Journal
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
Volume -, Issue 17, Pages 2369-2376Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejic.201601559
Keywords
Polymers; Zeolites; Ionic liquids; Fuel cells
Categories
Funding
- FAPESP [2013/07296-2]
- CAPES
- CNPq
Ask authors/readers for more resources
Sulfonated poly(ether ether ketone) (SPEEK)/zeolite/ionic-liquid composite membranes were prepared with different amounts of 1-butyl-3-methylimidazolium trifluoromethanesulfonate ([C4MI]CF3SO3) or 1-decyl-3-methylimidazolium trifluoromethanesulfonate ([C10MI]CF3SO3) ionic liquids (ILs). The structure of the composite membranes was investigated by FTIR-ATR spectroscopy, X-ray diffraction, atomic force microscopy, and by thermogravimetric analyses. The introduction of the IL, encapsulated in zeolite, into the SPEEK polymer leads to improvement of the water uptake, thermal stability, and proton conductivity of the composite membranes, compared with pristine SPEEK. The proton conductivity of the membranes with 1.5% and 2.0% [C4MI]CF3SO3 IL showed values of 3.34 mS cm(-1) and 5.98 mS cm(-1), respectively, under anhydrous conditions at 80 degrees C. The conductivity obtained for these membranes is about 100 times higher than for pristine SPEEK (0.038 mS cm(-1)).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available