In this communication we present a detailed study of Nafion™ composite membranes containing different amounts of nanosized sulfated titania particles, synthesized through an optimized one-step synthesis procedure. Functional membrane properties, such as ionic exchange capacity and water uptake (WU) ability will be described and discussed, together with thermal analysis, atomic force microscopy and Raman spectroscopy data. Also electrochemical properties such as proton conductivity and performances in hydrogen fuel cells will be presented. It has been demonstrated that a critical concentration of filler particles can boost the fuel cell performance at low humidification, exhibiting a significant improvement of the maximum power and current density delivered under 30% low-relative humidity (RH) and 70 °C with respect to bare Nafion™-based systems. © 2016 by the authors.

Critical filler concentration in sulfated titania-added nafion™ membranes for fuel cell applications / Sgambetterra, Mirko; Brutti, Sergio; Allodi, Valentina; Mariotto, Gino; Panero, Stefania; Navarra, MARIA ASSUNTA. - In: ENERGIES. - ISSN 1996-1073. - STAMPA. - 9:4(2016). [10.3390/en9040272]

Critical filler concentration in sulfated titania-added nafion™ membranes for fuel cell applications

SGAMBETTERRA, MIRKO;Brutti, Sergio;PANERO, Stefania;NAVARRA, MARIA ASSUNTA
2016

Abstract

In this communication we present a detailed study of Nafion™ composite membranes containing different amounts of nanosized sulfated titania particles, synthesized through an optimized one-step synthesis procedure. Functional membrane properties, such as ionic exchange capacity and water uptake (WU) ability will be described and discussed, together with thermal analysis, atomic force microscopy and Raman spectroscopy data. Also electrochemical properties such as proton conductivity and performances in hydrogen fuel cells will be presented. It has been demonstrated that a critical concentration of filler particles can boost the fuel cell performance at low humidification, exhibiting a significant improvement of the maximum power and current density delivered under 30% low-relative humidity (RH) and 70 °C with respect to bare Nafion™-based systems. © 2016 by the authors.
2016
functionalized tio2 nanoparticles; composite nafion™ membranes; polymer electrolyte membrane fuel cells (pemfcs)
01 Pubblicazione su rivista::01a Articolo in rivista
Critical filler concentration in sulfated titania-added nafion™ membranes for fuel cell applications / Sgambetterra, Mirko; Brutti, Sergio; Allodi, Valentina; Mariotto, Gino; Panero, Stefania; Navarra, MARIA ASSUNTA. - In: ENERGIES. - ISSN 1996-1073. - STAMPA. - 9:4(2016). [10.3390/en9040272]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/870313
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