Polymerization of pyrrole induced by pillar[5]arene functionalized graphene for supercapacitor electrode

查看全文 作　　者：Fang [1]Guo;Junqiang [1]Guo;Zhiqiang [1]Zheng;Tao [1]Xia;Aadil Nabi [1]Chishti;Liwei [1]Lin;Wang [1,2]Zhang;Guowang [1]Diao 机构地区：[1]School of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225002,China;[2]Department of Applied Bioengineering,Graduate School of Convergence Science and Technology,Seoul National University,Suwon 443-270,South Korea 出　　处：《Chinese Chemical Letters》索引2022年第33卷第11期,共4页 基　　金：supported by the National Natural Science Foundation of China(Nos.21703200 and 21773203);the Chey Institute for Advanced Studies International Scholar Exchange Fellowship for the academic year of 2021–2022;the Natural Science Foundation of Jiangsu Province of China(No.BK20170485);Postgraduate Research&Practice Innovation Program of Jiangsu Province(Nos.SJCX21_1565 and KYCX21_3204);China Scholarship Council program(No.201908320084);the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions。 摘　　要：Conducting polymer is an important electrode material for supercapacitors because of its high initial specific capacitance.Herein,a novel nanocomposite composed of polypyrrole(PPy)film homogeneously immobilized on the pillar[5]arene functionalized reduced graphene oxide nanosheets(RGO-HP5 A-PPy)was successfully prepared.RGO-HP5 A induced pyrrole to polymerize on the graphene surface and the specific capacitance loss caused by PPy agglomeration was avoided.Noticeably,the specific capacitance of RGOHP5 A-PPy was up to 495 F/g at 1 A/g.Compared with pure PPy(319 F/g),the specific capacitance was increased by 55%.The specific capacitance retention of the assembled symmetric supercapacitor reached76%after 10,000 cycles at 5 A/g.This study gave full play to the advantages of pillar[5]arene,graphene and PPy,and was expected to promote the development of supramolecular functionalized composites in energy storage. 关 键 词：Nanocomposite Pillar[5]arene GRAPHENE POLYPYRROLE SUPERCAPACITOR