Novel metal@carbon spheres core-shell arrays by controlled self-assembly of carbon nanospheres : a stable and flexible supercapacitor electrode
The high performance of electrochemical energy-storage devices relies largely on scrupulous design of nanoarchitectures and smart hybridization of bespoke active materials. Carbon nanopsheres (CNSs) are widely used for energy storage and conversion devices. Here, the directional assembly of CNSs on...
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| Materiálatiipa: | Journal Article |
| Giella: | English |
| Almmustuhtton: |
2015
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| Liŋkkat: | https://hdl.handle.net/10356/107216 http://hdl.handle.net/10220/25418 |
| _version_ | 1826110635983765504 |
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| author | Fan, Hong Jin Chao, Dongliang Xiong, Qinqin Tu, Jiangping Zhang, Hua Xia, Xinhui Zhang, Yongqi Fan, Zhanxi |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Fan, Hong Jin Chao, Dongliang Xiong, Qinqin Tu, Jiangping Zhang, Hua Xia, Xinhui Zhang, Yongqi Fan, Zhanxi |
| author_sort | Fan, Hong Jin |
| collection | NTU |
| description | The high performance of electrochemical energy-storage devices relies largely on scrupulous design of nanoarchitectures and smart hybridization of bespoke active materials. Carbon nanopsheres (CNSs) are widely used for energy storage and conversion devices. Here, the directional assembly of CNSs on a vertical-standing metal scaffold into a core/shell array structure is reported. The method uses a three-step all-solution synthesis strategy (chemical bath deposition, electrodeposition, and hydrothermal) and begins from ZnO microrod arrays as a sacrificial template. The self-assembly of CNSs can be correlated to a simultaneous etching effect to the ZnO accompanying the polymerization of glucose precursor. The Ni microtube/CNSs arrays are selected as an example for structural and electrochemical characterizations. The novel type of metal/CNSs arrays is demonstrated to be a highly stable electrode for supercapacitors. The electrodes of metal/CNSs arrays are assembled into symmetric supercapacitors and exhibit high capacitances of 227 F g−1 (at 2.5 A g−1) and an outstanding cycling stability with capacitance retention of 97% after 40 000 cycles. |
| first_indexed | 2024-10-01T02:37:44Z |
| format | Journal Article |
| id | ntu-10356/107216 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:37:44Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1072162020-06-01T10:21:11Z Novel metal@carbon spheres core-shell arrays by controlled self-assembly of carbon nanospheres : a stable and flexible supercapacitor electrode Fan, Hong Jin Chao, Dongliang Xiong, Qinqin Tu, Jiangping Zhang, Hua Xia, Xinhui Zhang, Yongqi Fan, Zhanxi School of Materials Science & Engineering School of Physical and Mathematical Sciences DRNTU::Engineering::Materials::Energy materials The high performance of electrochemical energy-storage devices relies largely on scrupulous design of nanoarchitectures and smart hybridization of bespoke active materials. Carbon nanopsheres (CNSs) are widely used for energy storage and conversion devices. Here, the directional assembly of CNSs on a vertical-standing metal scaffold into a core/shell array structure is reported. The method uses a three-step all-solution synthesis strategy (chemical bath deposition, electrodeposition, and hydrothermal) and begins from ZnO microrod arrays as a sacrificial template. The self-assembly of CNSs can be correlated to a simultaneous etching effect to the ZnO accompanying the polymerization of glucose precursor. The Ni microtube/CNSs arrays are selected as an example for structural and electrochemical characterizations. The novel type of metal/CNSs arrays is demonstrated to be a highly stable electrode for supercapacitors. The electrodes of metal/CNSs arrays are assembled into symmetric supercapacitors and exhibit high capacitances of 227 F g−1 (at 2.5 A g−1) and an outstanding cycling stability with capacitance retention of 97% after 40 000 cycles. ASTAR (Agency for Sci., Tech. and Research, S’pore) 2015-04-17T02:32:51Z 2019-12-06T22:26:53Z 2015-04-17T02:32:51Z 2019-12-06T22:26:53Z 2014 2014 Journal Article Xia, X., Zhang, Y., Fan, Z., Chao, D., Xiong, Q., Tu, J., et al. (2015). Novel metal@carbon spheres core-shell arrays by controlled self-assembly of carbon nanospheres : a stable and flexible supercapacitor electrode. Advanced energy materials, 5(6). 1614-6832 https://hdl.handle.net/10356/107216 http://hdl.handle.net/10220/25418 10.1002/aenm.201401709 en Advanced energy materials © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | DRNTU::Engineering::Materials::Energy materials Fan, Hong Jin Chao, Dongliang Xiong, Qinqin Tu, Jiangping Zhang, Hua Xia, Xinhui Zhang, Yongqi Fan, Zhanxi Novel metal@carbon spheres core-shell arrays by controlled self-assembly of carbon nanospheres : a stable and flexible supercapacitor electrode |
| title | Novel metal@carbon spheres core-shell arrays by controlled self-assembly of carbon nanospheres : a stable and flexible supercapacitor electrode |
| title_full | Novel metal@carbon spheres core-shell arrays by controlled self-assembly of carbon nanospheres : a stable and flexible supercapacitor electrode |
| title_fullStr | Novel metal@carbon spheres core-shell arrays by controlled self-assembly of carbon nanospheres : a stable and flexible supercapacitor electrode |
| title_full_unstemmed | Novel metal@carbon spheres core-shell arrays by controlled self-assembly of carbon nanospheres : a stable and flexible supercapacitor electrode |
| title_short | Novel metal@carbon spheres core-shell arrays by controlled self-assembly of carbon nanospheres : a stable and flexible supercapacitor electrode |
| title_sort | novel metal carbon spheres core shell arrays by controlled self assembly of carbon nanospheres a stable and flexible supercapacitor electrode |
| topic | DRNTU::Engineering::Materials::Energy materials |
| url | https://hdl.handle.net/10356/107216 http://hdl.handle.net/10220/25418 |
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