کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
637458 883686 2008 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel anion-exchange organic–inorganic hybrid membranes: Preparation and characterizations for potential use in fuel cells
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Novel anion-exchange organic–inorganic hybrid membranes: Preparation and characterizations for potential use in fuel cells
چکیده انگلیسی

A new series of supported anion-exchange organic–inorganic hybrid membranes were prepared by quaternizing the copolymer of vinylbenzyl chloride (VBC) and γ-methacryloxypropyl trimethoxy silane (γ-MPS) and then applying a sol–gel reaction to the copolymer and monophenyltriethoxysilane (EPh). The membranes were characterized for potential use in fuel cells. The results show that the physicochemical properties, including ion-exchange property, hydrophilicity, and thermal/chemical stability, can be easily controlled by adjusting the quaternization extent of the copolymer and the dosage of EPh. The hybrid membranes have relatively strong alkali resistance, high temperature tolerance (thermal degradation temperature in air, Td, in the range of 250–300 °C), high tensile strength (TS) and elongation at break (Eb). The hydroxyl ion conductivity is in the range of 2.27–4.33 × 10−4 S/cm.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 321, Issue 2, 15 August 2008, Pages 299–308
نویسندگان
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