UM
1 D Hierarchical MnCo2O4 Nanowire@MnO2 Sheet Core–Shell Arrays on Graphite Paper as Superior Electrodes for Asymmetric Supercapacitors
Liu S.; Hui K.S.; Hui K.N.
2015
Source PublicationChemNanoMat
ISSN2199692X
Volume1Issue:8Pages:593
AbstractHeterostructured metal oxide core–shell architectures have attracted considerable attention owing to their superior electrochemical performance in supercapacitors compared to a single structure. Here, we report a simple and effective synthesis of hierarchical MnCo2O4 nanowire@MnO2 sheet core–shell nanostructures anchored on graphite paper for use in supercapacitors. The proposed electrode exhibits a specific capacitance of 2262 F g−1 at 1 A g−1. In addition, good rate capability and excellent cycling performance are observed. An asymmetric supercapacitor with operating potential at 1.6 V is demonstrated using MnCo2O4@MnO2 as cathode and graphene/nickel foam (NF) as anode. The MnCo2O4@MnO2//graphene/NF asymmetric device shows a high energy density of 85.7 Wh kg−1 at a power density of 800 W kg−1 while maintaining a high energy density of 34.7 Wh kg−1 at 24 kW kg−1. Moreover, the device demonstrates a long-term cycling stability of 81.6 % retention of its initial specific capacitance. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Keywordasymmetric supercapacitor core–shell heterostructures MnCo2O4 nanowire MnO2 sheet
DOI10.1002/cnma.201500105
URLView the original
Language英语
The Source to ArticleScopus
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Cited Times [WOS]:78   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
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GB/T 7714
Liu S.,Hui K.S.,Hui K.N.. 1 D Hierarchical MnCo2O4 Nanowire@MnO2 Sheet Core–Shell Arrays on Graphite Paper as Superior Electrodes for Asymmetric Supercapacitors[J]. ChemNanoMat,2015,1(8):593.
APA Liu S.,Hui K.S.,&Hui K.N..(2015).1 D Hierarchical MnCo2O4 Nanowire@MnO2 Sheet Core–Shell Arrays on Graphite Paper as Superior Electrodes for Asymmetric Supercapacitors.ChemNanoMat,1(8),593.
MLA Liu S.,et al."1 D Hierarchical MnCo2O4 Nanowire@MnO2 Sheet Core–Shell Arrays on Graphite Paper as Superior Electrodes for Asymmetric Supercapacitors".ChemNanoMat 1.8(2015):593.
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