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...

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Main Authors: Yu, Le, Guan, Buyuan, Xiao, Wei, Lou, Xiong Wen David
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2015
Online Access:https://hdl.handle.net/10356/101188
http://hdl.handle.net/10220/38696
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.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.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
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.
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
format Article
author Yu, Le
Guan, Buyuan
Xiao, Wei
Lou, Xiong Wen David
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
author_sort Yu, Le
title 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_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_sort formation of yolk-shelled ni-co mixed oxide nanoprisms with enhanced electrochemical performance for hybrid supercapacitors and lithium ion batteries
publishDate 2015
url https://hdl.handle.net/10356/101188
http://hdl.handle.net/10220/38696
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