کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6527732 | 47571 | 2013 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and characterization of acidic ordered mesoporous organosilica SBA-15: Application to the hydrolysis of cellobiose and insight into the stability of the acidic functions
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
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چکیده انگلیسی
Sulfonated ordered mesoporous organosilica SBA-15 with two distinct local environments of the acid sites (1 and 2) were synthesized, characterized, and applied in acid-catalyzed reactions: cellobiose hydrolysis in hot water and isopropanol dehydration in gas phase. The hybrid catalysts containing sulfonated aromatic ring show a catalytic activity equivalent to that of Amberlyst A15 for the gas-phase dehydration reaction but exhibit an important sulfur leaching in hot water, and not surprisingly to high glucose yields. By contrast, the organosilica SBA-15 which contains sulfonated propyl group are less active in gas phase and in hot water reactions but is more stable in hot water allowing recycling.53
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 305, September 2013, Pages 204-216
Journal: Journal of Catalysis - Volume 305, September 2013, Pages 204-216
نویسندگان
Mariam Karaki, Ali Karout, Joumana Toufaily, Franck Rataboul, Nadine Essayem, Bénédicte Lebeau,