/g.Using as an electrode material for supercapacitor,the active carbon material exhibits high specific capacitance up to 339.7 F/g at 0.5 A/g in 3 mol/L KOH aqueous solution through three-electrode system.The active carbon material also exhibits excellent cycling stability(97%retention)by 10,000 cycles at 10 A/g.The outstanding electrochemical performances are attributing to the unique long microtubule bundling with much more pores and the abundant Oelement on the surface.This biomass carbon material with excellent electrochemical properties could be a useful material for multiple applications.

关 键 词：Biomass CARBON material Physalis peruviana L.calyx CARBON MICROTUBULE BUNDLING High O-doping SUPERCAPACITOR 

分 类 号：TQ127.11[化学工程—无机化工] TM53[电气工程—电器]