Functionalized ORMOSIL-Based Hybrid Membranes for Polymer Electrolyte Membrane Fuel Cells

Silvia Licoccia, Alessandra D’Epifanio, M.L. Di Vona, Zakarya Ahmed, Serafina Bellitto, Debora Marani, Cadia D’Ottavi, Emiliano Moroni, Marcella Trombetta, Enrico Traversa

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

Sulfonated poly ether ether ketone (SPEEK) with a high degree of sulfonation (DS = 0.9) was mixed with a modified silane bearing a sulfonic acid function (sulfonated diphenylsilanediole, SDPDO). Homogeneous composite membranes with several SPEEK:SDPDO ratios, were obtained. The addition of the ormosil significantly improved the water uptake and solubility properties of pure SPEEK. The structural and electrochemical characteristics of the composite membranes were investigated by means of thermogravimetric analysis (TG), field emission scanning electron microscopy (FE-SEM), and electrochemical impedance spectroscopy (EIS). The conductivity values of the composites SPEEK/SDPDO demonstrated that they possess good proton transport characteristics, thus being suitable for application in Polymer Electrolyte Fuel Cells operating at intermediate temperature.
Original languageEnglish
Article number0885-A02-04
JournalMaterials Research Society Symposium Proceedings
Volume885E
ISSN0272-9172
Publication statusPublished - 2006
Externally publishedYes
Event2005 Material Research Society Fall Meeting & Exhibit - Boston, MA, United States
Duration: 27 Nov 20052 Dec 2005

Conference

Conference2005 Material Research Society Fall Meeting & Exhibit
CountryUnited States
CityBoston, MA
Period27/11/200502/12/2005

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