Characterization of Thermal and Electronic Conductivities of Catalyst Layers of Polymer Electrolyte Membrane Fuel Cells
Sign Up to like & getrecommendations! Published in 2019 at "Fuel Cells"
DOI: 10.1002/fuce.201800173
Abstract: This work proposes new and accurate systematic methodologies for ex situ measurements of through-plane thermal and in-plane electronic conductivities of catalyst layers (CLs) of polymer electrolyte membrane fuel cells (PEMFC). The developed methods are based… read more here.
Keywords: fuel cells; catalyst layers; fuel; electronic conductivities ... See more keywords
Ultra-low Pt loading catalyst layers prepared by pulse electrochemical deposition for PEM fuel cells
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Applied Electrochemistry"
DOI: 10.1007/s10800-017-1071-4
Abstract: We report the production of efficient, ultra-low Pt loading catalyst layers on fuel cell electrodes via pulse potential deposition (PPD) from a H2Pt(OH)6 plating solution. We show that by optimizing the off time in the… read more here.
Keywords: ultra low; catalyst layers; low loading; deposition ... See more keywords
Physical Modeling of the Proton Density in Nanopores of PEM Fuel Cell Catalyst Layers
Sign Up to like & getrecommendations! Published in 2017 at "Electrochimica Acta"
DOI: 10.1016/j.electacta.2017.05.052
Abstract: Abstract In polymer electrolyte fuel cells, a foremost goal is to design catalyst layers with high performance at markedly reduced platinum loading. As a contribution towards this objective, we explore a simplified pore geometry to… read more here.
Keywords: density; catalyst layers; fuel; proton density ... See more keywords
Progress report on the catalyst layers for hydrocarbon-fueled SOFCs
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Hydrogen Energy"
DOI: 10.1016/j.ijhydene.2021.09.198
Abstract: Abstract Solid oxide fuel cell (SOFC) is an energy conversion device that can directly convert the chemical energy of carbonaceous fuels into electricity. Solving the problem of carbon deposition in the conventional nickel-based anode is… read more here.
Keywords: progress; hydrocarbon fueled; catalyst layers; catalyst ... See more keywords
Modelling analysis of low platinum polymer fuel cell degradation under voltage cycling: Gradient catalyst layers with improved durability
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Power Sources"
DOI: 10.1016/j.jpowsour.2018.09.092
Abstract: Abstract Improving the durability of polymer electrolyte membrane fuel cells with low platinum loading is a crucial step in the development of next generation electric vehicles. In this work a simplified model of nanoparticle growth… read more here.
Keywords: degradation; catalyst layers; durability; catalyst ... See more keywords
Controlling cracking formation in fuel cell catalyst layers
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DOI: 10.1016/j.jpowsour.2019.02.058
Abstract: Abstract Since cracks in catalyst layers of a fuel cell affect performance and durability, it is important to obtain the factors that control crack formation. Cracking characteristics are likely to differ due to the formation… read more here.
Keywords: formation; catalyst; catalyst inks; fuel cell ... See more keywords
Probing the Dynamics of Platinum Surface Oxides in Fuel Cell Catalyst Layers Using in Situ X-ray Diffraction
Sign Up to like & getrecommendations! Published in 2019 at "ACS Applied Energy Materials"
DOI: 10.1021/acsaem.9b00982
Abstract: The processes leading to degradation of Pt nanoparticles inside commercial hydrogen fuel cell catalyst layers are studied in situ, using time-resolved high-energy powder X-ray diffraction. Advances in electrochemical cell design significantly increase the quality of… read more here.
Keywords: fuel cell; diffraction; catalyst layers; cell ... See more keywords
Quantification on Degradation Mechanisms of Polymer Electrolyte Membrane Fuel Cell Catalyst Layers during an Accelerated Stress Test
Sign Up to like & getrecommendations! Published in 2018 at "ACS Catalysis"
DOI: 10.1021/acscatal.8b00002
Abstract: The long-term durability of the catalyst layers of a low-working temperature fuel cell such as a polymer electrolyte membrane fuel cell (PEMFC) is of significant scientific interest because of their operation criteria and high initial… read more here.
Keywords: fuel cell; loss; catalyst layers; catalyst ... See more keywords