000195599 001__ 195599
000195599 005__ 20181203023411.0
000195599 0247_ $$2doi$$a10.1016/j.ijhydene.2013.08.111
000195599 022__ $$a0360-3199
000195599 02470 $$2ISI$$a000328010800024
000195599 037__ $$aARTICLE
000195599 245__ $$aInvestigation of the effects of AMPS-modified nanoclay on fuel cell performance of sulfonated aromatic proton exchange membranes
000195599 260__ $$aOxford$$bPergamon-Elsevier Science Ltd$$c2013
000195599 269__ $$a2013
000195599 300__ $$a9
000195599 336__ $$aJournal Articles
000195599 520__ $$aHere we describe preparation and characterization of a series of nanocomposite polyelectrolytes based on partially sulfonated poly (ether ether ketone) (SPEEK) and organically modified montmorillonite (MMT). Optimum degree of sulfonation for SPEEK is selected based on its transport properties. MMT is modified via ion exchange reaction using a 2-acrylamido-2-methylpropanesulfonic acid (AMPS) as a functional modifier. AMPS-MMT at different loadings is introduced into the SPEEK matrices via the solution intercalation technique. Also, the nanocomposite membranes are fabricated using SPEEK and commercially available nanoclays like Cloisite Na (Na-MMT) and Cloisite 15A. Transport properties, proton conductivity and methanol permeability of the fabricated composite membranes are evaluated. Presence of AMPS-MMT significantly decreases the activation energy needed for proton conductivity. A membrane based on SPEEK/AMPS-MMT-3 wt% is selected as an optimum formulation which exhibits a high selectivity and power density at the elevated methanol concentrations. Moreover, it is found that the optimum nanocomposite membrane not only provides higher power output compared to the neat SPEEK and Nafion 117 membranes, but also exhibits a higher open circuit voltage (OCV) in comparison with pristine SPEEK and commercial Nafion 117 membranes. Owing to the desirable transport and electrochemical properties SPEEK/AMPS-MMT nanocomposite can be considered as an alternative membrane for direct methanol fuel cell applications. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
000195599 6531_ $$aSulfonated poly (ether ether ketone)
000195599 6531_ $$aPolymer-clay nanocomposites
000195599 6531_ $$aProton exchange membranes
000195599 6531_ $$aDirect methanol fuel cells
000195599 6531_ $$aElectrochemical performance
000195599 6531_ $$aModerate temperature
000195599 700__ $$aSamberan, Mehrab Fallahi$$uIslamic Azad Univ, Ahar Branch, Dept Chem Engn, Ahar, Iran
000195599 700__ $$aHasani-Sadrabadi, Mohammad Mahdi$$uAmirkabir Univ Technol, Dept Polymer Engn & Color Technol, Tehran, Iran
000195599 700__ $$aGhaffarian, Seyyed Reza$$uAmirkabir Univ Technol, Dept Polymer Engn & Color Technol, Tehran, Iran
000195599 700__ $$aAlimadadi, Atefeh$$uAmirkabir Univ Technol, Dept Polymer Engn & Color Technol, Tehran, Iran
000195599 773__ $$j38$$k32$$q14076-14084$$tInternational Journal Of Hydrogen Energy
000195599 909C0 $$0252447$$pIMT$$xU10343
000195599 909CO $$ooai:infoscience.tind.io:195599$$pSTI$$particle
000195599 917Z8 $$x107144
000195599 917Z8 $$x148230
000195599 937__ $$aEPFL-ARTICLE-195599
000195599 973__ $$aOTHER$$rREVIEWED$$sPUBLISHED
000195599 980__ $$aARTICLE