Please use this identifier to cite or link to this item: https://doi.org/10.1002/adfm.201100088
Title: Epitaxial growth of branched α-Fe2O3/SnO 2 nano-heterostructures with improved lithium-ion battery performance
Authors: Zhou, W.
Cheng, C.
Liu, J.
Tay, Y.Y.
Jiang, J.
Jia, X.
Zhang, J. 
Gong, H. 
Hng, H.H.
Yu, T.
Fan, H.J.
Keywords: α-Fe2O3
branching
lithium-ion batteries
nano-heterostructure
SnO2
Issue Date: 8-Jul-2011
Citation: Zhou, W., Cheng, C., Liu, J., Tay, Y.Y., Jiang, J., Jia, X., Zhang, J., Gong, H., Hng, H.H., Yu, T., Fan, H.J. (2011-07-08). Epitaxial growth of branched α-Fe2O3/SnO 2 nano-heterostructures with improved lithium-ion battery performance. Advanced Functional Materials 21 (13) : 2439-2445. ScholarBank@NUS Repository. https://doi.org/10.1002/adfm.201100088
Abstract: We report the synthesis of a novel branched nano-heterostructure composed of SnO2 nanowire stem and α-Fe2O3 nanorod branches by combining a vapour transport deposition and a facile hydrothermal method. The epitaxial relationship between the branch and stem is investigated by high resolution transmission electron microscopy (HRTEM). The SnO2 nanowire is determined to grow along the [101] direction, enclosed by four side surfaces. The results indicate that distinct crystallographic planes of SnO2 stem can induce different preferential growth directions of secondary nanorod branches, leading to six-fold symmetry rather than four-fold symmetry. Moreover, as a proof-of-concept demonstration of the function, such α-Fe2O3/SnO2 composite material is used as a lithium-ion batteries (LIBs) anode material. Low initial irreversible loss and high reversible capacity are demonstrated, in comparison to both single components. The synergetic effect exerted by SnO2 and α-Fe 2O3 as well as the unique branched structure are probably responsible for the enhanced performance. A unique six-fold-symmetry branched α-Fe2O3/SnO2 nano-heterostructure composed of SnO2 nanowire stems and α-Fe2O 3 nanorod branches are prepared by combining a vapour transport deposition and a facile hydrothermal method. As a lithium-ion battery material, the composite exhibits low initial irreversible loss and high reversible capacity in comparison to both single components. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Source Title: Advanced Functional Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/86310
ISSN: 1616301X
DOI: 10.1002/adfm.201100088
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

316
checked on Nov 17, 2018

WEB OF SCIENCETM
Citations

302
checked on Nov 12, 2018

Page view(s)

63
checked on Nov 2, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.