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

A. B. Gadkari1*, T.J. Shinde2, P.N. Vasambekar3

1Department of Physics and Electronics, GKG College, Kolhapur 416 012, India

2Department of Physics, Smt KRP Kanya Mahavidyalaya, Islampur 416 409. India

3Department of Electronics, Shivaji University, Kolhapur 416 004, India

Adv. Mater. Lett., 2013, Current Issue, 4 (7), pp 573-576

DOI: 10.5185/amlett.2012.10430

Publication Date (Web): May 01, 2013

E-mail: ashokgadkari@yahoo.com

Abstract


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 100-400oC. The sensor shows highest sensitivity at operating temperature 225oC for LPG (~ 78%). It shows good sensitivity at operating temperature of 198oC for Cl2 (~75%) and ethanol (~ 65%). The sensor exhibits a lower response and recovery time for LPG and Cl2 as compared to C2H5OH.

Keywords

Sensitivity, Selectivity, response/recovery time, grain size.

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