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The effect of variation in sintering temperature (500-900oC/4h) of ZnFe2O4 synthesized by using co-precipitation method on the gas sensing characters. The spinel structure and the presence of residual phases were checked by XRD analysis. Gas sensing response was evaluated as a function of operating temperature for different test gases/vapours such as ammonia (NH3), chlorine (Cl2), LPG, CO2, hydrogen sulphide (H2S) and Hydrogen (H2). Maximum gas response activity was achieved at 3000C concentration for hydrogen sulphide gas... Read More» DOI: