Rational design of hierarchically porous birnessite-type manganese dioxides nanosheets on different one-dimensional titania-based nanowires for high performance supercapacitors

Handle URI:
http://hdl.handle.net/10754/599449
Title:
Rational design of hierarchically porous birnessite-type manganese dioxides nanosheets on different one-dimensional titania-based nanowires for high performance supercapacitors
Authors:
Zhang, Yu Xin; Kuang, Min; Hao, Xiao Dong; Liu, Yan; Huang, Ming; Guo, Xiao Long; Yan, Jing; Han, Gen Quan; Li, Jing
Abstract:
A facile and large-scale strategy of mesoporous birnessite-type manganese dioxide (MnO2) nanosheets on one-dimension (1D) H2Ti 3O7 and anatase/TiO2 (B) nanowires (NWs) is developed for high performance supercapacitors. The morphological characteristics of MnO2 nanoflakes on H2Ti 3O7 and anatase/TiO2 (B) NWs could be rationally designed with various characteristics (e.g., the sheet thickness, surface area). Interestingly, the MnO2/TiO2 NWs exhibit a more optimized electrochemical performance with specific capacitance of 120 F g-1 at current density of 0.1 A g-1 (based on MnO 2 + TiO2) than MnO2/H2Ti 3O7 NWs. An asymmetric supercapacitor of MnO 2/TiO2//activated graphene (AG) yields a better energy density of 29.8 Wh kg-1 than MnO2/H2Ti 3O7//AG asymmetric supercapacitor, while maintaining desirable cycling stability. Indeed, the pseudocapacitive difference is related to the substrates, unique structure and surface area. Especially, the anatase/TiO2 (B) mixed-phase system can provide good electronic conductivity and high utilization of MnO2 nanosheets. © 2014 Elsevier B.V. All rights reserved.
Citation:
Zhang YX, Kuang M, Hao XD, Liu Y, Huang M, et al. (2014) Rational design of hierarchically porous birnessite-type manganese dioxides nanosheets on different one-dimensional titania-based nanowires for high performance supercapacitors. Journal of Power Sources 270: 675–683. Available: http://dx.doi.org/10.1016/j.jpowsour.2014.07.114.
Publisher:
Elsevier BV
Journal:
Journal of Power Sources
Issue Date:
Dec-2014
DOI:
10.1016/j.jpowsour.2014.07.114
Type:
Article
ISSN:
0378-7753
Sponsors:
The authors gratefully acknowledge the financial supports provided by National Natural Science Foundation of China (Grant no. 51104194 and 21103127), Doctoral Fund of Ministry of Education of China (20110191120014), No. 43 Scientific Research Foundation for the Returned Overseas Chinese Scholars, National Key laboratory of Fundamental Science of Micro/Nano-device and System Technology (2013MS06, Chongqing University), State Education Ministry and Fundamental Research Funds for the Central Universities (Project no. 106112013CDJZR120017 and CDJZR13130035, Chongqing University, PR China). The authors acknowledge support on electrochemical characterization by Dr. Kexin Yao in King Abdullah University of Science and Technology, Saudi Arabia.
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DC FieldValue Language
dc.contributor.authorZhang, Yu Xinen
dc.contributor.authorKuang, Minen
dc.contributor.authorHao, Xiao Dongen
dc.contributor.authorLiu, Yanen
dc.contributor.authorHuang, Mingen
dc.contributor.authorGuo, Xiao Longen
dc.contributor.authorYan, Jingen
dc.contributor.authorHan, Gen Quanen
dc.contributor.authorLi, Jingen
dc.date.accessioned2016-02-28T05:51:20Zen
dc.date.available2016-02-28T05:51:20Zen
dc.date.issued2014-12en
dc.identifier.citationZhang YX, Kuang M, Hao XD, Liu Y, Huang M, et al. (2014) Rational design of hierarchically porous birnessite-type manganese dioxides nanosheets on different one-dimensional titania-based nanowires for high performance supercapacitors. Journal of Power Sources 270: 675–683. Available: http://dx.doi.org/10.1016/j.jpowsour.2014.07.114.en
dc.identifier.issn0378-7753en
dc.identifier.doi10.1016/j.jpowsour.2014.07.114en
dc.identifier.urihttp://hdl.handle.net/10754/599449en
dc.description.abstractA facile and large-scale strategy of mesoporous birnessite-type manganese dioxide (MnO2) nanosheets on one-dimension (1D) H2Ti 3O7 and anatase/TiO2 (B) nanowires (NWs) is developed for high performance supercapacitors. The morphological characteristics of MnO2 nanoflakes on H2Ti 3O7 and anatase/TiO2 (B) NWs could be rationally designed with various characteristics (e.g., the sheet thickness, surface area). Interestingly, the MnO2/TiO2 NWs exhibit a more optimized electrochemical performance with specific capacitance of 120 F g-1 at current density of 0.1 A g-1 (based on MnO 2 + TiO2) than MnO2/H2Ti 3O7 NWs. An asymmetric supercapacitor of MnO 2/TiO2//activated graphene (AG) yields a better energy density of 29.8 Wh kg-1 than MnO2/H2Ti 3O7//AG asymmetric supercapacitor, while maintaining desirable cycling stability. Indeed, the pseudocapacitive difference is related to the substrates, unique structure and surface area. Especially, the anatase/TiO2 (B) mixed-phase system can provide good electronic conductivity and high utilization of MnO2 nanosheets. © 2014 Elsevier B.V. All rights reserved.en
dc.description.sponsorshipThe authors gratefully acknowledge the financial supports provided by National Natural Science Foundation of China (Grant no. 51104194 and 21103127), Doctoral Fund of Ministry of Education of China (20110191120014), No. 43 Scientific Research Foundation for the Returned Overseas Chinese Scholars, National Key laboratory of Fundamental Science of Micro/Nano-device and System Technology (2013MS06, Chongqing University), State Education Ministry and Fundamental Research Funds for the Central Universities (Project no. 106112013CDJZR120017 and CDJZR13130035, Chongqing University, PR China). The authors acknowledge support on electrochemical characterization by Dr. Kexin Yao in King Abdullah University of Science and Technology, Saudi Arabia.en
dc.publisherElsevier BVen
dc.subjectManganese oxidesen
dc.subjectNanocompositesen
dc.subjectSupercapacitorsen
dc.subjectTitaniaen
dc.titleRational design of hierarchically porous birnessite-type manganese dioxides nanosheets on different one-dimensional titania-based nanowires for high performance supercapacitorsen
dc.typeArticleen
dc.identifier.journalJournal of Power Sourcesen
dc.contributor.institutionChongqing University, Chongqing, Chinaen
dc.contributor.institutionTongji University, Shanghai, Chinaen
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