این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Polyolefins Journal، جلد ۳، شماره ۱، صفحات ۴۷-۵۷
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Probing into morphology evolution of magnesium ethoxide particles as precursor of Ziegler-Natta catalysts
چکیده انگلیسی مقاله Mg(OEt)2 with spherical morphology is one of the most important precursors for the preparation of industrialZiegler-Natta catalysts. In the present article, morphology evolution of Mg(OEt)2 particles is studied in the courseof the synthesis. The morphology of Mg(OEt)2 particles is observed throughout the process by SEM. The resultsshow that Mg(OEt)2 particles are formed through i) seed generation on Mg surfaces, ii) seed growth and isolationas independent particles, and iii) further growth and shaping into smoother and more spherical particles. The sizeof Mg sources greatly affects the rates of these processes to different extents. A larger size of Mg leads to slowerseed formation and growth, and detachment of clustered seeds, making the final particles larger and less spherical,respectively. The crystal growth of Mg(OEt)2 is also affected by the size of Mg sources, which in turn differentiatesthe pore size distribution to affect the catalyst composition and performance.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله goond hongmanee |
school of materials science, japan advanced institute of science and technology, 1-1 asahidai, nomi, ishikawa 923-1292, japan

patchanee chammingkwan |
school of materials science, japan advanced institute of science and technology, 1-1 asahidai, nomi, ishikawa 923-1292, japan

toshiaki taniike |
school of materials science, japan advanced institute of science and technology, 1-1 asahidai, nomi, ishikawa 923-1292, japan

minoru terano |
school of materials science, japan advanced institute of science and technology, 1-1 asahidai, nomi, ishikawa 923-1292, japan

نشانی اینترنتی http://poj.ippi.ac.ir/article_1266_355.html
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات