Understanding binary interactions and aging effects in catalyst layer inks for controlled manufacturing

M. B. Dixit, K. B. Hatzell

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The effect of perfluorosulfonated ionomer loading in carbon-based colloidal inks is investigated under static and dynamic operating conditions. The results show that both the solvent-type and polymer loading play a role in ink stability, aggregation, and aging. Dynamic light scattering and shear and creep rheological experiments show that the addition of a polymer to carbon inks can act as a stabilizing agent which increases steric repulsion and decreases the inks overall viscosity. As the polymer loading is increased above 30wt% a decrease of approximately 30 MPa-1 in compliance is observed. A decrease in compliance at high polymer loading suggests weak interactions between the underlying carbon materials and indicates that a critical polymer loadings may exist for different shear processing routes.

Original languageEnglish (US)
Title of host publicationECS Transactions
EditorsD. J. Jones, F. Buechi, K. E. Swider-Lyons, P. N. Pintauro, H. Uchida, T. J. Schmidt, B. S. Pivovar, H. A. Gasteiger, A. Z. Weber, P. A. Shirvanian, J. M. Fenton, T. F. Fuller, K. Shinohara, K. A. Perry, P. Strasser, C. Coutanceau, S. Mitsushima, R. A. Mantz, S. Narayan, V. Ramani, K. E. Ayers, Y.-T. Kim, H. Xu
PublisherElectrochemical Society Inc.
Pages301-307
Number of pages7
Edition8
ISBN (Print)9781623324773
DOIs
StatePublished - 2017
Externally publishedYes
EventSymposium on Polymer Electrolyte Fuel Cells 17, PEFC 2017 - 232nd ECS Meeting - National Harbor, United States
Duration: Oct 1 2017Oct 5 2017

Publication series

NameECS Transactions
Number8
Volume80
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

ConferenceSymposium on Polymer Electrolyte Fuel Cells 17, PEFC 2017 - 232nd ECS Meeting
Country/TerritoryUnited States
CityNational Harbor
Period10/1/1710/5/17

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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