کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
57069 | 47106 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and characterization of mesoporous γ-alumina templated by saccharide molecules
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A series of mesoporous alumina was prepared using a selected group of saccharide molecules including glucose, sucrose, starch and β -cyclodextrin as structure-directing templates in aqueous system. The influence of pH value was also investigated. The products were characterized using X-Ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Magic-Angle Spinning Nuclear Magnetic Resonance (27Al MAS NMR) and N2 sorption methods. The results show that the properties of products are influenced by the initial pH value of the system, and the molecular size of the templates has a great effect on the physical properties of products. According to the results and disccusion, the templating formation mechanism was tentatively postulated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 147, Supplement, September 2009, Pages S46–S50
Journal: Catalysis Today - Volume 147, Supplement, September 2009, Pages S46–S50
نویسندگان
Benjing Xu, Jun Long, Huiping Tian, Yuxia Zhu, Xin Sun,