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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
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
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
نویسندگان
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