Jump to main content
Jump to site search

Issue 90, 2015
Previous Article Next Article

Novel nanocomposite membranes based on blended sulfonated poly(ether ether ketone)/poly(vinyl alcohol) containing sulfonated graphene oxide/Fe3O4 nanosheets for DMFC applications

Author affiliations

Abstract

In this study, sulfonated graphene oxide (SGO)/Fe3O4 nanosheets were synthesized by hydrothermal method and incorporated into blend sulfonated poly(ether ether ketone) (SPEEK)/poly(vinyl alcohol) (PVA) matrix with different weight percent of (SGO)/Fe3O4 nanosheets. The performances of prepared membranes were investigated by water uptake, membrane swelling, mechanical and thermal stability, proton conductivity, methanol permeability and DMFC test. It was found that the water uptake and tensile strength of SPEEK membrane increased and proton conductivity and power density decreased by blending with PVA. Incorporation of SGO/Fe3O4 nanosheets into SPEEK/PVA matrix enhanced mechanical stability, proton conductivity and methanol barrier properties of membrane. The SPEEK/PVA/SGO/Fe3O4 nanocomposite membrane with optimal nanosheets content (5 wt%) exhibits low methanol permeability (8.83 × 10−7 cm2 s−1), high tensile strength (51.2 MPa), high proton conductivity (0.084 S cm−1 at 25 °C) and high power density (122.7 mW cm−2 at 80 °C) and suggests its potential application in DMFCs.

Graphical abstract: Novel nanocomposite membranes based on blended sulfonated poly(ether ether ketone)/poly(vinyl alcohol) containing sulfonated graphene oxide/Fe3O4 nanosheets for DMFC applications

Back to tab navigation

Publication details

The article was received on 03 Jul 2015, accepted on 21 Aug 2015 and first published on 21 Aug 2015


Article type: Paper
DOI: 10.1039/C5RA12941A
Author version
available:
Download author version (PDF)
Citation: RSC Adv., 2015,5, 74054-74064
  •   Request permissions

    Novel nanocomposite membranes based on blended sulfonated poly(ether ether ketone)/poly(vinyl alcohol) containing sulfonated graphene oxide/Fe3O4 nanosheets for DMFC applications

    H. Beydaghi, M. Javanbakht, A. Bagheri, P. Salarizadeh, H. G. Zahmatkesh, S. Kashefi and E. Kowsari, RSC Adv., 2015, 5, 74054
    DOI: 10.1039/C5RA12941A

Search articles by author

Spotlight

Advertisements