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Amorphous-crystalline TiO2/carbon nanofibers composite electrode by one-step electrospinning for symmetric supercapacitor
Tang, Kexin1,2,3; Li, Yuping2; Cao, Hongbin1,2,3; Su, Chunlei2; Zhang, Zisheng1,3; Zhang, Yi1,2,3
2016-02-01
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume190Issue:FEBPages:678-688
Abstract

In this study, the effects of titanium oxycompound templates on carbon nanofibers electrodes for supercapacitors application were investigated. Meanwhile, hybrid titanium that contains organic and inorganic titanium templates acted as another modification method. The organic and inorganic titanium oxycompounds referred to titanium (IV) oxy-acetylacetonate and titanium dioxide nanopowder, respectively. The morphology structure, and electrochemical properties of the three composite electrodes (TiO2@CNFs, OCTi@CNFs, HybTi@CNFs) were studied. Hierarchical pore structure with specific surface area of 697 m(2) g (1) was achieved in HybTi@CNFs, in which TiO2 revealed amorphous, tetragonal rutile and anatase structure. The electron charge transfer resistance and specific capacitance of HybTi@CNFs were calculated to be 0.3412 and 280.3 F g (1) (at current density of 1 A g (1)), respectively. After 4000 cycles with galvanostatic charge/discharge, HybTi@CNFs can maintain 97.5% of its initial capacitance under 8 A g (1) in a symmetric two-electrode system (6M KOH). These results indicate that OCTi@CNFs is superior to TiO2@CNFs, and HybTi@CNFs has combined the advantages of OCTi@CNFs and TiO2@CNFs, suggesting HybTi@CNFs is an excellent electrode material for supercapacitors. (C) 2015 Elsevier Ltd. All rights reserved.

KeywordTitanium Oxycompound Carbon Nanofibers Electrospinning Supercapacitor
SubtypeArticle
Subject AreaElectrochemistry ; Electrochemistry
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.electacta.2015.12.209
URL查看原文
Indexed BySCI
Language英语
WOS KeywordHigh-performance Supercapacitors ; Energy-storage ; Capacitive Deionization ; Carbon Nanofibers ; Photoelectron-spectroscopy ; Titanium Carbide ; X-ray ; Polyacrylonitrile ; Tio2 ; Graphene
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
Funding OrganizationNSFC (Natural Science Foundation of China)(21177130 ; 21377130)
WOS IDWOS:000371141500081
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20674
Collection研究所(批量导入)
Corresponding AuthorLi, Yuping
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. Amorphous-crystalline TiO2/carbon nanofibers composite electrode by one-step electrospinning for symmetric supercapacitor[J]. ELECTROCHIMICA ACTA,2016,190(FEB):678-688.
APA Tang, Kexin,Li, Yuping,Cao, Hongbin,Su, Chunlei,Zhang, Zisheng,&Zhang, Yi.(2016).Amorphous-crystalline TiO2/carbon nanofibers composite electrode by one-step electrospinning for symmetric supercapacitor.ELECTROCHIMICA ACTA,190(FEB),678-688.
MLA Tang, Kexin,et al."Amorphous-crystalline TiO2/carbon nanofibers composite electrode by one-step electrospinning for symmetric supercapacitor".ELECTROCHIMICA ACTA 190.FEB(2016):678-688.
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