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1 2015

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Structural and optical properties of SnO2-Al2O3 nanocomposite synthesized via sol-gel route

Mishra N. K., Kumar C., Kumar A., Kumar M., Chaudhary P., Singh R.

Materials Science Poland

2015

Vol. 33, No. 4

714--718

A nanocomposite of 0.5SnO2-0.5Al2 O3 has been synthesized using a sol-gel route. Structural and optical properties of the nanocomposite have been discussed in detail. Powder X-ray diffraction and scanning electron microscopy with energy-dispersive X-ray diffraction spectroscopy confirm the phase purity and the particle size of the 0.5SnO2-0.5Al2 O3 nanocomposite (13 to 15 nm). The scanning electron microscopy also confirms the porosity in the sample, useful in sensing applications. The FT-IR analysis confirms the presence of physical interaction between SnO2 and Al2 O3 due to the slight shifting and broadening of characteristic bands. The UV-Vis analysis confirms the semiconducting nature because of direct transition of electrons into the 0.5SnO2-0.5Al2 O3 nanocomposites.