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Journal of Nanotechnology
Volume 2014, Article ID 381273, 9 pages
http://dx.doi.org/10.1155/2014/381273
Research Article

Binder Free SnO2-CNT Composite as Anode Material for Li-Ion Battery

1Photovoltaic and Electrochemical Systems Branch, NASA Glenn Research Center, LEX, 21000 Brookpark Road, Cleveland, OH 44135, USA
2Institute of Functional Nanomaterials, University of Puerto Rico, San Juan, PR 00931, USA
3Chemistry Department, University of Puerto Rico, San Juan, PR 00936, USA
4Physics Department, University of Puerto Rico, San Juan, PR 00936, USA

Received 26 November 2013; Revised 8 April 2014; Accepted 16 April 2014; Published 25 May 2014

Academic Editor: Valery Khabashesku

Copyright © 2014 Dionne Hernandez et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Tin dioxide-carbon nanotube (SnO2-CNT) composite films were synthesized on copper substrates by a one-step process using hot filament chemical vapor deposition (HFCVD) with methane gas (CH4) as the carbon source. The composite structural properties enhance the surface-to-volume ratio of SnO2 demonstrating a desirable electrochemical performance for a lithium-ion battery anode. The SnO2 and CNT interactions were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared-attenuated total reflectance (ATR-FTIR) spectroscopy. Comprehensive analysis of the structural, chemical, and electrochemical properties reveals that the material consists of self-assembled and highly dispersed SnO2 nanoparticles in CNT matrix. The process employed to develop this SnO2-CNT composite film presents a cost effective and facile way to develop anode materials for Li-ion battery technology.