| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 181809 | Electrochemistry Communications | 2009 | 4 Pages |
Abstract
Novel water-retention proton exchange membrane of Nafion-phosphotungstic acid/mesoporous silica with hydrophilic capillaries has been fabricated to improve the elevated temperature performance of the PEM fuel cells. Due to the hydrophilic capillarity of the HPW/meso-SiO2 mesoporous structure, the Nafion-HPW/meso-SiO2 composite membrane retained 23.7 wt% of water after being dried in 100 °C for 2 h and then exposed in 25 RH% gas for 2 h. As a result, under the condition of elevated temperature of 120 °C and low humidity of 25 RH%, the Nafion-HPW/meso-SiO2 composite membrane showed a steady performance.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Xue-Min Yan, Ping Mei, Yuanzhu Mi, Lin Gao, Shaoxiong Qin,