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Integrated electrospun carbon nanofibers with vanadium and single-walled carbon nanotubes through covalent bonds for high-performance supercapacitors
Tang, Kexin1,2,3; Li, Yuping2; Cao, Hongbin1,2,3; Duan, Feng2; Zhang, Jason1; Zhang, Yi1,2,3; Wang, Yi2
2015
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume5Issue:50Pages:40163-40172
Abstract

We report a ternary composite vanadium/single-walled carbon nanotubes (SWCNTs)/carbon nanofibers (VSCNFs) material using hybrid-electrospinning and carbonizing of polyacrylonitrile, polyvinylpyrrolidone, SWCNTs and vanadyl acetylacetonate. The morphology and structure of the ternary composites are characterized. Its electrochemical properties are measured in a 6 mol L-1 aqueous KOH electrolyte. VSCNFs possesses a hierarchical structure with micropores and mesopores and a specific surface area of 821 m(2) g(-1), and it also exhibits a reversible specific capacitance of 479 F g(-1) A g(-1) and 367.4 F g(-1) at 10 A g(-1), and retains 94% of its initial capacitance after 5000 cycles (8 A g(-1)). The results show that simultaneously adding vanadium and SWCNTs can greatly enhance the conductivity, capacitive performance and stability by forming a closer connection with nanofibers through V-N-C, V-O-C and V=O bonds. SWNCTs are not only mechanically mixed in CNFs to enhance the extent of graphitization, but also involved in the transmutation process of CNFs graphitization with the participation of vanadium.

SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c5ra02237a
Indexed BySCI
Language英语
WOS KeywordENERGY-STORAGE ; POLYMER-SOLUTIONS ; ACTIVATED CARBON ; GRAPHENE ; POLYACRYLONITRILE ; SPECTROSCOPY ; COMPOSITE ; OXIDE ; TETRAPHENYLPORPHYRIN ; STABILIZATION
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000354211100067
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19241
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Tianjin Univ, Sch Chem Engn & Technol, Natl Engn Res Ctr Distillat Technol, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Tianjin Univ, Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China
Recommended Citation
GB/T 7714
Tang, Kexin,Li, Yuping,Cao, Hongbin,et al. Integrated electrospun carbon nanofibers with vanadium and single-walled carbon nanotubes through covalent bonds for high-performance supercapacitors[J]. RSC ADVANCES,2015,5(50):40163-40172.
APA Tang, Kexin.,Li, Yuping.,Cao, Hongbin.,Duan, Feng.,Zhang, Jason.,...&Wang, Yi.(2015).Integrated electrospun carbon nanofibers with vanadium and single-walled carbon nanotubes through covalent bonds for high-performance supercapacitors.RSC ADVANCES,5(50),40163-40172.
MLA Tang, Kexin,et al."Integrated electrospun carbon nanofibers with vanadium and single-walled carbon nanotubes through covalent bonds for high-performance supercapacitors".RSC ADVANCES 5.50(2015):40163-40172.
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