Articles with "catalyst layer" as a keyword



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Controlling the ionic polymer/gas interface property of a PEM fuel cell catalyst layer during membrane electrode assembly fabrication

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Published in 2020 at "Journal of Applied Electrochemistry"

DOI: 10.1007/s10800-020-01453-w

Abstract: During high current density operation, water production in the polymer electrolyte membrane fuel cell (PEMFC) cathode catalyst layer can negatively affect performance by lowering mass transport of oxygen into the cathode. In this paper, a… read more here.

Keywords: gas interface; layer; catalyst layer;
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Tuning hydrophobic-hydrophilic balance of cathode catalyst layer to improve cell performance of proton exchange membrane fuel cell (PEMFC) by mixing polytetrafluoroethylene (PTFE)

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Published in 2018 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2018.04.213

Abstract: Abstract The wettability, or hydrophobic-hydrophilic balance, of cathode catalyst layer influences the performance of the proton exchange membrane fuel cell. In this paper, cathode catalyst layer with different polytetrafluoroethylene contents are prepared, and the effect… read more here.

Keywords: cathode catalyst; cathode; polytetrafluoroethylene; catalyst layer ... See more keywords
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Structure and dynamics of microbial fuel cell catalyst layer

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Published in 2019 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2019.01.111

Abstract: Abstract Molecular dynamics method is used to investigate the mass transfer rules of reactants H3O+ and O2 in the cathode catalyst layer in the presence of five kinds of cations (Na+, K+, NH4+, Mg2+, Ca2+)… read more here.

Keywords: catalyst; catalyst layer; nafion; microbial fuel ... See more keywords
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Catalyst layer design and arrangement to improve the performance of a microchannel methanol steam reformer

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Published in 2019 at "Energy Conversion and Management"

DOI: 10.1016/j.enconman.2018.10.094

Abstract: Abstract A numerical model is developed to predict the performance of a microchannel methanol steam reformer with different catalyst layer configurations to produce hydrogen-rich syngas for a high temperature polymer electrolyte membrane fuel cell (HT-PEMFC).… read more here.

Keywords: catalyst; methanol; microchannel; catalyst layer ... See more keywords
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Cathode catalyst layer with nanofiber microstructure for direct methanol fuel cells

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Published in 2020 at "Energy Conversion and Management"

DOI: 10.1016/j.enconman.2020.113013

Abstract: Abstract Due to eco-friendly production and running processes, direct methanol fuel cell has been considered as a clean and green energy generation technology. However, the dissatisfactory discharge performance of fuel cell, mainly caused by low-efficient… read more here.

Keywords: methanol fuel; fuel; direct methanol; catalyst layer ... See more keywords
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Chemical degradation of PFSA ionomer binder in PEMFC's catalyst layer

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Published in 2018 at "International Journal of Hydrogen Energy"

DOI: 10.1016/j.ijhydene.2018.06.049

Abstract: Abstract The degradation of perfluorinated sulfonic acid ionomer (PFSA) binder in catalyst layer of Proton Exchange Membrane Fuel Cell (PEMFC) was investigated on Membrane-Electrode-Assemblies (MEA) operated up to 10400 h in base load conditions for telecom… read more here.

Keywords: binder; degradation; pemfc; catalyst layer ... See more keywords
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Insights into the role of wettability in cathode catalyst layer of proton exchange membrane fuel cell; pore scale immiscible flow and transport processes

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Published in 2017 at "Journal of Power Sources"

DOI: 10.1016/j.jpowsour.2017.03.012

Abstract: The production of liquid water in cathode catalyst layer, CCL, is a significant barrier to increase the efficiency of proton exchange membrane fuel cell. Here we present, for the first time, a direct three-dimensional pore-scale… read more here.

Keywords: proton exchange; water; cathode catalyst; catalyst layer ... See more keywords
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In-plane and through-plane non-uniform carbon corrosion of polymer electrolyte fuel cell cathode catalyst layer during extended potential cycles

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Published in 2017 at "Journal of Power Sources"

DOI: 10.1016/j.jpowsour.2017.07.017

Abstract: Abstract The impact of electrochemical carbon corrosion via potential cycling durability tests mimicking start-stop operation events on the microstructure of the cathode catalyst layer in polymer electrolyte fuel cells (PEFCs) is investigated using focused ion… read more here.

Keywords: layer; cathode; catalyst layer; carbon corrosion ... See more keywords
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Effects of Pt and ionomer ratios on the structure of catalyst layer: A theoretical model for polymer electrolyte fuel cells

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Published in 2018 at "Journal of Power Sources"

DOI: 10.1016/j.jpowsour.2017.11.026

Abstract: Abstract The 3D structure of the catalyst layer (CL) in the polymer electrolyte fuel cell (PEFC) is modeled with a Pt/carbon (Pt/C) ratio of 0.4–2.3 and ionomer/carbon (i/C) ratio of 0.5–1.5, and the structural properties… read more here.

Keywords: electrolyte fuel; catalyst layer; structure catalyst; polymer electrolyte ... See more keywords
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Convolutional neural networks for high throughput screening of catalyst layer inks for polymer electrolyte fuel cells

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Published in 2021 at "RSC Advances"

DOI: 10.1039/d1ra05324h

Abstract: Deep learning enables the robust and accurate classification of the TEM images of catalyst layer inks for the polymer electrolyte fuel cells. read more here.

Keywords: fuel cells; electrolyte fuel; catalyst layer; inks polymer ... See more keywords
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Elucidating the Role of Ionomer in the Performance of Platinum Group Metal-free Catalyst Layer via in situ Electrochemical Diagnostics

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Published in 2020 at "Journal of The Electrochemical Society"

DOI: 10.1149/1945-7111/ab7aa1

Abstract: The ionomer content in platinum group metal (PGM)-free polymer electrolyte fuel cell (PEFC) cathode catalyst layer (CCL) plays an important role in the electrode gas transport properties, proton conductivity, and hence, membrane electrode assembly (MEA)… read more here.

Keywords: ionomer; catalyst layer; platinum group; performance ... See more keywords