文献类型：期刊文献

英文题名：Preparation of biomass composite activated carbon based supercapacitor materials and their application in energy storage devices

作者：Yi, E.[1];Shen, Xing[1];Chen, Xin[1];Jiang, Meng[1];Yan, Wei[1];Liu, Yang[1];Jiang, Wenrui[1];Abdullah, Muhammad[1]

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

年份：2023

卷号：282

外文期刊名：CHEMICAL ENGINEERING SCIENCE

收录：;EI(收录号：20233614680123);WOS:【SCI-EXPANDED(收录号:WOS:001071183300001)】；

基金：This work was supported by the National Natural Science Foundation of China (21875066) ; Shanghai Leading Academic Discipline Project (B502) ; and the Shanghai Key Laboratory Project (08DZ2230500) .

语种：英文

外文关键词：Supercapacitor; Composite material; Activated carbon; Biomass

摘要：We prepared expired bread activated carbon (AC), ganoderma spore AC and mixed biomass AC by charring and chemical activation methods. The biomass AC based composite was obtained by simple mechanical compounding of graphene and biomass AC. The specific capacitance was 290.47F/g at a current density of 1 A/g. It retained a 99.92% specific capacitance value after 5000 cycles at a current density of 10 A/g. Assembled with hollow NiCo2S4 micron spheres into devices, the specific capacitance of the device was 148.40F/g at a current density of 1 A/g, and the energy density reached 56.11Wh/kg at a power density of 807.98 W/kg. The biomass composite AC based supercapacitor material not only shows a higher specific capacitance value than that of a commercial activated carbon by itself, it also demonstrated significant importance in improving the overall performance of the assembled supercapacitor devices.