کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1625116 | 1516425 | 2008 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Optimization of LaMO3 (M: Mn, Co, Fe) synthesis through the polymeric precursor route
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
LaMO3 (Me: Mn, Co, Fe) powders were synthesized through a Pechini-type polymerizable complex route, based on the ability of citric acid (CA) to form stable metal chelates and the polyesterification between CA and ethylene glycol (EG). The effect of the molar ratios of reactants (CA:total cations = 1-4 and EG:CA = 1-3) on the precursors and the final powders was studied. The gelation procedure was monitored through continuous conductivity measurements. The calcination reactions were recorded using TG/DTA measurements, while XRD and FTIR were used for the characterization of the precursors and the final products. The results indicated that the polymerizable complex method can be successfully applied for the preparation of LaMO3. The formation requires a 3-h calcination at 600 °C. The molar ratios citric acid:total cations = 2 and ethylene glycol:citric acid = 3 are the most favorable ratios for the synthesis of LaMO3.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 451, Issues 1â2, 28 February 2008, Pages 305-308
Journal: Journal of Alloys and Compounds - Volume 451, Issues 1â2, 28 February 2008, Pages 305-308
نویسندگان
A. Gaki, O. Anagnostaki, D. Kioupis, T. Perraki, D. Gakis, G. Kakali,