苹果皮基活性炭的制备及其在超级电容器中的应用  

Preparation of Apple Peel-based Activated Carbon and its Application in Supercapacitors

作　　者：李思雨[1] 梁子怡 刘宏柏 单旭东 丁涵 Li Siyu;Liang Ziyi;Liu Hongbai;Shan Xudong;Ding Han(College of Materials Engineering,Henan University of Engineering,Henan,451191)

机构地区：[1]河南工程学院材料工程学院,河南451191

出　　处：《当代化工研究》2024年第21期182-184,共3页Modern Chemical Research

基　　金：河南省高等学校重点项目“空心碳球/铁基复合材料的制备及其锂硫电池性能的研究”(项目编号:24A4300118)。

摘　　要：以生活废弃物苹果皮作为生物质前驱体,以氯化锌为活化剂,制备了苹果皮基活性炭材料(Apple peel based activated carbon materials,APBAC),并研究不同的剂料比(活化剂与半炭化样品的质量比)对材料结构及性能的影响。采用扫描电子显微镜(Scanning Electron Microscope,SEM)、比表面积及孔径分布测试仪和电化学工作站分别对材料的结构和电化学性能进行了测试。制备的苹果皮基活性炭表面粗糙,具有孔洞,比表面积可达539 m^(2)/g,微孔比表面积和孔体积所占比例随着活化剂的增加而减小,材料由微孔材料向中孔材料转变,样品APBAC-2在扫描速率为5 mV/s时比电容为125.3 F/g。Apple peel-based activated carbon(APBAC)was prepared by using apple peel as biomass precursor and zinc chloride as activator.The effects of different mass ratio of activator to semi-carbonized sample on the structure and properties of the material were studied.Structure of the obtained material was studied by scanning electron microscopy(SEM)and a surface area and pore size analysis method.Electrochemical performance of the as-prepared material was evaluated by electrochemical workstation.The obtained APBAC had rough surface and abundant pores.The Brunauer-Emmett-Teller(BET)specific surface area can be up to 539 m^(2)/g.The proportion of microporous specific surface area and pore volume decreases with the increase of activator ratio.The material changed from microporous material to mesoporous material.The specific capacitance of the sample APBAC-2 was 125.3 F/g at the scanning rate of 5 mV/s.

关 键 词：活性炭 苹果皮 活化 电化学性能 

分 类 号：TQ352.9[化学工程]