Formation of Yolk-Shelled Ni-Co Mixed Oxide Nanoprisms with Enhanced Electrochemical Performance for Hybrid Supercapacitors and Lithium Ion Batteries
Yolk-shelled particles with tailored physical and chemical properties are attractive for electrochemical energy storage. Starting with metal acetate hydroxide with tetragonal prism-like shapes, yolk-shelled Ni–Co mixed oxide nanoprisms with tunable composition have been prepared by simple thermal an...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2015
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| Online Access: | https://hdl.handle.net/10356/101188 http://hdl.handle.net/10220/38696 |
| _version_ | 1826111705707446272 |
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| author | Yu, Le Guan, Buyuan Xiao, Wei Lou, Xiong Wen David |
| author2 | School of Chemical and Biomedical Engineering |
| author_facet | School of Chemical and Biomedical Engineering Yu, Le Guan, Buyuan Xiao, Wei Lou, Xiong Wen David |
| author_sort | Yu, Le |
| collection | NTU |
| description | Yolk-shelled particles with tailored physical and chemical properties are attractive for electrochemical energy storage. Starting with metal acetate hydroxide with tetragonal prism-like shapes, yolk-shelled Ni–Co mixed oxide nanoprisms with tunable composition have been prepared by simple thermal annealing in air. It is found that the yolk-shelled structure is formed due to the fast thermally driven contraction process. With the favorable porous structure and composition, these yolk-shelled Ni–Co oxide particles manifest greatly enhanced electrochemical properties when evaluated as electrodes for both hybrid supercapacitors and lithium ion batteries. In particular, the resultant Ni0.37Co oxide sample delivers very high specific capacitance of over 1000 F g−1 at a current density of 10 A g−1 with remarkably high capacitance retention of 98% after 15 000 cycles. |
| first_indexed | 2024-10-01T02:55:11Z |
| format | Journal Article |
| id | ntu-10356/101188 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:55:11Z |
| publishDate | 2015 |
| record_format | dspace |
| spelling | ntu-10356/1011882020-03-07T11:35:26Z Formation of Yolk-Shelled Ni-Co Mixed Oxide Nanoprisms with Enhanced Electrochemical Performance for Hybrid Supercapacitors and Lithium Ion Batteries Yu, Le Guan, Buyuan Xiao, Wei Lou, Xiong Wen David School of Chemical and Biomedical Engineering Yolk-shelled particles with tailored physical and chemical properties are attractive for electrochemical energy storage. Starting with metal acetate hydroxide with tetragonal prism-like shapes, yolk-shelled Ni–Co mixed oxide nanoprisms with tunable composition have been prepared by simple thermal annealing in air. It is found that the yolk-shelled structure is formed due to the fast thermally driven contraction process. With the favorable porous structure and composition, these yolk-shelled Ni–Co oxide particles manifest greatly enhanced electrochemical properties when evaluated as electrodes for both hybrid supercapacitors and lithium ion batteries. In particular, the resultant Ni0.37Co oxide sample delivers very high specific capacitance of over 1000 F g−1 at a current density of 10 A g−1 with remarkably high capacitance retention of 98% after 15 000 cycles. 2015-09-15T07:06:30Z 2019-12-06T20:34:59Z 2015-09-15T07:06:30Z 2019-12-06T20:34:59Z 2015 2015 Journal Article Yu, L., Guan, B., Xiao, W., & Lou, X. W. D. (2015). Formation of Yolk-Shelled Ni-Co Mixed Oxide Nanoprisms with Enhanced Electrochemical Performance for Hybrid Supercapacitors and Lithium Ion Batteries. Advanced Energy Materials, 5(21). 1614-6832 https://hdl.handle.net/10356/101188 http://hdl.handle.net/10220/38696 10.1002/aenm.201500981 en Advanced Energy Materials © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
| spellingShingle | Yu, Le Guan, Buyuan Xiao, Wei Lou, Xiong Wen David Formation of Yolk-Shelled Ni-Co Mixed Oxide Nanoprisms with Enhanced Electrochemical Performance for Hybrid Supercapacitors and Lithium Ion Batteries |
| title | Formation of Yolk-Shelled Ni-Co Mixed Oxide Nanoprisms with Enhanced Electrochemical Performance for Hybrid Supercapacitors and Lithium Ion Batteries |
| title_full | Formation of Yolk-Shelled Ni-Co Mixed Oxide Nanoprisms with Enhanced Electrochemical Performance for Hybrid Supercapacitors and Lithium Ion Batteries |
| title_fullStr | Formation of Yolk-Shelled Ni-Co Mixed Oxide Nanoprisms with Enhanced Electrochemical Performance for Hybrid Supercapacitors and Lithium Ion Batteries |
| title_full_unstemmed | Formation of Yolk-Shelled Ni-Co Mixed Oxide Nanoprisms with Enhanced Electrochemical Performance for Hybrid Supercapacitors and Lithium Ion Batteries |
| title_short | Formation of Yolk-Shelled Ni-Co Mixed Oxide Nanoprisms with Enhanced Electrochemical Performance for Hybrid Supercapacitors and Lithium Ion Batteries |
| title_sort | formation of yolk shelled ni co mixed oxide nanoprisms with enhanced electrochemical performance for hybrid supercapacitors and lithium ion batteries |
| url | https://hdl.handle.net/10356/101188 http://hdl.handle.net/10220/38696 |
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