Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5348534 | Applied Surface Science | 2016 | 6 Pages |
Abstract
The preparation of Nafion membranes modified with montmorillonites is less studied, and most relative works mainly applied in direct methanol fuel cells, less in direct ethanol fuel cells. Organic/inorganic composite membranes are prepared with different montmorillonites (Ca-montmorillonite, Na-montmorillonite, K-montmorillonite, Mg-montmorillonite, and H-montmorillonite) and Nafion solution via casting method at 293Â K in air, and with balance of their proton conductivity and ethanol permeability. The ethanol permeability and proton conductivity of the membranes are comparatively studied. The montmorillonites can well decrease the ethanol permeability of the membranes via inserted them in the membranes, while less decrease the proton conductivities of the membranes depending on the inserted amount and type of montmorillonites. The proton conductivities of the membranes are between 36.0Â mS/cm and 38.5Â mS/cm. The ethanol permeability of the membranes is between 0.69Â ÃÂ 10â6Â cm2/s and 2.67Â ÃÂ 10â6Â cm2/s.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Xiu-Wen Wu, Nan Wu, Chun-Qing Shi, Zhi-Yuan Zheng, Hong-Bin Qi, Ya-Fang Wang,