Facile synthesis of Ge@C core-shell nanocomposites for high-performance lithium storage in lithium-ion batteries

Wang, Y; Wang, G

Facile synthesis of Ge@C core-shell nanocomposites for high-performance lithium storage in lithium-ion batteries

Wang, Y

Wang, G

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Publication Type:: Journal Article
Citation:: Chemistry - An Asian Journal, 2013, 8 (12), pp. 3142 - 3146
Issue Date:: 2013-12-01

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Field	Value	Language
dc.contributor.author	Wang, Y https://orcid.org/0000-0002-0290-0112	en_US
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578	en_US
dc.date.issued	2013-12-01	en_US
dc.identifier.citation	Chemistry - An Asian Journal, 2013, 8 (12), pp. 3142 - 3146	en_US
dc.identifier.issn	1861-4728	en_US
dc.identifier.uri	http://hdl.handle.net/10453/26464
dc.description.abstract	Herein, we report a facile and "green" synthetic route for the preparation of Ge@C core-shell nanocomposites by using a low-cost Ge precursor. Field-emission scanning electron microscopy and transmission electron microscopy analyses confirmed the core-shell nanoarchitecture of the Ge@C nanocomposites, with particle sizes ranging from 60 to 100 nm. Individual Ge nanocrystals were coated by a continuous carbon layer, which had an average thickness of 2 nm. When applied as an anode materials for lithium-ion batteries, the Ge@C nanocomposites exhibited a high initial discharge capacity of 1670 mAh g -1 and superior rate capability. In particular, Ge@C nanocomposite electrodes maintained a reversible capacity of 734 mAh g-1 after repeated cycling at a current density of 800 mA g-1 over 100 cycles. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.	en_US
dc.relation	http://purl.org/au-research/grants/arc/FT110100800
dc.relation.ispartof	Chemistry - An Asian Journal	en_US
dc.relation.isbasedon	10.1002/asia.201300858	en_US
dc.subject.classification	General Chemistry	en_US
dc.title	Facile synthesis of Ge@C core-shell nanocomposites for high-performance lithium storage in lithium-ion batteries	en_US
dc.type	Journal Article
utslib.citation.volume	12	en_US
utslib.citation.volume	8	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	03 Chemical Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	closed_access
pubs.issue	12	en_US
pubs.publication-status	Published	en_US
pubs.volume	8	en_US

Abstract:

Herein, we report a facile and "green" synthetic route for the preparation of Ge@C core-shell nanocomposites by using a low-cost Ge precursor. Field-emission scanning electron microscopy and transmission electron microscopy analyses confirmed the core-shell nanoarchitecture of the Ge@C nanocomposites, with particle sizes ranging from 60 to 100 nm. Individual Ge nanocrystals were coated by a continuous carbon layer, which had an average thickness of 2 nm. When applied as an anode materials for lithium-ion batteries, the Ge@C nanocomposites exhibited a high initial discharge capacity of 1670 mAh g -1 and superior rate capability. In particular, Ge@C nanocomposite electrodes maintained a reversible capacity of 734 mAh g-1 after repeated cycling at a current density of 800 mA g-1 over 100 cycles. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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http://hdl.handle.net/10453/26464