Liquid Petrolium Gas Sensor Based On Nanocrystallite Mg0.6Cd0.4Fe2O4

The Mg0.6Cd0.4Fe2O4 ferrite powder was synthesized by oxalate co-precipitation method. The crystal structure and surface morphology were examined by XRD, SEM and FT-IR techniques. The nanocrystallite Mg0.6Cd0.4Fe2O4 sensor was tested for LPG, Cl2 and C2H5OH. The sensitivity was measured at various operating temperatures in the range of 100-400 o C. The sensor shows highest sensitivity at operating temperature 225 o C for LPG (~ 78%). It shows good sensitivity at operating temperature of 198 o C for Cl2 (~75%) and ethanol (~ 65%). The sensor exhibits a lower response and recovery time for LPG and Cl2 as compared to C2H5OH.