| A Hybrid Membrane of Poly(vinyl alcohol) and Phosphotungstic Acid for Fuel Cells |
| |
| 作者姓名： | 李磊 王宇新 |
| |
| 作者单位： | LI Lei WANG YuxinChemical Engineering Research Center，Tianjin University，Tianjin 300072，China |
| |
| 基金项目： | Supported by the National Natural Science Foundation of China (No. 29976033) and the State Key Basic Science Research Project (G20000264). |
| |
| 摘 要： | Proton conducting membranes composed of phosphotungstic acid (PWA) and poly(vinyl alcohol) (PVA) were prepared. Conductivity and Fourier transform infrared spectrometer(FTIR) measurements show that most of the acid embedded are stable in the PVA matrix when the membrane is immerged in water or methanol solution at room temperature. Conductivity of the composite membranes scatters around 10-3S·cm-1 at room temperature. The methanol crossover through the membranes is about an order of magnitude lower than that through Nafion 117 membrane.
|
A Hybrid Membrane of Poly(vinyl alcohol) and Phosphotungstic Acid for Fuel Cells |
| |
| LI Lei WANG YuxinChemical Engineering Research Center,Tianjin University,Tianjin ,China.A Hybrid Membrane of Poly(vinyl alcohol) and Phosphotungstic Acid for Fuel Cells[J].Chinese Journal of Chemical Engineering,2002(5). |
| |
| Authors: | LI Lei WANG YuxinChemical Engineering Research Center Tianjin University Tianjin China |
| |
| Affiliation: | LI Lei WANG YuxinChemical Engineering Research Center,Tianjin University,Tianjin 300072,China |
| |
| Abstract: | Proton conducting membranes composed of phosphotungstic acid (PWA) and poly (vinyl alcohol) (PVA) were prepared. Conductivity and Fourier transform infrared spectrometer(FTIR) measurements show that most of the acid embedded are stable in the PVA matrix when the membrane is immerged in water or methanol solution at room temperature. Conductivity of the composite membranes scatters around 10-3S cm-1 at room temperature. The methanol crossover through the membranes is about an order of magnitude lower than that through Nafion 117 membrane. |
| |
| Keywords: | fuel cell proton conductor composite membrane poly(vinyl alcohol) phosphotungstic acid |
| 本文献已被 CNKI 等数据库收录！ |
