UM
High-Performance Flexible Quasi-Solid-State Supercapacitors Realized by Molybdenum Dioxide@Nitrogen-Doped Carbon and Copper Cobalt Sulfide Tubular Nanostructures
Liu S.2; Yin Y.3; Hui K.S.4; Hui K.N.1; Lee S.C.2; Jun S.C.2
2018-10-01
Source PublicationAdvanced Science
ISSN21983844
Volume5Issue:10
AbstractFlexible quasi-/all-solid-state supercapacitors have elicited scientific attention to fulfill the explosive demand for portable and wearable electronic devices. However, the use of electrode materials faces several challenges, such as intrinsically slow kinetics and volume change upon cycling, which impede the energy output and electrochemical stability. This study presents well-aligned molybdenum dioxide@nitrogen-doped carbon (MoO @NC) and copper cobalt sulfide (CuCo S ) tubular nanostructures grown on flexible carbon fiber for use as electrode materials in supercapacitors. Benefiting from the chemically stable interfaces, affluent active sites, and efficient 1D electron transport, the MoO @NC and CuCo S nanostructures integrated on conductive substrates deliver excellent electrochemical performance. A flexible quasi-solid-state asymmetric supercapacitor composed of MoO @NC as the negative electrode and CuCo S as the positive electrode achieves an ultrahigh energy density of 65.1 W h kg at a power density of 800 W kg and retains a favorable energy density of 27.6 W h kg at an ultrahigh power density of 12.8 kW kg . Moreover, it demonstrates good cycling performance with 90.6% capacitance retention after 5000 cycles and excellent mechanical flexibility by enabling 92.2% capacitance retention after 2000 bending cycles. This study provides an effective strategy to develop electrode materials with superior electrochemical performance for flexible supercapacitors.
KeywordCuCo 2 S 4 electrochemical performance flexible quasi-solid-state supercapacitors MoO 2 tubular nanostructures
DOI10.1002/advs.201800733
URLView the original
Language英語
Fulltext Access
Citation statistics
Cited Times [WOS]:19   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Universidade de Macau
2.Yonsei University
3.Guilin University of Electronic Technology
4.University of East Anglia
Recommended Citation
GB/T 7714
Liu S.,Yin Y.,Hui K.S.,et al. High-Performance Flexible Quasi-Solid-State Supercapacitors Realized by Molybdenum Dioxide@Nitrogen-Doped Carbon and Copper Cobalt Sulfide Tubular Nanostructures[J]. Advanced Science,2018,5(10).
APA Liu S.,Yin Y.,Hui K.S.,Hui K.N.,Lee S.C.,&Jun S.C..(2018).High-Performance Flexible Quasi-Solid-State Supercapacitors Realized by Molybdenum Dioxide@Nitrogen-Doped Carbon and Copper Cobalt Sulfide Tubular Nanostructures.Advanced Science,5(10).
MLA Liu S.,et al."High-Performance Flexible Quasi-Solid-State Supercapacitors Realized by Molybdenum Dioxide@Nitrogen-Doped Carbon and Copper Cobalt Sulfide Tubular Nanostructures".Advanced Science 5.10(2018).
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu S.]'s Articles
[Yin Y.]'s Articles
[Hui K.S.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu S.]'s Articles
[Yin Y.]'s Articles
[Hui K.S.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu S.]'s Articles
[Yin Y.]'s Articles
[Hui K.S.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.