کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5149858 1497892 2017 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of “bridge” on the performance of organic-inorganic crosslinked hybrid proton exchange membranes via KH550
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Effect of “bridge” on the performance of organic-inorganic crosslinked hybrid proton exchange membranes via KH550
چکیده انگلیسی
A series of novel organic-inorganic crosslinked hybrid proton exchange membranes were prepared using sulfonated poly(arylene ether ketone sulfone) polymers containing carboxyl groups (C-SPAEKS), (3-aminopropyl)-triethoxysilane (KH550), and tetraethoxysilane (TEOS). KH550 acted as a “bridge” after reacting with carboxyl and sulfonic groups of C-SPAEKS to form covalent and ionic crosslinked structure between the C-SPAEKS and SiO2 phase. The crosslinked hybrid membranes (C-SPAEKS/K-SiO2) were characterized by FT-IR spectroscopy, TGA, and electrochemistry, etc. The thermal stability, mechanical properties and proton conductivity of the crosslinked hybrid membranes were improved by the presence of both crosslinked structure and inorganic phase. The proton conductivity of C-SPAEKS/K-SiO2-8 was recorded as 0.110 S cm−1, higher than that of Nafion® (0.028 S cm−1) at 120 °C. Moreover, the methanol permeability of the C-SPAEKS/K-SiO2-8 was measured as 3.86 × 10−7 cm2 s−1, much lower than that of Nafion® 117 membranes (29.4 × 10−7 cm2 s−1) at 25 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 340, 1 February 2017, Pages 126-138
نویسندگان
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