کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9614655 | 48542 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrogenation catalysts formation in the system AlEt3-Co(acac)2,3
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Formation of catalytically active species in the system AlEt3-Co(acac)2 known as a catalyst for hydrogenation and polymerization is discussed based on the results of chemical, kinetic and physico-chemical (ESR, IR, UV, TEM, XRD) analysis. The formation of nanoscale cobalt metal particles is demonstrated. The particles are assumed to comprise the metal core and a stabilizing coating consisting of AlEt3, Et2Al(acac) and the products of their transformations. The dependence of hydrogenation activity of the catalytic system on the Al/Co ratio passes through maximum, that is explained by changes of the composition of the nanoparticle stabilizing coating.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 235, Issues 1â2, 1 July 2005, Pages 161-172
Journal: Journal of Molecular Catalysis A: Chemical - Volume 235, Issues 1â2, 1 July 2005, Pages 161-172
نویسندگان
F.K. Shmidt, L.O. Nindakova, B.A. Shainyan, V.V. Saraev, N.N. Chipanina, V.A. Umanetz,