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Synthesis of sulfonated graphene/carbon nanotubes/manganese dioxide composite with high electrochemical properties
Li, Wei1; Xu, Huizhong1; Cui, Mengjie1; Zhao, Jie2; Liu, Faqian1; Liu, Tangfeng1
2019-03-01
Source PublicationIONICS
ISSN0947-7047
Volume25Issue:3Pages:999-1006
Corresponding AuthorLi, Wei(weilipku@hotmail.com) ; Liu, Faqian(fqliu@qust.edu.cn)
AbstractCombining MnO2 with conductive carbon materials is an efficient approach to improve the electrical conductivity of MnO2-based electrodes, which could greatly improve the electrochemical performance of supercapacitors. Here, a ternary composite consisting of sulfonated graphene, carbon nanotubes, and manganese dioxide (SG/CNTs/MnO2) has been successfully fabricated by a facile yet efficient method. The electrochemical properties are evaluated by cyclic voltammetry (CV), galvanostatic charge/discharge (GCD), and electrochemical impedance spectroscopy (EIS) techniques. The results show a prominent improvement of electrochemical performance of MnO2-based electrodes. For instance, the specific capacitance of SG/CNTs/MnO2 composite is 336.4Fg(-1) at the current density of 0.5Ag(-1), which is much higher than pure MnO2 (77.1Fg(-1)) and binary SG/MnO2 (213.0Fg(-1)). Moreover, SG/CNTs/MnO2 composite shows good cycling stability with 91.3% capacitance retention after 10,000cycles at a current density of 5Ag(-1).
KeywordMnO2 Electrical conductivity Sulfonated graphene (SG) Supercapacitors
DOI10.1007/s11581-018-2767-0
Indexed BySCI
Language英语
Funding ProjectNational Science Foundation of China[21371105] ; Scientific Development Plan of Qingdao[14-2-4-41-jch] ; Natural Science Foundation of Shandong Province[ZR2018LB034]
WOS Research AreaChemistry ; Electrochemistry ; Physics
WOS SubjectChemistry, Physical ; Electrochemistry ; Physics, Condensed Matter
WOS IDWOS:000461339000010
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/155310
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorLi, Wei; Liu, Faqian
Affiliation1.Qingdao Univ Sci & Technol, Engn Res Ctr High Performance Polymer & Molding T, Minist Educ, Qingdao 266042, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
Recommended Citation
GB/T 7714
Li, Wei,Xu, Huizhong,Cui, Mengjie,et al. Synthesis of sulfonated graphene/carbon nanotubes/manganese dioxide composite with high electrochemical properties[J]. IONICS,2019,25(3):999-1006.
APA Li, Wei,Xu, Huizhong,Cui, Mengjie,Zhao, Jie,Liu, Faqian,&Liu, Tangfeng.(2019).Synthesis of sulfonated graphene/carbon nanotubes/manganese dioxide composite with high electrochemical properties.IONICS,25(3),999-1006.
MLA Li, Wei,et al."Synthesis of sulfonated graphene/carbon nanotubes/manganese dioxide composite with high electrochemical properties".IONICS 25.3(2019):999-1006.
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