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NANOCOMPOSITE NiFe2O4-Fe2O3-NiO THICK FILM AS LIQUEFIED PETROLEUM GAS SENSOR

Richa Srivastava

Present paper explores the synthesis of nanocomposite NiFe2O4-Fe2O3-NiO and its relevance as liquefied petroleum gas sensor. The as prepared material was characterized using Scanning electron microscope and X-ray diffractometer. The X-ray diffraction reveals the formation of nickel ferrite along with ferric and nickel oxides. The average crystallite size of material was found to be 4.62 nm. SEM images exhibit the porous nature of sensing material with a number of active sites. Thick film of material was fabricated using screen printing techniques and was investigated with the exposition of liquefied petroleum gas. Variations in resistence of thefilm withtime fordifferent concentration of LPG were recordedat room rempereture. The maximum value of sensitivity was found 5733 for 4 vol.% of LPG. These experimental results show that synthesized nanocomposite material is a promising material for LPG sensor.