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.

Licoccia, S., D'Epifanio, A., DI VONA, M.l., Ahhmed, Z., Belitto, S., Marani, D., et al. (2006). Functionalized ORMOSIL-based hybrid membranes for polymer electrolyte membrane fuel cells. MATERIALS RESEARCH SOCIETY SYMPOSIA PROCEEDINGS, 885, 61-66 [10.1557/PROC-0885-A02-04].

Functionalized ORMOSIL-based hybrid membranes for polymer electrolyte membrane fuel cells

LICOCCIA, SILVIA;D'EPIFANIO, ALESSANDRA;DI VONA, MARIA LUISA;MARANI, DEBORA;D'OTTAVI, CADIA;MORONI, GABRIELLA;TROMBETTA, LUCIA MARIA;TRAVERSA, ENRICO
2006-01-01

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.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore CHIM/07 - Fondamenti Chimici delle Tecnologie
English
Licoccia, S., D'Epifanio, A., DI VONA, M.l., Ahhmed, Z., Belitto, S., Marani, D., et al. (2006). Functionalized ORMOSIL-based hybrid membranes for polymer electrolyte membrane fuel cells. MATERIALS RESEARCH SOCIETY SYMPOSIA PROCEEDINGS, 885, 61-66 [10.1557/PROC-0885-A02-04].
Licoccia, S; D'Epifanio, A; DI VONA, Ml; Ahhmed, Z; Belitto, S; Marani, D; D'Ottavi, C; Moroni, G; Trombetta, Lm; Traversa, E
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/118964
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