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...

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Main Authors: Xia, Xinhui, Xiong, Qinqin, Zhang, Yongqi, Tu, Jiangping, Ng, Chin Fan, Fan, Hong Jin
Other Authors: School of Physical and Mathematical Sciences
Format: 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
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.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.
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Science::Chemistry
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
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.
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
format Article
author Xia, Xinhui
Xiong, Qinqin
Zhang, Yongqi
Tu, Jiangping
Ng, Chin Fan
Fan, Hong Jin
author_sort Xia, Xinhui
title 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_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_sort oxide nanostructures hyperbranched with thin and hollow metal shells for high-performance nanostructured battery electrodes
publishDate 2014
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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