摘要
采用烟煤、椰壳为原料制备活性炭,活化剂为KOH,活化温度为800℃。活性炭的结构和形貌采用N2吸附、扫描电子显微镜(SEM)进行表征,并以其作为超级电容器电极材料进行电化学性能测试,包括恒流充放电、循环伏安和交流阻抗测试。结果表明:煤和椰壳共活化制备活性炭具有一定的协同作用,所制备的活性炭具有高的比表面积(682 m2/g),比电容高达198 F/g,并且具有优良的充放电可逆性以及低的阻抗。
The activated carbon materials used for supercapacitor electrode were successfully prepared at 800℃ with coal and coconut shell being used as the raw materials and KOH as the activating agent.The structure and morphology of the prepared activated carbon materials were characterized by N2adsorption and scanning electron microscope(SEM).The electrochemical properties of supercapacitors with the activated carbon materials as electrodes were conducted by using galvanostatic charge-discharge,cyclic voltammetric and electrochemical impedance techniques.The results show that the activated carbon material prepared by the mixture possesses the hightest spectfic surface area(682m^2/g)and the specific capacitance is as high as198F/g with reversibility of charge and discharge and low impedance.
作者
王恩琦
谢刚
杨妮
田林
张丽鹏
WANG Enqi;XIE Gang;YANG Ni;TIAN Lin;ZHANG Lipeng(Shandong Fang-ya Ground Source Heat Pump Air Conditioning Technology Company Limited,Jinan 250000,China;State key Laboratory of Pressure Hydrometallurgical Technology of Associated Nonferrous Metal Resource,Kunming 650031,China;School of Chemical Engineering,Shandong University of Technology,Zibo 255049,China)
出处
《山东理工大学学报（自然科学版）》
CAS
2019年第2期43-47,共5页
Journal of Shandong University of Technology:Natural Science Edition
基金
共伴生有色金属资源加压湿法冶金技术国家重点实验室项目(yy20160010)
科技人才和平台计划-科技经络人才培养项目(2017HA012)
山东省重点研发计划项目(2017GGX40102)
关键词
活性炭
超级电容器
烟煤
椰
activated carbon
supercapacitor
coal
coconut shell
