کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
597711 | 1454072 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Zeolite membrane with orientation-controlled hexagonal crystals from a mesostructured gel supported on γ-Al2O3
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The crystals well oriented zeolite membranes were synthesized by the vapor-phase transformation (VPT) of the mesostructured gel coated and spinning on γ-Al2O3 substrate and characterized by a series of techniques such as XRD, SEM, TEM and elemental analysis. It is shown that the orientation of crystals can be controlled by variation of synthesis atmosphere and the compactness and the thickness of the membrane can be tailored by variation of the coating method and the number of coated layers. The gas separation performances of synthesized membranes have been evaluated. The selectivity of C3H8/O2 of membrane obtained by dip coating is much higher than that by spin coating due to the difference in compactness of these membranes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 300, Issues 1–2, 1 June 2007, Pages 94–98
Journal: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Volume 300, Issues 1–2, 1 June 2007, Pages 94–98
نویسندگان
Viorica Parvelescu, Cristina Tablet, Bao-Lian Su,