کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
239352 465819 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanochemical synthesis of zinc oxide nanocrystalline
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Mechanochemical synthesis of zinc oxide nanocrystalline
چکیده انگلیسی

Pure zinc oxide (ZnO) nanocrystalline was successfully prepared by the mechanochemical method followed by a heat-treatment using ZnCl2 and Na2CO3 as reagents, while NaCl was used as a diluent. The samples were characterized by Transmission Electron Microscopy (TEM) and X-ray Diffraction analysis (XRD). The effects of the milling time and the heat-treatment temperature on ZnO nanocrystalline size were investigated in this work. Experimental results show that increasing the milling time can effectively reduce the nanocrystalline size of ZnO. The average crystal size is about 21 nm for the ZnO nanocrystallites by the calcination of the after-milled powder at 600 °C in air and removal of NaCl through washing. The crystal size increases with increasing heat-treatment temperature. The mechanism of nanocrystallite growth is discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Powder Technology - Volume 168, Issue 3, 18 October 2006, Pages 148–151
نویسندگان
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