کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
68864 48525 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reduction of benzaldehyde on alkaline earth metal oxides
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Reduction of benzaldehyde on alkaline earth metal oxides
چکیده انگلیسی

Benzaldehyde reduction was studied over alkaline earth metal oxide catalysts and carried out in a nitrogen or a dihydrogen atmosphere at the 100–350 °C of the range reaction temperature. The results show that benzyl alcohol is produced by the Cannizzaro reaction under nitrogen flow on MgO oxide and by direct hydrogenation under dihydrogen on irreducible oxides such as CaO, BaO and SrO. The Cannizzaro reaction involves the basic hydroxyl groups and is followed by the reduction of benzoate species by H2 to benzaldehyde. Toluene and benzene were produced at high reaction temperature under N2 flow over alkaline earth oxides from a reaction involving benzylate species. Under H2 flow, toluene and benzene were also formed by means of consecutive reduction reactions.The present work deals with the acid–base properties of alkaline earth metal oxide catalysts (MgO, CaO, BaO, SrO) and benzaldehyde reduction was used as probe reaction for characterizing the surface properties.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 258, Issues 1–2, 2 October 2006, Pages 59–67
نویسندگان
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