Abstract
Herein, we report the synthesis of rhombohedral ilmenite CdSnO3 nanoparticles through coprecipitation method. The effect of sintering temperatures on phase purity of nanoparticles was observed from X-ray diffraction (XRD) analysis and further their structure parametres were determined. XRD patterns confirmed the formation of stable and phase pure rhombohedral ilmenite crystal structure of nanoparticles calcinated at 900 °C. For the first time, experimental observation of theoretically calculated various Raman active modes corresponding to CdSnO3 samples has been reported. The electron microscopy results suggest that synthesized nanoparticles have spherical shape with diameter lying in the range of 40–45 nm which is in accordance with the crystallite size as calculated using XRD data. The gas sensors were fabricated to explore the sensing properties of synthesized nanoparticles at different operating temperature. The sensing results shows that the sensor have good selectivity for propanol against the other gases at relatively lower temperature of 150 °C.
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