کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9632200 | 461762 | 2005 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Aminopropyl-functionalized mesoporous silicas as CO2 adsorbents
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
A range of mesoporous silica substrates were functionalized with 3-aminopropyltrimethoxysilane to form hybrid products suitable for carbon dioxide adsorption. A 'cylindrical pore' model was employed to characterize the extent of surface modification per unit substrate surface area and to permit its comparison on a common basis. The extent of surface functionalisation varied with substrate morphology. Combined DTA/TGA was used to characterise CO2 adsorption. Substantial reversible CO2 adsorption capacities were observed under anhydrous conditions (at 20 °C). In the presence of water, CO2 capacity was enhanced, but the rate of desorption was diminished.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 86, Issues 14â15, October 2005, Pages 1435-1448
Journal: Fuel Processing Technology - Volume 86, Issues 14â15, October 2005, Pages 1435-1448
نویسندگان
Gregory P. Knowles, Jeremy V. Graham, Seamus W. Delaney, Alan L. Chaffee,