Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 21, Issue 12, Pages 4117-4124Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm02567d
Keywords
-
Funding
- Department of Science and Technology, New Delhi (Govt. of India) [SR/S1/PC/06/2008]
- CSIR, Govt. of India
Ask authors/readers for more resources
Protic ionic-liquid (IL) based polymer electrolyte membranes (PEMs) have been reported for high-temperature fuel cell applications under anhydrous condition. Herein, we report aprotic IL (1-ethyl-3-methylimidazolium ethyl sulfate (EMIES)) and sulfonated poly(ether ether ketone) (SPEEK) based PEMs for fuel cell application under anhydrous condition. Liberated protons from -SO3H groups (SPEEK) due to ionic interaction with EMIES, were responsible for high conductivity under anhydrous conditions. High ionic interaction between the EMIES and SPEEK led to homogeneous mixing. Prepared SPEEK-IL-70 PEM exhibited 0.57 mS cm(-1) conductivity (conductivity of EMIES: 3.445 mS cm(-1) at room temperature), which was dramatically increased to 18.94 mS cm(-1) at 150 degrees C under anhydrous condition. This enhancement in conductivity was explained due to the well-connected proton conducting channels formed in the polymer matrix because of good miscibility and interaction with EMIES. High stability and good conductivity of SPEEK-IL composite membranes demonstrated their potential application for high-temperature applications.
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