کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1572755 1000701 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterizations on the microstructures of LiMn2O4 prepared by a simple soft-chemical technique
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Characterizations on the microstructures of LiMn2O4 prepared by a simple soft-chemical technique
چکیده انگلیسی

LiMn2O4 powders were prepared by a simple soft-chemical technique at different temperatures. X-ray diffraction and thermogravimetric analysis suggested that the material prepared at 800 °C was stoichiometric LiMn2O4, whereas those prepared at 600 and 700 °C were Li[Mn0.773+Mn1.234+]O4.115 and Li[Mn0.853+Mn1.154+]O4.075. Several typical XRD peaks of the compounds were investigated with an aim to elucidate (i) the Li immigration to the 16d octahedral sites, (ii) the partial tetragonal phase transition of the material and (iii) the mean coherent domain size and microstrain. SEM study showed that the particle size of the materials increased with heating temperature. The activation energy for the material particle growth was determined as 30.4 kJ mol− 1.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 59, Issue 9, September 2008, Pages 1196–1200
نویسندگان
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