توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Synthesis and Characterization of Poly Vinyl Alcohol\ Poly Vinyl Pyrrolidone\Mntio3Nano–Hybrids for Pem Fuel Cells
اطلاعات انتشار: Iranica Journal of Energy & Environment، چهارم،شماره۲، ۲۰۱۳، سال
تعداد صفحات: ۵
PVA (poly vinyl alcohol)–MnTiO3 (PM) and PVA–PVP (poly vinyl pyrrolidone)–MnTiO3 (PPM) nanocomposite membranes have been prepared with solutions casting method. Glutaraldehyde (GA) was used as cross linking agent. The results showed that the proton conductivity and water uptake of the nanocomposite membranes due to hydrophilic nature of MnTiO3 nanoparticles were higher than that of the PVA membrane. PPM membranes containing 5 wt. % of MnTiO3nanoparticles and PVA:PVP 80:20, demonstrated higher thermal stability, water uptake (310?) and proton conductivity (2.1 ×10 2 S\cm) than PM membranes, due to hydrophilic effect of PVP, which can made strong hydrogen–bonding, intense intra–molecular interaction and reduce the crystallinity of the PVA polymer.
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