کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9684694 | 1456209 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Low water uptake content and low water/methanol transport in CP/Nafion hybrid membrane with high non-hydrogen bonding
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Low water uptake content and low water/methanol transport in CP/Nafion hybrid membrane with high non-hydrogen bonding Low water uptake content and low water/methanol transport in CP/Nafion hybrid membrane with high non-hydrogen bonding](/preview/png/9684694.png)
چکیده انگلیسی
We investigated the relation between water uptake content and water/methanol transport and non-hydrogen bonding ratio for the cast Nafion and calcium phosphate (CP)/Nafion composite membranes. The water/methanol uptake content was evaluated with FT-IR, vacuum-drying method and thermogravimetry (TG). It was found that composite membranes have lower water/methanol uptake content with increasing CP compared to cast Nafion. We evaluated the non-hydrogen (NH) bonding ratio (RA), representing the ratio of the non-hydrogen bonding to the sum of NH-bonding and H-bonding. As a result, RA increased in the CP/Nafion composite membrane compared to the cast Nafion. It is due to the formation of new non-hydrogen bonding interaction between CF main backbone and OHâ in the incorporated CP. On the other hand, water/methanol permeability, measured by water sorption/desorption and methanol permeation tests, decreased in the CP/Nafion composite membranes. Finally, we can conclude that lower water/methanol uptake and water/methanol transport in the composite membranes result from the formation in new non-hydrogen bonding due to the incorporation of CP.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 261, Issues 1â2, 15 September 2005, Pages 58-66
Journal: Journal of Membrane Science - Volume 261, Issues 1â2, 15 September 2005, Pages 58-66
نویسندگان
Young-Sun Park, Yohtaro Yamazaki,