کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
642773 | 884337 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Defects in microporous silica membranes: Analysis and repair
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Defects in microporous silica membranes: Analysis and repair Defects in microporous silica membranes: Analysis and repair](/preview/png/642773.png)
چکیده انگلیسی
A low temperature (300 °C) CVI technique was employed to modify commercial sol–gel silica membranes, in order to repair defects often formed in their top sol–gel layer. Membranes were characterized before and after modification in terms of permeance and permselectivity with the use of He and N2. The permselectivity of the sol–gel silica membranes varied between 3.2 and 52, while after the CVI treatment the permselectivity increased to 68–308. Moreover, a simple model was developed in order to estimate the defect concentration in silica membranes and assess their influence in the membranes performance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 73, Issue 1, 28 May 2010, Pages 20–24
Journal: Separation and Purification Technology - Volume 73, Issue 1, 28 May 2010, Pages 20–24
نویسندگان
D. Koutsonikolas, S. Kaldis, G.P. Sakellaropoulos, Martijn H. van Loon, Ruud W.J. Dirrix, Rinse A. Terpstra,