A novel hollowed CoO-in-CoSnO 3 nanostructure with enhanced lithium storage capabilities
The search for well-defined porous/hollowed metal oxide nanocomposites for high performance energy storage is promising. Herein, atomic layer deposition (ALD) has been utilized for the construction of a novel hollowed wire-in-tube nanostructure of CoO-in-CoSnO3, for which Co2(OH)2CO3 nanowires are f...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2015
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| Online Access: | https://hdl.handle.net/10356/81341 http://hdl.handle.net/10220/39235 |
| _version_ | 1811688920790859776 |
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| author | Guan, Cao Li, Xianglin Yu, Hong Mao, Lu Wong, Lydia Helena Yan, Qingyu Wang, John |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Guan, Cao Li, Xianglin Yu, Hong Mao, Lu Wong, Lydia Helena Yan, Qingyu Wang, John |
| author_sort | Guan, Cao |
| collection | NTU |
| description | The search for well-defined porous/hollowed metal oxide nanocomposites for high performance energy storage is promising. Herein, atomic layer deposition (ALD) has been utilized for the construction of a novel hollowed wire-in-tube nanostructure of CoO-in-CoSnO3, for which Co2(OH)2CO3 nanowires are first obtained by a hydrothermal method and then deposited with ALD SnO2. After a proper thermal treatment, a CoO wire-void-CoSnO3 tube was formed with the decomposition of Co2(OH)2CO3 and its simultaneous reaction with the outer SnO2 layer. In this unique wire-in-tube structure, both CoO and CoSnO3 are promising materials for lithium ion battery anodes with high theoretical capacities, and the porous + hollow feature is essential for better electrode/electrolyte contact, shorter ion diffusion path and better structure stability. After a further facile carbon coating, the hollowed wire-in-tube structure delivered an improved capacity of 1162.1 mA h g−1, which is much higher than that of the bare CoO nanowire. Enhanced rate capability and cycling stability have also been demonstrated with the structure, showing its promising application for the anode material of lithium ion battery. The work also demonstrated an effective way of using ALD SnO2 for electrochemical energy storage that ALD SnO2 plays a key role in the structure formation and also serves as both active material and surface coating. |
| first_indexed | 2024-10-01T05:39:53Z |
| format | Journal Article |
| id | ntu-10356/81341 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:39:53Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/813412021-01-13T02:32:06Z A novel hollowed CoO-in-CoSnO 3 nanostructure with enhanced lithium storage capabilities Guan, Cao Li, Xianglin Yu, Hong Mao, Lu Wong, Lydia Helena Yan, Qingyu Wang, John School of Materials Science & Engineering Energy Research Institute @ NTU (ERI@N) Secondary cells The search for well-defined porous/hollowed metal oxide nanocomposites for high performance energy storage is promising. Herein, atomic layer deposition (ALD) has been utilized for the construction of a novel hollowed wire-in-tube nanostructure of CoO-in-CoSnO3, for which Co2(OH)2CO3 nanowires are first obtained by a hydrothermal method and then deposited with ALD SnO2. After a proper thermal treatment, a CoO wire-void-CoSnO3 tube was formed with the decomposition of Co2(OH)2CO3 and its simultaneous reaction with the outer SnO2 layer. In this unique wire-in-tube structure, both CoO and CoSnO3 are promising materials for lithium ion battery anodes with high theoretical capacities, and the porous + hollow feature is essential for better electrode/electrolyte contact, shorter ion diffusion path and better structure stability. After a further facile carbon coating, the hollowed wire-in-tube structure delivered an improved capacity of 1162.1 mA h g−1, which is much higher than that of the bare CoO nanowire. Enhanced rate capability and cycling stability have also been demonstrated with the structure, showing its promising application for the anode material of lithium ion battery. The work also demonstrated an effective way of using ALD SnO2 for electrochemical energy storage that ALD SnO2 plays a key role in the structure formation and also serves as both active material and surface coating. ASTAR (Agency for Sci., Tech. and Research, S’pore) Accepted version 2015-12-29T09:30:43Z 2019-12-06T14:28:47Z 2015-12-29T09:30:43Z 2019-12-06T14:28:47Z 2014 Journal Article Guan, C., Li, X., Yu, H., Mao, L., Wong, L. H., Yan, Q., et al. (2014). A novel hollowed CoO-in-CoSnO 3 nanostructure with enhanced lithium storage capabilities. Nanoscale, 6(22), 13824-13830. 2040-3364 https://hdl.handle.net/10356/81341 http://hdl.handle.net/10220/39235 10.1039/C4NR04505J en Nanoscale © 2014 The Author(s). This is the author created version of a work that has been peer reviewed and accepted for publication in Nanoscale, published by Royal Society of Chemistry on behalf of The Author(s). It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1039/C4NR04505J]. 6 p. application/pdf |
| spellingShingle | Secondary cells Guan, Cao Li, Xianglin Yu, Hong Mao, Lu Wong, Lydia Helena Yan, Qingyu Wang, John A novel hollowed CoO-in-CoSnO 3 nanostructure with enhanced lithium storage capabilities |
| title | A novel hollowed CoO-in-CoSnO 3 nanostructure with enhanced lithium storage capabilities |
| title_full | A novel hollowed CoO-in-CoSnO 3 nanostructure with enhanced lithium storage capabilities |
| title_fullStr | A novel hollowed CoO-in-CoSnO 3 nanostructure with enhanced lithium storage capabilities |
| title_full_unstemmed | A novel hollowed CoO-in-CoSnO 3 nanostructure with enhanced lithium storage capabilities |
| title_short | A novel hollowed CoO-in-CoSnO 3 nanostructure with enhanced lithium storage capabilities |
| title_sort | novel hollowed coo in cosno 3 nanostructure with enhanced lithium storage capabilities |
| topic | Secondary cells |
| url | https://hdl.handle.net/10356/81341 http://hdl.handle.net/10220/39235 |
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