In the present study poly(2,2-(2,6-pyridin)-5,5-bibenzimidazole) was used for the preparation of novel MEAs for high-temperature polymer fuel cells (HT-PEMFCs). We prepared hybrid materials with two types of silica fillers in rder to increase the MEA performances using this polymer. The membranes were characterized in terms of their microstructure and thermal stability. Cell operation tests and Electrochemical Impedance Spectroscopy were used for the characterization of the MEAs. A maximum power density of about 80mWcm-2 was obtained at 300mAcm-2 by using an imidazole-modified silica filler. The EIS technique showed that the fillers chiefly help to reduce the charge transfer resistance of the cathodic side. The gas transfer resistance may be neglected with respect to Rct, at least at low current densities

Kurdakova, V., Quartarone, E., Mustarelli, P., Magistris, A., Caponetti, E., Saladino, M. (2010). PBI-based composite membranes for polymer fuel cells. JOURNAL OF POWER SOURCES, 195(23), 7765-7769 [10.1016/j.jpowsour.2009.09.064].

PBI-based composite membranes for polymer fuel cells

Mustarelli, P
;
2010

Abstract

In the present study poly(2,2-(2,6-pyridin)-5,5-bibenzimidazole) was used for the preparation of novel MEAs for high-temperature polymer fuel cells (HT-PEMFCs). We prepared hybrid materials with two types of silica fillers in rder to increase the MEA performances using this polymer. The membranes were characterized in terms of their microstructure and thermal stability. Cell operation tests and Electrochemical Impedance Spectroscopy were used for the characterization of the MEAs. A maximum power density of about 80mWcm-2 was obtained at 300mAcm-2 by using an imidazole-modified silica filler. The EIS technique showed that the fillers chiefly help to reduce the charge transfer resistance of the cathodic side. The gas transfer resistance may be neglected with respect to Rct, at least at low current densities
Articolo in rivista - Articolo scientifico
Proton exchange membrane PBI Electrochemical Impedance Spectroscopy;
English
2010
195
23
7765
7769
none
Kurdakova, V., Quartarone, E., Mustarelli, P., Magistris, A., Caponetti, E., Saladino, M. (2010). PBI-based composite membranes for polymer fuel cells. JOURNAL OF POWER SOURCES, 195(23), 7765-7769 [10.1016/j.jpowsour.2009.09.064].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/257007
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