Structural and Infrared Spectroscopy Study of Chemically Synthesized Sn_1-xCo_xO₂ (0.00 ≤ x ≤ 0.05) Nanoparticles

Abstract:

In this work, an effective and economic way of transition metal doping in tin oxide nanoparticles is presented. The x-ray diffraction (XRD) measurements confirmed that the SnO2 nanoparticles are of single phase with rutile structure. Transmission electron microscopy (TEM) micrographs show that nanoparticles exhibit spherical shape with size of ~4 nm. To check the incorporation of cobalt and its chemical bonding with oxygen, systematic FTIR measurements were performed. The stretching-vibration mode (A2u) of Sn-O and deformation-vibration mode (Eu) of O-Sn-O were found to be broadened and shifted towards the higher wave numbers in case of cobalt doped samples. The Co-O/O-Co-O modes of the stable phase of cobalt oxide (Co2O3) were not detected in any doped samples. The results indicate that cobalt is present in the tin oxide lattice and do not form any metallic clusters or its oxide phases.

• Periodical: Advanced Materials Research (Volume 585)
• Pages: 179-182
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.585.179
• Online since: November 2012
• Authors: Aditya Sharma, D.K. Sharma, Kapil Sharma, Vipin Kumar
• Keywords: FT-IR, Nanoparticle, TEM, X-Ray Diffraction (XRD)

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