کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1286543 | 973194 | 2007 | 5 صفحه PDF | دانلود رایگان |
A novel functional organoclay was prepared using POP-backboned quaternary ammonium salts that contained sulfonic acid (–SO3H) to improve the performance of Nafion® membranes used in direct methanol fuel cells. Modified layered silicate clays were cast with Nafion®. The performance of the Nafion®/MMT-POPD400-PS composite membranes was evaluated in terms of methanol permeability, proton conductivity and cell performance. The methanol permeability of the composite membrane declined as the MMT-POPD400-PS content increased. The MMT was functionalized using organic sulfonic acid to enhance proton conductivity. The proton conductivity of the composite membrane exceeded that of pristine Nafion®. These effects essentially improved the single-cell performance of DMFC.
Journal: Journal of Power Sources - Volume 168, Issue 1, 25 May 2007, Pages 162–166