2011 Fiscal Year Final Research Report
Oxygen mass transport across ionomer in polymer electrolyte fuel cells
| Project/Area Number |
21550174
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Functional materials/Devices
|
|---|
| Research Institution | Doshisha University |
|---|
Principal Investigator |
INABA Minoru 同志社大学, 理工学部, 教授 (80243046)
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Keywords | 電池 / 燃料電池 |
|---|
| Research Abstract |
Oxygen mass transport across membranes and ionomer thin films was investigated by electrochemical methods using platinum microelectrodes. The oxygen permeability in hydrocarbon membranes was much lower than that in perfluorinated membrane. Hence an improvement of oxygen permeability is important for hydrocarbon-based ionomers. It was also found that the rate-determining step in oxygen permeation across ionomer thin films of thickness thinner than 500 nm is the rate of oxygen dissolution at the ionomer/gas interface.
|
