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EnglishA nanocomposite re-cast Nafion hybrid membrane containing titanium oxide calcined at T = 400 °C as an inorganic filler was developed in order to work at medium temperature in polymer electrolyte fuel cells (PEFCs) maintaining a suitable membrane hydration under fuel cell operative critical conditions. Nanometre TiO2 powder was synthesized via a sol-gel procedure by a rapid hydrolysis of Ti(OiPr)4. The membrane was prepared by mixing a Nafion-dimethylacetammide (DMAc) dispersion with a 3 wt% of TiO2 powder and casting the mixture by Doctor Blade technique. The resulting film was characterised in terms of water uptake and ion exchange capacity (IEC). The membrane was tested in a single cell from 80 to 130°C in humidified H2/air. The obtained results were compared with the commercial Nafion115 and a home-made recast Nafion membrane. Power density values of 0.514 and 0.256 W cm-2 at 0.56 V were obtained at 110 and 130°C, respectively, for the composite Nafion-Titania membrane. Preliminary tests carried out using steam reforming (SR) synthetic fuel at about 110°C have highlighted the benefit of the inorganic filler introduction when PEFC operates at medium temperature and with processed hydrogen. © 2005 Elsevier B.V. All rights reserved.
Saccà, A., Carbone, A., Passalacqua, E., D'Epifanio, A., Licoccia, S., Traversa, E., et al. (2005). Nafion-TiO2 hybrid membranes for medium temperature polymer electrolyte fuel cells (PEFCs). JOURNAL OF POWER SOURCES, 152(1-2), 16-21.
| Tipologia: | Articolo su rivista |
| Citazione: | Saccà, A., Carbone, A., Passalacqua, E., D'Epifanio, A., Licoccia, S., Traversa, E., et al. (2005). Nafion-TiO2 hybrid membranes for medium temperature polymer electrolyte fuel cells (PEFCs). JOURNAL OF POWER SOURCES, 152(1-2), 16-21. |
| IF: | Con Impact Factor ISI |
| Lingua: | English |
| Settore Scientifico Disciplinare: | Settore CHIM/07 - Fondamenti Chimici delle Tecnologie Settore ING-IND/22 - Scienza e Tecnologia dei Materiali |
| Revisione (peer review): | Sì, ma tipo non specificato |
| Tipo: | Articolo |
| Rilevanza: | Rilevanza internazionale |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1016/j.jpowsour.2004.12.053 | |
| Stato di pubblicazione: | Pubblicato |
| Data di pubblicazione: | 2005 |
| Titolo: | Nafion-TiO2 hybrid membranes for medium temperature polymer electrolyte fuel cells (PEFCs) |
| Autori: | |
| Autori: | Saccà, A; Carbone, A; Passalacqua, E; D'Epifanio, A; Licoccia, S; Traversa, E; Sala, E.; Traini, F; Ornelas, R |
| Appare nelle tipologie: | 01 - Articolo su rivista |
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http://hdl.handle.net/2108/15193
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