کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10154943 | 1666329 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Anion-exchange membrane for membrane capacitive deionization prepared via pore-filling polymerization in a porous polyethylene supporting membrane
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Most polymer membranes with a high ion-exchange capacity (IEC) are not dimensionally stable in water because of their excess water uptake. In this study, an anion-exchange membrane was synthesized by performing a pore-filling polymerization in a porous polyethylene membrane used as the supporting substrate. The membrane was found to exhibit a high IEC (3.0â¯meq/g) but a very low water uptake (8%) and low electrical resistance (0.30â¯Î©Â·cm2). The membrane capacitive deionization (MCDI) cell assembled from components including the fabricated anion-exchange membrane and a commercial cation-exchange membrane (CMX) was found to exhibit a higher salt adsorption capacity and a higher current efficiency than that using a commercial anion-exchange membrane (AMX, IECâ¯=â¯1.5â¯meq/g, electrical resistanceâ¯=â¯4.8â¯Î©Â·cm2) and CMX. This improved performance compared to that of the AMX cell is ascribed to the higher IEC of the new membrane and its lower electrical resistance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 132, November 2018, Pages 36-42
Journal: Reactive and Functional Polymers - Volume 132, November 2018, Pages 36-42
نویسندگان
Oneeb ul Haq, Jae-Hwan Choi, Youn-Sik Lee,