Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/81341
Title: A novel hollowed CoO-in-CoSnO 3 nanostructure with enhanced lithium storage capabilities
Authors: Guan, Cao
Li, Xianglin
Yu, Hong
Mao, Lu
Wong, Lydia Helena
Yan, Qingyu
Wang, John
Keywords: Secondary cells
Issue Date: 2014
Source: Guan, C., Li, X., Yu, H., Mao, L., Wong, L. H., Yan, Q., et al. (2014). A novel hollowed CoO-in-CoSnO 3 nanostructure with enhanced lithium storage capabilities. Nanoscale, 6(22), 13824-13830.
Series/Report no.: Nanoscale
Abstract: The search for well-defined porous/hollowed metal oxide nanocomposites for high performance energy storage is promising. Herein, atomic layer deposition (ALD) has been utilized for the construction of a novel hollowed wire-in-tube nanostructure of CoO-in-CoSnO3, for which Co2(OH)2CO3 nanowires are first obtained by a hydrothermal method and then deposited with ALD SnO2. After a proper thermal treatment, a CoO wire-void-CoSnO3 tube was formed with the decomposition of Co2(OH)2CO3 and its simultaneous reaction with the outer SnO2 layer. In this unique wire-in-tube structure, both CoO and CoSnO3 are promising materials for lithium ion battery anodes with high theoretical capacities, and the porous + hollow feature is essential for better electrode/electrolyte contact, shorter ion diffusion path and better structure stability. After a further facile carbon coating, the hollowed wire-in-tube structure delivered an improved capacity of 1162.1 mA h g−1, which is much higher than that of the bare CoO nanowire. Enhanced rate capability and cycling stability have also been demonstrated with the structure, showing its promising application for the anode material of lithium ion battery. The work also demonstrated an effective way of using ALD SnO2 for electrochemical energy storage that ALD SnO2 plays a key role in the structure formation and also serves as both active material and surface coating.
URI: https://hdl.handle.net/10356/81341
http://hdl.handle.net/10220/39235
ISSN: 2040-3364
DOI: 10.1039/C4NR04505J
Rights: © 2014 The Author(s). This is the author created version of a work that has been peer reviewed and accepted for publication in Nanoscale, published by Royal Society of Chemistry on behalf of The Author(s). It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document.  The published version is available at: [http://dx.doi.org/10.1039/C4NR04505J].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:ERI@N Journal Articles
MSE Journal Articles

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