Please use this identifier to cite or link to this item: https://doi.org/10.1021/am404939q
Title: Maghemite nanoparticles on electrospun CNFs template as prospective lithium-ion battery anode
Authors: Wu, Y.
Zhu, P.
Reddy, M.V. 
Chowdari, B.V.R. 
Ramakrishna, S. 
Keywords: anode material
electrospun CNF
lithium-ion battery
maghemite nanoparticles
Issue Date: 12-Feb-2014
Citation: Wu, Y., Zhu, P., Reddy, M.V., Chowdari, B.V.R., Ramakrishna, S. (2014-02-12). Maghemite nanoparticles on electrospun CNFs template as prospective lithium-ion battery anode. ACS Applied Materials and Interfaces 6 (3) : 1951-1958. ScholarBank@NUS Repository. https://doi.org/10.1021/am404939q
Abstract: In this work, maghemite (γ-Fe2O3) nanoparticles were uniformly coated on carbon nanofibers (CNFs) by a hybrid synthesis procedure combining an electrospinning technique and hydrothermal method. Polyacrylonitrile nanofibers fabricated by the electrospinning technique serve as a robust support for iron oxide precursors during the hydrothermal process and successfully limit the aggregation of nanoparticles at the following carbonization step. The best materials were optimized under a carbonization condition of 600 C for 12 h. X-ray diffraction and electron microscopy studies confirm the formation of a maghemite structure standing on the surface of CNFs. The average size of γ-Fe2O3 nanoparticles is below 100 nm, whereas CNFs are ∼150 nm in diameter. In comparison with aggregated bare iron oxide nanoparticles, the as-prepared carbon-maghemite nanofibers exhibit a higher surface area and greatly improved electrochemical performance (>830 mAh g-1 at 50 mA g-1 for 40 cycles and high rate capacity up to 5 A g-1 in the voltage range of 0.005-3 V vs Li). The greatly enhanced electrochemical performance is attributed to the unique one-dimensional nanostructure and the limited aggregation of nanoparticles. © 2014 American Chemical Society.
Source Title: ACS Applied Materials and Interfaces
URI: http://scholarbank.nus.edu.sg/handle/10635/85370
ISSN: 19448244
DOI: 10.1021/am404939q
Appears in Collections:Staff Publications

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

SCOPUSTM   
Citations

52
checked on May 21, 2018

WEB OF SCIENCETM
Citations

52
checked on Apr 30, 2018

Page view(s)

38
checked on May 18, 2018

Google ScholarTM

Check

Altmetric


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