کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1505458 993764 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rapidly synthesis of nanocrystalline MgIn2O4 spinel using combustion and solid state chemistry
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Rapidly synthesis of nanocrystalline MgIn2O4 spinel using combustion and solid state chemistry
چکیده انگلیسی

Nanometric/submicronic powders of magnesium indate spinel MgIn2O4 were prepared with a two-steps process. First, nano-oxides of In2O3 and MgO were obtained by combustion of aqueous solutions of metal nitrates (as an oxidizer) and different fuels (glycine/urea/citric acid). Then, the as-prepared combustion ashes were converted into pure spinels after calcinations at elevated temperature. The as-prepared powders spinels have nanometric or submicronic grain size. This process allows preparing the MgIn2O4 spinel compound in 1 day whilst 10 days were necessary when the classical solid state chemistry is used. In this paper, we compare these two ways and study the effect of different reaction parameters, such as the nature of fuels or the fuel/oxidiser ratio. Crystallites sizes of the synthesized compounds were investigated by powder X-ray diffraction and Scanning Electron Microscopy.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Sciences - Volume 13, Issue 1, January 2011, Pages 42–48
نویسندگان
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