کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7727268 | 1497905 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Graphene-doped electrospun nanofiber membrane electrodes and proton exchange membrane fuel cell performance
ترجمه فارسی عنوان
الکترودهای غشایی نانوفیبری الکترود الکترو اسپور گرافن و عملکرد سلول های غشایی تبادل پروتون
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
چکیده انگلیسی
A rational electrode structure can allow proton exchange membrane (PEM) fuel cells own high performance with a low noble metal loading and an optimal transport pathway for reaction species. In this study, we develop a graphene doped polyacrylonitile (PAN)/polyvinylident fluoride (PVDF) (GPP) electrospun nanofiber electrode with improved electrical conductivity and high porosity, which could enhance the triple reaction boundary and promote gas and water transport throughout the porous electrode. Thus the increased electrochemical active surface area (ECSA) of Pt catalysts and fuel cell performance can be expected. As results, the ECSA of hot-pressed electrospun electrodes with 2Â wt% graphene oxide (GO) is up to 84.3Â m2/g, which is greatly larger than that of the conventional electrode (59.5Â m2/g). Significantly, the GPP nanofiber electrospun electrode with Pt loading of 0.2Â mg/cm2 exhibits higher fuel cell voltage output and stability than the conventional electrode.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 327, 30 September 2016, Pages 384-393
Journal: Journal of Power Sources - Volume 327, 30 September 2016, Pages 384-393
نویسندگان
Meng Wei, Min Jiang, Xiaobo Liu, Min Wang, Shichun Mu,