Flat, free-standing phosphomolybdic acid and mixed phosphotungstic/phosphomolybdic acid chitosan membranes were prepared by in-situ ionotropic gelation process at room temperature on porous alumina support firstly impregnated by heteropolyacid. The polymeric films were tested as proton conductor in low temperature H2 – O2 fuel cell. Chitosan/phosphomolybdic acid membranes allowed to get peak power of 60 mW cm-2, while better results were obtained with mixed membranes, reticulated and functionalized in 30% H3PMo12O40, - 70% H3PW12O40 aqueous solution, allowing to measure a peak power of 140 mW cm-2 with a proton conductivity of ~ 2.5 mS cm-1.

Santamaria, M., Pecoraro, C.M., Di Franco, F., Di Quarto, F. (2016). Heteropolyacids - Chitosan Membranes for H2/O2 Low Temperature Fuel Cells. ECS TRANSACTIONS, 75(14), 597-605 [10.1149/07514.0597ecst].

Heteropolyacids - Chitosan Membranes for H2/O2 Low Temperature Fuel Cells

SANTAMARIA, Monica;DI FRANCO, Francesco;DI QUARTO, Francesco
2016-01-01

Abstract

Flat, free-standing phosphomolybdic acid and mixed phosphotungstic/phosphomolybdic acid chitosan membranes were prepared by in-situ ionotropic gelation process at room temperature on porous alumina support firstly impregnated by heteropolyacid. The polymeric films were tested as proton conductor in low temperature H2 – O2 fuel cell. Chitosan/phosphomolybdic acid membranes allowed to get peak power of 60 mW cm-2, while better results were obtained with mixed membranes, reticulated and functionalized in 30% H3PMo12O40, - 70% H3PW12O40 aqueous solution, allowing to measure a peak power of 140 mW cm-2 with a proton conductivity of ~ 2.5 mS cm-1.
2016
Santamaria, M., Pecoraro, C.M., Di Franco, F., Di Quarto, F. (2016). Heteropolyacids - Chitosan Membranes for H2/O2 Low Temperature Fuel Cells. ECS TRANSACTIONS, 75(14), 597-605 [10.1149/07514.0597ecst].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/223304
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