| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1290272 | Journal of Power Sources | 2008 | 5 Pages |
Abstract
An anion exchange membrane for alkaline direct ethanol fuel cell (ADEFC) was prepared by doping KOH in polybenzimidazole (PBI) membrane. The distributions of nitrogen, oxygen and potassium in the membrane were analyzed by means of XRD and SEM-EDX, respectively. It was found that free or combined KOH molecules may exist in the PBI matrix, which was helpful for the ionic conductivity of PBI/KOH. Ethanol permeability through this membrane was much lower than that of Nafion®. For ADEFC based on this PBI/KOH membrane electrolyte, the power density was 3 to 6 times of the results in literatures. In addition, the micro-structure of alkali doped PBI and the interaction between KOH and PBI matrix were also speculated logically.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Hongying Hou, Gongquan Sun, Ronghuan He, Zhimou Wu, Baoying Sun,