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Journal of Nanotechnology
Volume 2016, Article ID 8459374, 7 pages
http://dx.doi.org/10.1155/2016/8459374
Research Article

Electrochemical Formation of Cerium Oxide/Layered Silicate Nanocomposite Films

1Physics Department, Yeshiva University, New York, NY 10016, USA
2Department of Chemistry, University of North Texas, 1155 Union Circle #305070, Denton, TX 76203, USA

Received 30 June 2016; Accepted 17 November 2016

Academic Editor: Carlos R. Cabrera

Copyright © 2016 Adele Qi Wang and Teresa Diane Golden. 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

Cerium oxide/montmorillonite nanocomposite films were synthesized electrochemically from solutions containing 0.5 to 50% Na-montmorillonite. The nanocomposites were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, and Raman spectroscopy. Nanocomposite films synthesized from montmorillonite concentrations lower than 10% were continuous, uniform, and dense. X-ray diffraction confirmed that the nanocomposite films retain the face-centered cubic structure of cerium oxide while incorporating exfoliated platelets of the montmorillonite into the matrix. In addition, calculations from XRD data showed particle sizes ranging from 4.50 to 6.50 nm for the nanocomposite coatings. Raman and FTIR spectroscopy had peaks present for cerium oxide and the layered silicates in the coatings. Cross-sectional scanning electron microscopy and energy-dispersive X-ray spectroscopy confirmed the presence of montmorillonite throughout the cerium oxide matrix.