Please use this identifier to cite or link to this item:
|Title:||Acid-base hybrid polymer electrolyte membranes based on SPEEK||Authors:||Xue, Y.
|Keywords:||Acid-base polymer blend
Direct methanol fuel cells
Poly(ether ether ketone)
|Issue Date:||15-Mar-2010||Citation:||Xue, Y., Fu, R., Wu, C., Lee, J.Y., Xu, T. (2010-03-15). Acid-base hybrid polymer electrolyte membranes based on SPEEK. Journal of Membrane Science 350 (1-2) : 148-153. ScholarBank@NUS Repository. https://doi.org/10.1016/j.memsci.2009.12.022||Abstract:||A new series of proton-conducting membranes has been developed that consists of sulfonated poly(ether ether ketone) (SPEEK) and 3-aminopropyltriethoxy silane (APTES) prepared over a wide range of compositions. The APTES was added to SPEEK to address its deficiencies, such as high dimensional swelling and water uptake in SPEEK membranes at elevated temperatures. A dispersed phase of amino silica was formed through hydrolysis and condensation of APTES. The silica contributes to the suppression of permeation of reactants across the membrane and the electrostatic interaction between the basic amine groups of APTES and the acidic sulfonic groups of SPEEK suppresses loss of silica from the membrane. The hybrid SPEEK and APTES membranes are stable up to about 80 °C and demonstrate a higher ratio of proton conductivity to methanol permeability than that of Nafion® 117. © 2009 Elsevier B.V. All rights reserved.||Source Title:||Journal of Membrane Science||URI:||http://scholarbank.nus.edu.sg/handle/10635/88497||ISSN:||03767388||DOI:||10.1016/j.memsci.2009.12.022|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jan 22, 2020
WEB OF SCIENCETM
checked on Jan 14, 2020
checked on Dec 29, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.