Jump to main content
Jump to site search

Issue 7, 2019
Previous Article Next Article

Evaluation of fluorine and sulfonic acid co-functionalized graphene oxide membranes under hydrogen proton exchange membrane fuel cell conditions

Author affiliations

Abstract

The use of graphene oxide (GO) based membranes consisting of self-assembled flakes with a lamellar structure represents an intriguing strategy to spatially separate reactants while facilitating proton transport in proton exchange membranes (PEMs). Here we chemically modify GO to evaluate the effect of fluorine and sulfonic acid groups on the performance of H2/O2 based PEM fuel cells. Mild fluorination is achieved in the presence of hydrogen fluoride during oxidation and subsequent sulfonation resulted in fluorine and SO3 co-functionalized GO. Membrane electrode assembly performance under low temperature and moderate humidity conditions suggested that both functional groups contribute to reduced H2 crossover compared to appropriate reference membranes. Moreover, fluorine groups promoted an enhanced hydrolytic stability while contributing to the prevention of structural degradation after constant potential experiments, whereas sulfonic acid exerted a stabilizing effect by preserving proton conductivity.

Graphical abstract: Evaluation of fluorine and sulfonic acid co-functionalized graphene oxide membranes under hydrogen proton exchange membrane fuel cell conditions

Back to tab navigation

Supplementary files

Article information


Submitted
28 Feb 2019
Accepted
08 May 2019
First published
08 May 2019

This article is Open Access

Sustainable Energy Fuels, 2019,3, 1790-1798
Article type
Paper

Evaluation of fluorine and sulfonic acid co-functionalized graphene oxide membranes under hydrogen proton exchange membrane fuel cell conditions

R. Sandström, A. Annamalai, N. Boulanger, J. Ekspong, A. Talyzin, I. Mühlbacher and T. Wågberg, Sustainable Energy Fuels, 2019, 3, 1790
DOI: 10.1039/C9SE00126C

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

Reproduced material should be attributed as follows:

  • For reproduction of material from NJC:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
  • For reproduction of material from PCCP:
    [Original citation] - Published by the PCCP Owner Societies.
  • For reproduction of material from PPS:
    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
  • For reproduction of material from all other RSC journals:
    [Original citation] - Published by The Royal Society of Chemistry.

Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.


Social activity

Search articles by author

Spotlight

Advertisements