کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
57174 47109 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tetralin oxidation over chromium-containing molecular sieve catalysts
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Tetralin oxidation over chromium-containing molecular sieve catalysts
چکیده انگلیسی

A series of catalysts in which a transition metal (Fe, Co, and Cr) is incorporated into MCM-41, hexagonal mesoporous aluminophosphate (HMA), and AlPO4-5 matrix was prepared and tested for liquid phase oxidation of tetralin using tert-butyl hydroperoxide as an oxidizing agent. In general, chromium-containing catalysts showed higher catalytic activity as well as higher α-tetralone selectivity than iron or cobalt-incorporated catalysts. In addition, HMA proved more effective as a support material than MCM-41. CrHMA was the most active (64.9% conversion) and selective (80% α-tetralone selectivity) catalyst, but developed metal leaching due to its amorphous pore walls. CrAlPO4-5, having a crystalline structure, showed higher resistance to metal leaching than CrHMA.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 132, Issues 1–4, 31 March 2008, Pages 52–57
نویسندگان
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