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Vol. 139, No. 4, April 2012, pp. 109-121




Nanostructured Ni0.5Zn0.5Ce3O5 Oxide Based Electronic Nose Sensitive to Ammonia at Operable Temperature



Metal Oxide Research, Laboratory, Department of Chemistry, Dr. Patangrao Kadam Mahavidyalaya, Sangli, 416416 (M.S.) India

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

E-mail: bangale_sv@rediffmail.com



Received: 22 March 2012   /Accepted: 23 April 2012   /Published: 30 April 2012


Digital Sensors and Sensor Sysstems


Abstract: Semiconductive nanoparticles of Ni0.5Zn0.5Ce3O5 were synthesized by a solution combustion technique. This process is a convenient, environment friendly, inexpensive and efficient for the preparation of Ni0.5Zn0.5Ce3O5 nanomaterial. The synthesized material is characterized by Thermo gravimetric Differential analysis (TG/DTA), X-ray Diffraction studied (XRD), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques. Conductance response of the nanocrystalline Ni0.5Zn0.5Ce3O5 thick film is measured by exposing the film to reducing gases like ammonia, liquefied petroleum gas (LPG), hydrogen (H2), acetone, carbon dioxide (CO2) and ethanol. The sensor exhibited a fast response and a good recovery. The results demonstrated that Ni0.5Zn0.5Ce3O5 can be used as a gas-sensing material which has a high sensitivity and good selectivity to ammonia gas at 100 ppm.


Keywords: Nanostructured Ni0.5Zn0.5Ce3O5, XRD, TEM, Ammonia gas sensors



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