کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1481769 | 1510487 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Novel ceramic composite membranes for low-temperature fuel cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Novel ceramic composite membranes for low-temperature fuel cells Novel ceramic composite membranes for low-temperature fuel cells](/preview/png/1481769.png)
چکیده انگلیسی
A new class of proton-conducting glass ceramic composite membranes was developed for low-temperature fuel cells. According to characterizations, these membranes demonstrated good mechanical, structural, thermal and textural properties. Moreover, they yielded a high proton conductivity of 10â 2 S cmâ 1 at room temperature. An electrode consisting of a heteropolyacid dispersed in a catalyst layer was also prepared and characterized, and the cell performances when using the composite membranes of PWA/PMA doped with either ZrO2 or TiO2 glass together with the heteropoly acid electrode were extremely high as compared to counterparts with a phosphosilicate glass electrolyte, at room temperature. The cell evaluation was performed on two ceramic composite membranes, i.e., PWA/PMA-TiO2-P2O5-SiO2 (1/1/3/5/90 mol %) and PWA/PMA-ZrO2-P2O5-SiO2 (1/1/3/5/90 mol %), with the same catalyst and with an operation equivalent to that in hydrogen and oxygen fuel cells, and the former membrane was found to present the best properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 356, Issues 50â51, November 2010, Pages 2799-2802
Journal: Journal of Non-Crystalline Solids - Volume 356, Issues 50â51, November 2010, Pages 2799-2802
نویسندگان
Uma Thanganathan, Masayuki Nogami,