Dual-layer catalyst layers for increased proton exchange membrane fuel cell performance
نویسندگان
چکیده
The use of a dual-layer cathode catalyst layer improves the performance proton exchange membrane fuel cells. To generate single and layers between gas diffusion media electrolyte, two commercial carbon-supported platinum catalysts with either high microporosity carbon (Ketjen Black EC-300J) or low porosity (XC-72 Vulcan carbon) are utilized. We discovered that boost maximum power cells regardless directionality, surface area at electrolyte interface. At 25% relative humidity, condition generally inhibits cell performance, 20% is realized when using CLs. electrochemical impedance spectroscopy results indicate cathodes aid in water management due to lower kinetic activity losses Pt improved hydration electrolyte.
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ژورنال
عنوان ژورنال: Journal of Power Sources
سال: 2021
ISSN: ['1873-2755', '0378-7753']
DOI: https://doi.org/10.1016/j.jpowsour.2021.230574