Abstract
The purpose of this study is to determine the effect of temperature on the microstructure of Manganese Ferrite (MnFe2O4) nanoparticles. The synthesis of MnFe2O4 (MFO) nanoparticles carried out by using sol - gel citrate method followed by calcinations. The nanocomposite was characterized by means of x-ray powder diffraction. Obtained XRD measurement data was crystalline in phase with a spinel structure. Additionally, sensor performance of undoped and surface modified by 1.5 wt % Pd over MFO were studied under different operating temperature and different reducing gases such as NH3, H2S, CO and ethanol. The result reveals that material exhibit excellent sensitivity and selectivity toward ammonia gas at 1800C proving their applicability in gas sensors.
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