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Vol. 134, Issue 11, November 2011, pp.107-119




Nanostructured Spinel ZnFe2O4 for the Detection of Chlorine Gas


1 S. V. Bangale, 2 D. R. Patil and 1 S. R. Bamane

1 Metal Oxide Research, Laboratory, Department of Chemistry, Dr. Patangrao Kadam

 Mahavidyalaya, Sangli 416416 (M.S.) India

2 Bulk and Nano Materials Research Lab, Dept. of Physics, Rani Laxmibai College

Parola, Dist Jalgaon, 425111

Tel.: 0233-2535993, fax: No.0233-2535993

E-mail: bangale_sv@rediffmail.com, sambhajibamane@yahoo.com



Received: 1 July 2011   /Accepted: 21 November 2011   /Published: 29 November 2011

Handbook of Laboaratory Measurements book


Abstract: Semiconductive nanometer-size material ZnFe2O4 was synthesized by a solution combustion reaction of inorganic reagents of Zn(NO3)3. 6H2O, Fe(NO3)3.9H2O and Urea as a fuel. The process was a convenient, environment friendly, inexpensive and efficient preparation method for the ZnFe2O4 nanomaterial. Effects of the calcining temperature on the phase constituents characterized by TG-DTA, X-ray diffraction (XRD) was used to confirm the material structure, The as-prepared samples were further characterized by scanning electron microscopy (SEM) equipped with energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM). To depict the crystallite microstructure. Conductance responses of the nanocrystalline ZnFe2O4 thick film were measured by exposing the film to reducing gases like Acetone, Ethanol, Ammonia (NH3), Hydrogen (H2), Hydrogen sulphide (H2S), Chlorine (Cl2) and Liquefied petroleum gas (LPG). It was found that the sensors exhibited various sensing responses to these gases at different operating temperature. Furthermore, the sensor exhibited a fast response and a good recovery. The results demonstrated that ZnFe2O4 can be used as a new type of gas-sensing material which has a high sensitivity and good selectivity to Chlorine (CL2).


Keywords: Solution combustion reaction, Synthesis, ZnFe2O4 nanoparticles, Gas sensor


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