Hierarchical ZnO@MnO2 Core-Shell Pillar Arrays on Ni Foam for Binder-Free Supercapacitor Electrodes

Handle URI:
http://hdl.handle.net/10754/598459
Title:
Hierarchical ZnO@MnO2 Core-Shell Pillar Arrays on Ni Foam for Binder-Free Supercapacitor Electrodes
Authors:
Huang, Ming; Li, Fei; Zhao, Xiao Li; Luo, Da; You, Xue Qiu; Zhang, Yu Xin; Li, Gang
Abstract:
© 2014 Elsevier Ltd. All rights reserved. Hierarchical ZnO@MnO2 core-shell pillar arrays on Ni foam have been fabricated by a facile two-step hydrothermal approach and further investigated as the binder-free electrode for supercapacitors. The core-shell hybrid nanostructure is achieved by decorating ultrathin self-standing MnO2 nanosheets on ZnO pillar arrays grown radically on Nickel foam. This unique well-designed binder-free electrode exhibits a high specific capacitance (423.5 F g-1 at a current density of 0.5 A g-1), and excellent cycling stability (92% capacitance retention after 3000 cycles). The improved electrochemical results show that the ZnO@MnO2 core-shell nanostructure electrode is promising for high-performance supercapacitors. The facile design of the unique core-shell array architectures provides a new and effective approach to fabricate high-performance binder-free electrode for supercapacitors.
Citation:
Huang M, Li F, Zhao XL, Luo D, You XQ, et al. (2015) Hierarchical ZnO@MnO2 Core-Shell Pillar Arrays on Ni Foam for Binder-Free Supercapacitor Electrodes. Electrochimica Acta 152: 172–177. Available: http://dx.doi.org/10.1016/j.electacta.2014.11.127.
Publisher:
Elsevier BV
Journal:
Electrochimica Acta
Issue Date:
Jan-2015
DOI:
10.1016/j.electacta.2014.11.127
Type:
Article
ISSN:
0013-4686
Sponsors:
The authors gratefully acknowledge the financial supports provided by National Natural Science Foundation of China (Grant no. 51104194 and 51104121), National Key laboratory of Fundamental Science of Micro/Nano-device and System Technology (2013MS06, Chongqing University) and Fundamental Research Funds for the Central Universities (Project no. CDJZR14135501, Chongqing University, PR China).The authors acknowledge sincere discussion and suggestions by Prof. Hongjin Fan in NTU, Singapore. 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.authorHuang, Mingen
dc.contributor.authorLi, Feien
dc.contributor.authorZhao, Xiao Lien
dc.contributor.authorLuo, Daen
dc.contributor.authorYou, Xue Qiuen
dc.contributor.authorZhang, Yu Xinen
dc.contributor.authorLi, Gangen
dc.date.accessioned2016-02-25T13:21:05Zen
dc.date.available2016-02-25T13:21:05Zen
dc.date.issued2015-01en
dc.identifier.citationHuang M, Li F, Zhao XL, Luo D, You XQ, et al. (2015) Hierarchical ZnO@MnO2 Core-Shell Pillar Arrays on Ni Foam for Binder-Free Supercapacitor Electrodes. Electrochimica Acta 152: 172–177. Available: http://dx.doi.org/10.1016/j.electacta.2014.11.127.en
dc.identifier.issn0013-4686en
dc.identifier.doi10.1016/j.electacta.2014.11.127en
dc.identifier.urihttp://hdl.handle.net/10754/598459en
dc.description.abstract© 2014 Elsevier Ltd. All rights reserved. Hierarchical ZnO@MnO2 core-shell pillar arrays on Ni foam have been fabricated by a facile two-step hydrothermal approach and further investigated as the binder-free electrode for supercapacitors. The core-shell hybrid nanostructure is achieved by decorating ultrathin self-standing MnO2 nanosheets on ZnO pillar arrays grown radically on Nickel foam. This unique well-designed binder-free electrode exhibits a high specific capacitance (423.5 F g-1 at a current density of 0.5 A g-1), and excellent cycling stability (92% capacitance retention after 3000 cycles). The improved electrochemical results show that the ZnO@MnO2 core-shell nanostructure electrode is promising for high-performance supercapacitors. The facile design of the unique core-shell array architectures provides a new and effective approach to fabricate high-performance binder-free electrode for supercapacitors.en
dc.description.sponsorshipThe authors gratefully acknowledge the financial supports provided by National Natural Science Foundation of China (Grant no. 51104194 and 51104121), National Key laboratory of Fundamental Science of Micro/Nano-device and System Technology (2013MS06, Chongqing University) and Fundamental Research Funds for the Central Universities (Project no. CDJZR14135501, Chongqing University, PR China).The authors acknowledge sincere discussion and suggestions by Prof. Hongjin Fan in NTU, Singapore. 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.subjectCore-shellen
dc.subjectHierarchicalen
dc.subjectManganese dioxideen
dc.subjectSupercapacitorsen
dc.subjectZinc oxideen
dc.titleHierarchical ZnO@MnO2 Core-Shell Pillar Arrays on Ni Foam for Binder-Free Supercapacitor Electrodesen
dc.typeArticleen
dc.identifier.journalElectrochimica Actaen
dc.contributor.institutionChongqing University, Chongqing, Chinaen
dc.contributor.institutionUlsan National Institute of Science and Technology, Ulsan, South Koreaen
dc.contributor.institutionCollege of Chemistry and Molecular Engineering, Peking University, Beijing, Chinaen
dc.contributor.institutionKorea University, Seoul, South Koreaen
dc.contributor.institutionNorthwest Institute for Nonferrous Metal Research, Xi'an, Chinaen
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