烟草基活性炭材料用于电化学超级电容器(英文)  被引量:14

An activated carbon derived from tobacco waste for use as a supercapacitor electrode material

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作  者:陈辉 郭燕川[2] 王富[3] 王刚[1] 祁佩荣 郭旭虹[1,4] 代斌[1] 于锋[1] CHEN Hui;GUO Yan-chuan;WANG Fu;WANG Gang;QI Pei-rong;GUO Xu-hong;DAI Bin;YU Feng(Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China;Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China;State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China)

机构地区:[1]石河子大学化学化工学院,新疆兵团绿色化工过程重点实验室,新疆石河子832003 [2]中国科学院理化技术研究所,北京100190 [3]中国科学院新疆理化技术研究所,新疆乌鲁木齐830011 [4]华东理工大学化工学院化学工程联合国家重点实验室,上海200237

出  处:《新型炭材料》2017年第6期592-599,共8页New Carbon Materials

基  金:Doctor Foundation of Bingtuan(2014BB004);Program of Science and Technology Innovation Team in Bingtuan(2015BD003);Program for Changjiang Scholars,Innovative Research Team in University(IRT_15R46)~~

摘  要:烟草基活性炭(TAC)成功制备并用于超级电容器电极材料。由烟草出发,通过一步水热法,进而热解得到烟草基多孔碳(TPC),比表面积为111.25 m^2·g^(-1),孔容为0.11 cm^3·g^(-1),平均孔直径1.77 nm,在0.5 A·g^(-1)电流下,比电容为37 F·g^(-1)。通过碱活化得到TAC,具有较高的比表面积1297.6 m^2·g^(-1),大的孔容0.52 cm^3·g^(-1),和平均孔直径0.52 nm。在0.5 A·g^(-1)电流下,比电容可达148 F·g^(-1)。两电极体系下具有120 F·g^(-1)的比电容值,在1 A·g^(-1)下经过9 000次循环后,容量没有损失。A tobacco-derived activated carbon(TAC)was prepared from tobacco waste using KOH activation with a KOH/tobacco carbon mass ratio of3at800℃for1h,and was used as an electrode material for a supercapacitor.The tobacco waste was hydrothermally treated in a10%(v/v)HCl solution to remove metallic impurities and carbonized before activation.The carbonized tobacco has a low Brunauer Emmett Teller(BET)surface area of111.25m2·g1,a pore volume of0.11cm3·g-1,an average pore diameter of1.77nm and a specific capacitance of37F·g-1at a current density of0.5A·g-1.The TAC has a high BET surface area of1297.6m2·g-1,a large pore volume of0.52cm3·g-1,and a pore size distribution with a median pore size of0.52nm.It has a specific capacitance of148F·g1at a current density of0.5A·g1in a6M KOH electrolyte,and an excellent cycling stability with no capacitance fade after9000cycles at a current density of1A·g-1.

关 键 词:超级电容器 活性炭 烟草 能量转化与储存 

分 类 号:TM53[电气工程—电器] TQ424.1[化学工程]

 

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