Structural investigation of nanomixed xSnO2–Al2O3 synthesized by sol–gel route

Abstract

Nanomixed SnO2–Al2O3 with variable composition has been synthesized by sol–gel technique using aluminium dichloride and stannous chloride as precursors. Synthesized nanocomposites have been characterized using various techniques such as X-ray diffraction (XRD), Fourier transform infrared, scanning electron microscopy and Energy-dispersive X-ray spectroscopy (EDX), Brunauer–Emmett–Teller (BET). XRD shows decrease in crystallinity as alumina component increases in following series of nanomixed oxides. The specific surface area calculated by Brunauer–Emmett–Teller (BET) method was about 191 m2/g and average pore diameter of 158 Å.