期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 37, 期 7, 页码 5979-5991出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2011.12.141
关键词
SPEEK; TSP POSS; Proton conductivity; Water uptake
资金
- Naval Research Board (NRB) Ministry of Defence, India
- DAAD
- IIT Delhi
The paper describes the preparation of hybrid membranes using a trisilanol phenyl polyhedral oligosilsesquioxane (TSP POSS) as filler, ethylene glycol (EG) as cross-linker and sulfonated poly(ether ether ketone) [SPEEK] (DS similar to 65%) as polymer matrix. The performance of membranes has been evaluated in terms of thermal stability [by thermogravimetric analysis (TGA), differential scanning calorimetery (DSC)], water uptake, proton conductivity and X-ray diffraction (XRD) analysis. Morphology of the membranes has been investigated using scanning electron microscopy with energy dispersive X-ray (SEM-EDX) and atomic force microscopy (AFM). The addition of EG has increased the proton conductivity and dimensional stability of SPEEK matrix whereas incorporation of a small amount of TSP POSS to SPEEK/EG membranes has resulted in the decrease in water uptake and proton conductivity of the hybrid membranes. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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