Oxide nanostructures hyperbranched with thin and hollow metal shells for high-performance nanostructured battery electrodes
High-performance electrochemical energy storage (EES) devices require the ability to modify and assemble electrode materials with superior reactivity and structural stability. The fabrication of different oxide/metal core-branch nanoarrays with adjustable components and morphologies (e.g., nanowire...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2014
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| Online Access: | https://hdl.handle.net/10356/105280 http://hdl.handle.net/10220/20500 http://dx.doi.org/10.1002/smll.201303958 |
| _version_ | 1826121399274569728 |
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| author | Xia, Xinhui Xiong, Qinqin Zhang, Yongqi Tu, Jiangping Ng, Chin Fan Fan, Hong Jin |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Xia, Xinhui Xiong, Qinqin Zhang, Yongqi Tu, Jiangping Ng, Chin Fan Fan, Hong Jin |
| author_sort | Xia, Xinhui |
| collection | NTU |
| description | High-performance electrochemical energy storage (EES) devices require the ability to modify and assemble electrode materials with superior reactivity and structural stability. The fabrication of different oxide/metal core-branch nanoarrays with adjustable components and morphologies (e.g., nanowire and nanoflake) is reported on different conductive substrates. Hollow metal branches (or shells) wrapped around oxide cores are realized by electrodeposition using ZnO nanorods as a sacrificial template. In battery electrode application, the thin hollow metal branches can provide a mechanical protection of the oxide core and a highly conductive path for charges. As a demonstration, arrays of Co3O4/Ni core-branch nanowires are evaluated as the anode for lithium ion batteries. The thin metal branches evidently improve the electrochemical performance with higher specific capacity, rate capability, and capacity retention than the unmodified Co3O4 counterparts. |
| first_indexed | 2024-10-01T05:32:00Z |
| format | Journal Article |
| id | ntu-10356/105280 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:32:00Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/1052802019-12-06T21:48:43Z Oxide nanostructures hyperbranched with thin and hollow metal shells for high-performance nanostructured battery electrodes Xia, Xinhui Xiong, Qinqin Zhang, Yongqi Tu, Jiangping Ng, Chin Fan Fan, Hong Jin School of Physical and Mathematical Sciences DRNTU::Science::Chemistry High-performance electrochemical energy storage (EES) devices require the ability to modify and assemble electrode materials with superior reactivity and structural stability. The fabrication of different oxide/metal core-branch nanoarrays with adjustable components and morphologies (e.g., nanowire and nanoflake) is reported on different conductive substrates. Hollow metal branches (or shells) wrapped around oxide cores are realized by electrodeposition using ZnO nanorods as a sacrificial template. In battery electrode application, the thin hollow metal branches can provide a mechanical protection of the oxide core and a highly conductive path for charges. As a demonstration, arrays of Co3O4/Ni core-branch nanowires are evaluated as the anode for lithium ion batteries. The thin metal branches evidently improve the electrochemical performance with higher specific capacity, rate capability, and capacity retention than the unmodified Co3O4 counterparts. ASTAR (Agency for Sci., Tech. and Research, S’pore) 2014-09-10T07:47:16Z 2019-12-06T21:48:43Z 2014-09-10T07:47:16Z 2019-12-06T21:48:43Z 2014 2014 Journal Article Xia, X., Xiong, Q., Zhang, Y., Tu, J., Ng, C. F., & Fan, H. J. (2014). Oxide Nanostructures Hyperbranched with Thin and Hollow Metal Shells for High-Performance Nanostructured Battery Electrodes. Small, 10(12), 2419-2428. 1613-6810 https://hdl.handle.net/10356/105280 http://hdl.handle.net/10220/20500 http://dx.doi.org/10.1002/smll.201303958 en Small © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | DRNTU::Science::Chemistry Xia, Xinhui Xiong, Qinqin Zhang, Yongqi Tu, Jiangping Ng, Chin Fan Fan, Hong Jin Oxide nanostructures hyperbranched with thin and hollow metal shells for high-performance nanostructured battery electrodes |
| title | Oxide nanostructures hyperbranched with thin and hollow metal shells for high-performance nanostructured battery electrodes |
| title_full | Oxide nanostructures hyperbranched with thin and hollow metal shells for high-performance nanostructured battery electrodes |
| title_fullStr | Oxide nanostructures hyperbranched with thin and hollow metal shells for high-performance nanostructured battery electrodes |
| title_full_unstemmed | Oxide nanostructures hyperbranched with thin and hollow metal shells for high-performance nanostructured battery electrodes |
| title_short | Oxide nanostructures hyperbranched with thin and hollow metal shells for high-performance nanostructured battery electrodes |
| title_sort | oxide nanostructures hyperbranched with thin and hollow metal shells for high performance nanostructured battery electrodes |
| topic | DRNTU::Science::Chemistry |
| url | https://hdl.handle.net/10356/105280 http://hdl.handle.net/10220/20500 http://dx.doi.org/10.1002/smll.201303958 |
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