Abstract
Gas diffusion layers (GDLs) coated with a hydrophobic microporous layer (MPL) have been commonly used to improve water management properties of polymer electrolyte fuel cells (PEFCs). In the present study, a novel hydrophilic and hydrophobic double MPL coated GDL was developed to further enhance the PEFC performance under both low and high humidity conditions. Under low humidity conditions, a thin hydrophilic layer using titanium dioxide coated on the hydrophobic MPL is effective to conserve the humidity of the MEA, while a hydrophobic intermediate MPL between the hydrophilic layer and the GDL substrate prevents the removal of water in the hydrophilic layer. Under high humidity conditions, a double MPL coated GDL is also effective to reduce flooding on the cathode catalyst layer, which results in a higher PEFC performance compared with that for a conventional hydrophobic MPL coated GDL.
| Original language | English |
|---|---|
| Title of host publication | Polymer Electrolyte Fuel Cells 12, PEFC 2012 |
| Pages | 437-444 |
| Number of pages | 8 |
| Edition | 2 |
| DOIs | |
| Publication status | Published - Dec 1 2012 |
| Event | 12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting - Honolulu, HI, United States Duration: Oct 7 2012 → Oct 12 2012 |
Publication series
| Name | ECS Transactions |
|---|---|
| Number | 2 |
| Volume | 50 |
| ISSN (Print) | 1938-5862 |
| ISSN (Electronic) | 1938-6737 |
Other
| Other | 12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting |
|---|---|
| Country | United States |
| City | Honolulu, HI |
| Period | 10/7/12 → 10/12/12 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
Cite this
Influence of hydrophilic and hydrophobic double MPL coated GDL on PEFC performance. / Kitahara, Tatsumi; Nakajima, Hironori; Mori, K.; Inamoto, M.
Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2. ed. 2012. p. 437-444 (ECS Transactions; Vol. 50, No. 2).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Influence of hydrophilic and hydrophobic double MPL coated GDL on PEFC performance
AU - Kitahara, Tatsumi
AU - Nakajima, Hironori
AU - Mori, K.
AU - Inamoto, M.
PY - 2012/12/1
Y1 - 2012/12/1
N2 - Gas diffusion layers (GDLs) coated with a hydrophobic microporous layer (MPL) have been commonly used to improve water management properties of polymer electrolyte fuel cells (PEFCs). In the present study, a novel hydrophilic and hydrophobic double MPL coated GDL was developed to further enhance the PEFC performance under both low and high humidity conditions. Under low humidity conditions, a thin hydrophilic layer using titanium dioxide coated on the hydrophobic MPL is effective to conserve the humidity of the MEA, while a hydrophobic intermediate MPL between the hydrophilic layer and the GDL substrate prevents the removal of water in the hydrophilic layer. Under high humidity conditions, a double MPL coated GDL is also effective to reduce flooding on the cathode catalyst layer, which results in a higher PEFC performance compared with that for a conventional hydrophobic MPL coated GDL.
AB - Gas diffusion layers (GDLs) coated with a hydrophobic microporous layer (MPL) have been commonly used to improve water management properties of polymer electrolyte fuel cells (PEFCs). In the present study, a novel hydrophilic and hydrophobic double MPL coated GDL was developed to further enhance the PEFC performance under both low and high humidity conditions. Under low humidity conditions, a thin hydrophilic layer using titanium dioxide coated on the hydrophobic MPL is effective to conserve the humidity of the MEA, while a hydrophobic intermediate MPL between the hydrophilic layer and the GDL substrate prevents the removal of water in the hydrophilic layer. Under high humidity conditions, a double MPL coated GDL is also effective to reduce flooding on the cathode catalyst layer, which results in a higher PEFC performance compared with that for a conventional hydrophobic MPL coated GDL.
UR - http://www.scopus.com/inward/record.url?scp=84885788869&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84885788869&partnerID=8YFLogxK
U2 - 10.1149/05002.0437ecst
DO - 10.1149/05002.0437ecst
M3 - Conference contribution
AN - SCOPUS:84885788869
SN - 9781607683506
T3 - ECS Transactions
SP - 437
EP - 444
BT - Polymer Electrolyte Fuel Cells 12, PEFC 2012
ER -