Electrical, Magnetic and Catalytic Investigations on Some Manganite Perovskites Prepared by Combustion Method

J Mater Sci Technol ›› 2010, Vol. 26 ›› Issue (12): 1098-1102.

• Mechanical and Functional Properties of Materials • Previous Articles Next Articles

Electrical, Magnetic and Catalytic Investigations on Some Manganite Perovskites Prepared by Combustion Method

R.G. Shetkar, A.V. Salker

Department of Chemistry, Goa University, Goa 403206, India

Received:2009-10-19 Revised:2009-12-02 Online:2010-12-31 Published:2010-12-21
Contact: Arun Salker

Abstract

Abstract: AMnO₃ (A=Sr, Sm and Nd) manganites with perovskite structure, prepared by combustion method were characterized by X-ray diffraction (XRD), infra-red spectroscopy, Brunauer-Emmett-Teller (BET) surface area analyzer and scanning electron microscopy (SEM). The solid state and spectroscopic studies such as electrical resistivity, magnetic susceptibility, electron spin resonance (ESR) and diffuse reflectance spectroscopy were carried out and attempted to correlate with the catalytic activities of the compounds. To evaluate the catalytic activity, a model reaction of CO oxidation over these compounds was undertaken. An attempt was made to understand the effect of A-site change by different metal cations in the manganite perovskites on solid state and catalytic properties.

Key words: Perovskites, Combustion method, Solid state studies, Carbon monoxide oxidation

R.G. Shetkar A.V. Salker. Electrical, Magnetic and Catalytic Investigations on Some Manganite Perovskites Prepared by Combustion Method[J]. J Mater Sci Technol, 2010, 26(12): 1098-1102.

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Electrical, Magnetic and Catalytic Investigations on Some Manganite Perovskites Prepared by Combustion Method

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