کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9760386 | 1498047 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Composite Nafion/polyphenylene oxide (PPO) membranes with phosphomolybdic acid (PMA) for direct methanol fuel cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Composite Nafion/polyphenylene oxide (PPO) membranes with phosphomolybdic acid (PMA) for direct methanol fuel cells Composite Nafion/polyphenylene oxide (PPO) membranes with phosphomolybdic acid (PMA) for direct methanol fuel cells](/preview/png/9760386.png)
چکیده انگلیسی
The preparation and characterization of new polymer composite membranes containing polyphenylene oxide (PPO) thin films with phosphomolybdic acid (PMA) are presented. PPO thin films with PMA (PPO-PMA films) have been prepared by using the solvent mixture. In this study, methanol was used as a solvent dissolving PMA and chloroform was used as a solvent dissolving PPO. PPO-PMA solutions were cast onto a glass plate. The composite membranes were prepared by casting Nafion mixture on porous PPO-PMA films. The composite membranes were characterized by measuring their ion conductivity and methanol permeability. The morphology and structure of these PPO-PMA films were observed with scanning electron microscopy (SEM), energy dispersive spectrometer (EDS) and wave dispersive spectrometer (WDS). The composite membranes are tested as electrolytes in a direct methanol fuel cells (DMFCs). The performance tests have shown that they have a good perspective in this DMFCs. The methanol cross-over in the DMFC can be reduced by composite membranes containing PPO-PMA barrier films.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 143, Issues 1â2, 27 April 2005, Pages 136-141
Journal: Journal of Power Sources - Volume 143, Issues 1â2, 27 April 2005, Pages 136-141
نویسندگان
Junho Sauk, Jungyeon Byun, Hwayong Kim,