Preparation and characterization of La1−yCeyFeO3 perovskites catalysts obtained from different methods
Mahdi Mousavi
Mahdi Mousavi
Department of applied chemistry, faculty of chemistry, university of kashan, Kashan, Iran
زبان مقاله : انگلیسی |
تعداد صفحات مقاله : 1 صفحه |
نوع مقاله : چکیده |
ISC کد مقاله در : ISC4026_524690
چکیده
Double oxides are one of the two major groups of mixed oxides. Perovskites are defined here as double oxides having perovskite (ABO3) and related structures. Because of their thermal stability and a variety of physical and chemical properties, which can be controlled by choosing constituent elements, they are widely used as catalysts as well as electronic and magnetic materials. This article reports the physico-chemical properties of LaFeO3 and substituted La1−yCeyFeO3 (y=0.05, 0.1, 0.15 and 0.2) were prepared by of oxidative precipitation and comparison of its performance with that of obtained from conventional sol gel combustion method. The prepared perovskites were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy. The XRD results shows the crystallite size of perovskites prepared by sol gel was larger than those prepared by oxidative precipitation. Characterization data confirmed CeO2 segregation occurred to at y ≥ 0.15 for both methods.کليدواژه ها
perovskites, oxidative precipitation, sol gel combustion, characterizationنحوه استناد به مقاله
در صورتی که می خواهید در اثر پژوهشی خود به این مقاله ارجاع دهید، به سادگی می توانید از عبارت زیر در بخش منابع و مراجع استفاده نمایید:Mousavi , Mahdi , 1398 , Preparation and characterization of La1−yCeyFeO3 perovskites catalysts obtained from different methods , دومین کنفرانس ملی کاتالیست انجمن شیمی ایران
انتشار دهنده
محل انتشار : دومین کنفرانس ملی کاتالیست انجمن شیمی ایرانمشخصات برگزارکننده همایش : دانشگاه خوارزمي
تعداد مقالات : 215
کد اختصاصی :
۹۸۱۹۱-۲۸۷۱۶
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