کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
675982 887744 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The solid state reaction between lanthanum oxide and strontium carbonate
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
The solid state reaction between lanthanum oxide and strontium carbonate
چکیده انگلیسی

The reaction between lanthanum oxide and strontium carbonate was studied non-isothermally between 350 and 1150 °C at different heating rates, intermediates and the final solid product were characterized by X-ray diffractometry (XRD). The reaction proceeds through formation of lanthanum oxycarbonate La2O(CO3)2, lanthanum dioxycarbonate La2O2CO3, and non-stoichiometric strontium lanthanum oxide La2SrOx (x = 4 + δ). La4SrO7 was found to be the final product which begins to form at ∼700 °C. Li+ doping enhances the formation of the final product as well as commencement of the reactions at lower temperatures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 445, Issue 1, 1 June 2006, Pages 78–81
نویسندگان
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