Title of article :
Fabrication and Characterization of Poly Vinyl Alcohol/ Poly Vinyl Pyrrolidone/MnTiO Nanocomposite Membranes for PEM Fuel Cells
Author/Authors :
Attaran, Abdol Mohammad Department of Chemistry - Payame Noor University, Delijan , Hooshyari, Khadijeh Department of Chemistry - Amirkabir University of Technology, Tehran , Javanbakht, Mehran Department of Chemistry - Amirkabir University of Technology, Tehran , Enhessari, Morteza Department of Chemistry - Islamic Azad University - Naragh Branch
Abstract :
PVA (poly vinyl alcohol)-MnTiO (PM) and PVA-PVP (poly 3 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.
Keywords :
PEM fuel cells , Poly vinyl alcohol , Poly vinyl pyrrolidone , Nanocomposite membrans , Proton conductivity
Journal title :
Astroparticle Physics
