Surface chemistry of inorganic materials for composite membranes in PEM fuel cells operating at elevated temperature and reduced relative humidity

Serguei Lvov, Mark Valentinovich Fedkin, Elena Chalkova, Sridhar Komarneni, David J. Wesolowski

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

Abstract

A number of proton conductive inorganics and their surface properties such as zeta potential, surface charge density, stoichiometry of surface complexes, etc., which reflect interfacial behavior of the inorganic particles, have been studied to better understand the performance of the solid oxide materials in composite membranes for proton exchange in fuel cells. The parameters and structure of the electrical double layer (EDL) at inorganic/water interface will be discussed in relation to the ionic conductivity and water retention properties of inorganic/polymer composite membranes. We conclude that the experimentally measured zeta potential and surface charge density along with EDL modeling of the inorganic/water interface can elucidate the experimentally found advantages of the composite membranes in proton exchange membrane (PEM) fuel cells operating at elevated temperature and reduced relative humidity.

Original languageEnglish (US)
Title of host publicationAbstracts of Papers - 232nd American Chemical Society Meeting and Exposition
StatePublished - Dec 1 2006
Event232nd American Chemical Society Meeting and Exposition - San Francisco, CA, United States
Duration: Sep 10 2006Sep 14 2006

Publication series

NameACS National Meeting Book of Abstracts
Volume232
ISSN (Print)0065-7727

Other

Other232nd American Chemical Society Meeting and Exposition
CountryUnited States
CitySan Francisco, CA
Period9/10/069/14/06

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Fingerprint Dive into the research topics of 'Surface chemistry of inorganic materials for composite membranes in PEM fuel cells operating at elevated temperature and reduced relative humidity'. Together they form a unique fingerprint.

  • Cite this

    Lvov, S., Fedkin, M. V., Chalkova, E., Komarneni, S., & Wesolowski, D. J. (2006). Surface chemistry of inorganic materials for composite membranes in PEM fuel cells operating at elevated temperature and reduced relative humidity. In Abstracts of Papers - 232nd American Chemical Society Meeting and Exposition (ACS National Meeting Book of Abstracts; Vol. 232).