کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
633655 1456039 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of number of cross-linkable sites on proton conducting, pore-filling membranes
ترجمه فارسی عنوان
اثر تعدادی از سایت های متقابل لینک بر رسوب پروتون، غشاهای پرکننده منفذ
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی
Highly cross-linked membranes were prepared using a pore-filling technique for application in polymer electrolyte fuel cells (PEFCs). The electrolyte that fills the porous substrate should have a higher ion exchange capacity (IEC) than membranes prepared by a casting method. Hence, a cross-linking agent is employed to prevent the polymer electrolyte from dissolving in water. The goal of this study is to improve the chemical, mechanical, and electrochemical stability in membranes without decreasing the IEC. We evaluated the membrane characteristics using two different types of cross-linking agents-1,3,5-triacryloylhexahydro-1,3,5-triazine (C1) with three cross-linkable sites and N,N′-ethylene bisacrylamide (C2) with two cross-linkable sites. The membranes with C1 improved the chemical and electrochemical properties without a remarkable decrease in the IEC and proton conductivity compared to the membranes created with C2. Moreover, the C1 membrane also demonstrated an improvement in the electrochemical durability during the accelerated lifetime test.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 460, 15 June 2014, Pages 178-184
نویسندگان
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