Výsledky vyhledávání - "Michael Ulsh"

Spectroscopic Investigation of Catalyst Inks and Thin Films Toward the Development of Ionomer Quality Control

Autor: Derek Jacobsen, Jason Porter, Michael Ulsh, Przemyslaw Rupnowski

Publikováno v: Applied Spectroscopy. 76:644-659

As the production of polymer electrolyte fuel cells expands, novel quality control methods must be invented or adapted in order to support expected rates of production. Ensuring the quality of deposited catalyst layers is an essential step in the fue

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7debd64ce3c893d26ebce6d8e176cb14
https://doi.org/10.1177/00037028221080177

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Solvent absorption rate of perfluorosulphonic acid membranes towards understanding direct coating processes

Autor: Scott A. Mauger, Janghoon Park, Michael Ulsh

Publikováno v: International Journal of Hydrogen Energy. 46:30239-30245

Here we present a method for measurement of the rate of solvent absorption by perfluorosulfonic acid (PFSA) membranes using a force tensiometer. The method presented here can be used as a tool to understand solvent absorption and should provide a rat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::33c25b758e61808f41812a94f8c9da2f
https://doi.org/10.1016/j.ijhydene.2021.06.168

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Process model for multilayer slide coating of polymer electrolyte membrane fuel cells

Autor: Michael Ulsh, Kristianto Tjiptowidjojo, Scott A. Mauger, Janghoon Park, Peter Randall Schunk

Publikováno v: Journal of Coatings Technology and Research. 19:73-81

Slide coating is a precision method suitable for depositing multiple liquid-film layers simultaneously. Originally developed in the photographic film industry, it has been deployed for manufacturing of other products that benefit from multilayer coat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bd23c45c7e95a0b5a791168618f726ff
https://doi.org/10.1007/s11998-021-00508-7

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Toward Optimizing Electrospun Nanofiber Fuel Cell Catalyst Layers: Polymer–Particle Interactions and Spinnability

Autor: Kenneth C. Neyerlin, Sadia Kabir, Sunilkumar Khandavalli, Samrat Sur, Michael Ulsh, Jonathan P. Rothstein, Scott A. Mauger, Nisha Sharma-Nene

Publikováno v: ACS Applied Polymer Materials. 3:2374-2384

We investigate the effect of the poly(acrylic acid) (PAA) carrier polymer concentration on the microstructure and rheological properties of catalyst inks for electrospun polymer–electrolyte membran...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d3f15195836d717798679aba32936599
https://doi.org/10.1021/acsapm.0c01354

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Visualization, understanding, and mitigation of process-induced-membrane irregularities in gas diffusion electrode-based polymer electrolyte membrane fuel cells

Autor: Michael Ulsh, Scott A. Mauger, Svitlana Pylypenko, Min Wang, Samantha Medina, Josias Ochoa-Lozano, Guido Bender

Publikováno v: International Journal of Hydrogen Energy. 46:14699-14712

Polymer electrolyte membrane fuel cells (PEMFC) show substantial promise for their application in electric vehicles. For large-scale manufacturing of PEMFCs, roll-to-roll coated gas-diffusion-electrodes (GDE) offer certain advantages over other produ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac7d3ea6ab120ce354be3f6d8b0701f6
https://doi.org/10.1016/j.ijhydene.2021.01.186

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Toward Optimizing Electrospun Nanofiber Fuel Cell Catalyst Layers: Microstructure and Pt Accessibility

Autor: Michael Ulsh, Svitlana Pylypenko, Sunilkumar Khandavalli, Samantha Medina, Scott A. Mauger, Sadia Kabir, Tim Van Cleve, Kenneth C. Neyerlin

Publikováno v: ACS Applied Energy Materials. 4:3341-3351

This work investigates how local ionomer/platinum (Pt) interactions and ionomer distribution in electrospun Pt/Vulcan nanofiber electrodes impact ionomer coverage, proton accessibility, and oxygen ...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9fc4bfe665ce8c3bfda5df2d2492286e
https://doi.org/10.1021/acsaem.0c03073

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