کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
76178 49133 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
MCM-41 anchored manganese salen complexes as catalysts for limonene oxidation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
MCM-41 anchored manganese salen complexes as catalysts for limonene oxidation
چکیده انگلیسی

This work reports the covalent attachment of three different salen-based complexes on MCM-41, using two different methods. In both methods, a diisocyanate is used as a binder. All the prepared catalysts were tested on the liquid phase limonene oxidation reaction, using diluted t-butyl hydroperoxide as oxidant. Limonene oxide, carveol, carvone and a polymer were the main products obtained. The preservation of the MCM-41 channel system was checked by X-ray diffraction, nitrogen adsorption analysis and transmission electron microscopy (TEM). Catalytic activity seems to increase in the following order: Mn(4-OHsalen) < Mn(4-OHsalhd) < Mn(4-OHsalophen).The most active catalysts were used in four consecutive experiments without any activity loss, confirming the success of the anchoring process and the catalysts stability.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 120, Issue 3, 15 April 2009, Pages 432–440
نویسندگان
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