Electrical, magnetic and Catalytic studies over some manganite perovskites prepared by combustion method

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

• Research Articles • 上一篇下一篇

Electrical, magnetic and Catalytic studies over some manganite perovskites prepared by combustion method

Arun Salker

Goa University

收稿日期:2009-10-19 修回日期:2009-12-02 出版日期:2010-12-31 发布日期:2010-12-21
通讯作者: Arun Salker

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

摘要/Abstract

摘要： AMnO3 (A = Sr, Sm and Nd) manganites with perovskite structure, prepared by combustion method were characterized by XRD, infra-red spectroscopy, BET surface area and SEM techniques. The solid state and spectroscopic studies such as electrical resistivity, magnetic susceptibility, electron spin resonance (ESR) and diffuse reflectance spectroscopy have been 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 has been made to understand the effect of A-site change by different metal cations in the manganite perovskites on solid state and catalytic properties.

关键词: Perovskites, Combustion method, Solid state studies, Carbon monoxide oxidation

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

Arun Salker. Electrical, magnetic and Catalytic studies over some manganite perovskites prepared by combustion method[J]. J. Mater. Sci. Technol., 2010, 26(12): 1098-1102.

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 studies over some manganite perovskites prepared by combustion method

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

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