TY - GEN
T1 - SUPERHYDROPHOBIC FLUORINATED CARBON FOR IMPROVED MICROPOROUS LAYERS IN POLYMER ELECTROLYTE FUEL CELLS
AU - Can, Enes M.
AU - Sasaki, Kazunari
AU - Lyth, Stephen M.
N1 - Funding Information:
The authors gratefully acknowledge the support of Ministry of National Education of Republic of Türkiye. This study was partially supported by NEDO (Contract No. JPNP20003).
Publisher Copyright:
© 2022 Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. All rights reserved.
PY - 2022
Y1 - 2022
N2 - Flooding is one of the major issues in polymer electrolyte fuel cells (PEFCs), especially under high current density operation. Therefore, gas diffusion layers (GDLs) coated with hydrophobic microporous layers (MPLs) are usually employed to decrease water saturation at the cathode side of the cell. In this study, fluorinated carbon powders are synthesized to create superhydrophobic microporous layers to facilitate water management and prevent flooding. Fluorinated carbons are synthesized by a solvothermal method and characterized by various technics techniques. Then, either fluorinated carbon or commercially available carbon black are formed into a slurry and screen printed onto a commercial GDL to form MPLs. These MPLs are then characterized by water contact angle measurements, air permeability tests, and oxygen transport resistance measurement. Furthermore, their performance in a PEFC is evaluated using I-V measurements in a PEFC under various conditions. The results indicate that fluorinated carbon based MPLs are superhydrophobic, leading to lower oxygen transport resistance and significantly higher fuel cell efficiency compared to conventional carbon black.
AB - Flooding is one of the major issues in polymer electrolyte fuel cells (PEFCs), especially under high current density operation. Therefore, gas diffusion layers (GDLs) coated with hydrophobic microporous layers (MPLs) are usually employed to decrease water saturation at the cathode side of the cell. In this study, fluorinated carbon powders are synthesized to create superhydrophobic microporous layers to facilitate water management and prevent flooding. Fluorinated carbons are synthesized by a solvothermal method and characterized by various technics techniques. Then, either fluorinated carbon or commercially available carbon black are formed into a slurry and screen printed onto a commercial GDL to form MPLs. These MPLs are then characterized by water contact angle measurements, air permeability tests, and oxygen transport resistance measurement. Furthermore, their performance in a PEFC is evaluated using I-V measurements in a PEFC under various conditions. The results indicate that fluorinated carbon based MPLs are superhydrophobic, leading to lower oxygen transport resistance and significantly higher fuel cell efficiency compared to conventional carbon black.
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M3 - Conference contribution
AN - SCOPUS:85147190476
T3 - Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2
SP - 769
EP - 771
BT - Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference
A2 - Dincer, Ibrahim
A2 - Colpan, Can Ozgur
A2 - Ezan, Mehmet Akif
PB - International Association for Hydrogen Energy, IAHE
T2 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2, WHEC 2022
Y2 - 26 June 2022 through 30 June 2022
ER -
