Nafion-Faujasite zeolite composite membranes were prepared by solution casting at different zeolite content, ranging from 2 to 40 wt.% nominal content. A dynamic vapor sorption (DVS) apparatus was used to investigate the thermodynamics of water sorption of the composite electrolytes. The water diffusivity was estimated from the kinetics of the water adsorption process. Fitting the sorption isotherms by a multi-mode model allowed to discriminate the water states in the composites and analyze the effect of the additives on the interaction of water with the ionomer matrix. The addition of zeolites causes an increase of the mobile water population within the membrane.

Mecheri, B., Felice, V., D'Epifanio, A., Tavares, A., Licoccia, S. (2011). An Investigation of Inorganic/Ionomer Composite Electrolyte Membranes by Dynamic Vapor Sorption. ECS TRANSACTIONS, 35(32), 99-106 [10.1149/1.3655692].

An Investigation of Inorganic/Ionomer Composite Electrolyte Membranes by Dynamic Vapor Sorption

MECHERI, BARBARA;D'EPIFANIO, ALESSANDRA;LICOCCIA, SILVIA
2011

Abstract

Nafion-Faujasite zeolite composite membranes were prepared by solution casting at different zeolite content, ranging from 2 to 40 wt.% nominal content. A dynamic vapor sorption (DVS) apparatus was used to investigate the thermodynamics of water sorption of the composite electrolytes. The water diffusivity was estimated from the kinetics of the water adsorption process. Fitting the sorption isotherms by a multi-mode model allowed to discriminate the water states in the composites and analyze the effect of the additives on the interaction of water with the ionomer matrix. The addition of zeolites causes an increase of the mobile water population within the membrane.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore CHIM/07 - Fondamenti Chimici delle Tecnologie
English
Senza Impact Factor ISI
FUEL CELL, NAFION, COMPOSITE, ZEOLITE
Mecheri, B., Felice, V., D'Epifanio, A., Tavares, A., Licoccia, S. (2011). An Investigation of Inorganic/Ionomer Composite Electrolyte Membranes by Dynamic Vapor Sorption. ECS TRANSACTIONS, 35(32), 99-106 [10.1149/1.3655692].
Mecheri, B; Felice, V; D'Epifanio, A; Tavares, A; Licoccia, S
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/57667
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