Investigation of solvent effects on the dispersion of carbon agglomerates and nafion ionomer particles in catalyst inks using ultra small angle X-Ray scattering method

Fan Yang, Le Xin, Aytekin Uzunoglu, Lia Stanciu, Jan Ilavsky, Steven Son, Jian Xie

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

13 Citations (Scopus)

Abstract

Ink formulation is important to improve the performance of membrane electrode assembly (MEA) in polymer electrode fuel cells (PEMFCs). In this study, ultra-small angle x-ray scattering method was applied to study the dispersion of carbon black in different solvent to get a better understanding of the influence of the solvent on the dispersion of carbon black. The dimension of carbon black aggregates before and after adding Nafion ionomer was compared in different solvent. Dielectric constant and viscosity were found to be the key factors that affect the dispersion of carbon black in solvents. Carbon black particles in a solvent with higher dielectric constant will tend to form larger aggregates after adding Nafion ionomer. The higher viscosity of a solvent will prevent the aggregation of carbon black particles after the addition of Nafion ionomer.

Original languageEnglish
Title of host publicationPolymer Electrolyte Fuel Cells 16, PEFC 16
EditorsD. J. Jones, H. Uchida, H. A. Gasteiger, K. Swider-Lyons, F. N. Buchi, P. N. Pintauro, B. S. Pivovar, K. E. Ayers, K. A. Perry, P. Shirvanian, A. Z. Weber, V. K. Ramani, P. Strasser, R. A. Mantz, K. Shinohara, S. Mitsushima, C. Coutanceau, J. M. Fenton, T. J. Schmidt, T. F. Fuller, S. R. Narayanan, Y. T. Kim, L. Zhuang, S. G. Sun
PublisherElectrochemical Society Inc.
Pages361-371
Number of pages11
Edition14
ISBN (Electronic)9781607687313, 9781607687672, 9781607687689, 9781607687696, 9781607687702, 9781607687719, 9781607687726, 9781607687733, 9781607687740, 9781607687757, 9781607687771, 9781607687788, 9781607687795, 9781607687801, 9781607687818, 9781607687825, 9781607687832, 9781607687849, 9781607687856, 9781607687863, 9781607687887, 9781607687894, 9781607687900, 9781607687917, 9781607687924, 9781607687931, 9781607687948, 9781607687955, 9781607687962, 9781607687979, 9781607687986, 9781607687993, 9781607688006, 9781607688013, 9781607688020, 9781607688037
DOIs
Publication statusPublished - 2016
Externally publishedYes
EventSymposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting - Honolulu, United States
Duration: 2 Oct 20167 Oct 2016

Publication series

NameECS Transactions
Number14
Volume75
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

ConferenceSymposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting
Country/TerritoryUnited States
CityHonolulu
Period2/10/167/10/16

Bibliographical note

Publisher Copyright:
© 2016 The Electrochemical Society.

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