Effect of water distribution in gas diffusion layer on proton exchange membrane fuel cell performance
| Autor: | Yoshio Utaka, Like Yue, Takuto Araki, Shixue Wang, Yulin Wang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Imagination
Materials science Chemical substance Renewable Energy Sustainability and the Environment media_common.quotation_subject Energy Engineering and Power Technology Proton exchange membrane fuel cell 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Cathode 0104 chemical sciences law.invention Gas diffusion layer Fuel Technology Magazine Chemical engineering law 0210 nano-technology Science technology and society Water content media_common |
| Zdroj: | International Journal of Hydrogen Energy. 46:2969-2977 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2020.06.184 |
| Popis: | Water management of proton exchange membrane fuel cells remains a prominent issue in research concerning fuel cells. In this study, the gas diffusion layer (GDL) of a fuel cell is partially treated with a hydrophobic agent, and the effect of GDL hydrophobicity on the water distribution in the fuel cell is examined. First, the effect of the position of the cathode GDL hydrophobic area relative to the channel on the fuel cell performance is investigated. Then, the water distribution in the fuel cell cathode GDL is observed using X-ray imaging. The experimental results indicate that when the hybrid GDL's hydrophobic area lies on the channel, water tends to accumulate under the rib, and the water content in the channel is low; this improves the fuel cell performance. When the hydrophobic area is under the rib, the water distribution is more uniform, but the performance deteriorates. |
| Databáze: | OpenAIRE |
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