TY - JOUR
T1 - Development of a novel hydrophobic/hydrophilic double micro porous layer for use in a cathode gas diffusion layer in PEMFC
AU - Chun, Jeong Hwan
AU - Park, Ki Tae
AU - Jo, Dong Hyun
AU - Lee, Ji Young
AU - Kim, Sang Gon
AU - Park, Sun Hee
AU - Lee, Eun Sook
AU - Jyoung, Jy Young
AU - Kim, Sung Hyun
N1 - Funding Information:
This work was supported by New & Renewable Energy R&D program (2008-N-FC12-J-01-2-100) under the Ministry of Knowledge Economy .
PY - 2011/7
Y1 - 2011/7
N2 - In this study, a gas diffusion layer (GDL) was modified to improve the water management ability of a proton exchange membrane fuel cell (PEMFC). We developed a novel hydrophobic/hydrophilic double micro porous layer (MPL) that was coated on a gas diffusion backing layer (GDBL). The water management properties, vapor and water permeability, of the GDL were measured and the performance of single cells was evaluated under two different humidification conditions, R.H. 100% and 50%. The modified GDL, which contained a hydrophilic MPL in the middle of the GDL and a hydrophobic MPL on the surface, performed better than the conventional GDL, which contained only a single hydrophobic MPL, regardless of humidity, where the performance of the single cell was significantly improved under the low humidification condition. The hydrophilic MPL, which was in the middle of the modified GDL, was shown to act as an internal humidifier due to its water absorption ability as assessed by measuring the vapor and water permeability of this layer.
AB - In this study, a gas diffusion layer (GDL) was modified to improve the water management ability of a proton exchange membrane fuel cell (PEMFC). We developed a novel hydrophobic/hydrophilic double micro porous layer (MPL) that was coated on a gas diffusion backing layer (GDBL). The water management properties, vapor and water permeability, of the GDL were measured and the performance of single cells was evaluated under two different humidification conditions, R.H. 100% and 50%. The modified GDL, which contained a hydrophilic MPL in the middle of the GDL and a hydrophobic MPL on the surface, performed better than the conventional GDL, which contained only a single hydrophobic MPL, regardless of humidity, where the performance of the single cell was significantly improved under the low humidification condition. The hydrophilic MPL, which was in the middle of the modified GDL, was shown to act as an internal humidifier due to its water absorption ability as assessed by measuring the vapor and water permeability of this layer.
KW - Gas diffusion layer (GDL)
KW - Hydrophobic/hydrophilic double layer
KW - Micro porous layer (MPL)
KW - Polymer electrolyte membrane fuel cell (PEMFC)
UR - http://www.scopus.com/inward/record.url?scp=79958080404&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79958080404&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2011.04.038
DO - 10.1016/j.ijhydene.2011.04.038
M3 - Article
AN - SCOPUS:79958080404
SN - 0360-3199
VL - 36
SP - 8422
EP - 8428
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 14
ER -
