کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7736519 1497974 2014 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Proton transfer in the interface of Nafion and sulfonated polypyrrolone
ترجمه فارسی عنوان
انتقال پروتون در رابط نفیون و پولیپیرلون سولفون شده
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
The proton conductivity at the interface of Nafion and sulfonated polypyrrolone composite membrane decreases by 56% from 0.039 S cm−1 to 0.017 S cm−1, due to phase separation after annealing this binary composite membrane at 140 °C, which is 10 °C above the glass transition temperature of Nafion polymer. After annealing the membrane, the change in the relative intensity of the lower angles of the X-ray diffraction (XRD) peaks located at ca. 11.9°, 17.5° and 19.7° indicates an increase of the low spacing region for the polymer chains of the composite membrane and atomic force microscopy (AFM) measurement depicts a morphological evolution from an uniform dispersion to a spherules micro-structure, implying the aggregation of polymer chains of the annealed composite membrane. These results are combined to reveal there is a microphase separation of this binary composite membrane as it is annealed at 140 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 258, 15 July 2014, Pages 5-8
نویسندگان
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