Hydrogen is the ideal energy vector to reduce our fossil-fuels dependency and diminish the climate change consequence. However, current production is still methane based. It is possible to produce hydrogen using bioethanol from the alcoholic fermentation of organic waste by chemical looping processes, but unfortunately current redox systems generate hydrogen with significant traces of CO. In the case of proton exchange membrane fuel cells (PEMFC), hydrogen must be highly purified to produce electricity. Here, high porosity interconnected Fe2O3 foams doped with 2 wt% Al2O3 were manufactured by the freeze-casting method, obtaining around 5.1 mmolH2·gsample−1 of highly pure hydrogen (<10 ppm of CO) consuming only 3.42 mmol of ethanol on each redox cycles, with no deactivation. This result shows the possibility of using an abundant and inexpensive raw material as the iron oxide to scale-up the direct pure H2 production and facilitates its use in the automotive sector.

Green hydrogen production using doped Fe2O3 foams / Damizia, M.; Lloreda-Jurado, P. J.; De Filippis, P.; de Caprariis, B.; Chicardi, E.; Sepulveda, R.. - In: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. - ISSN 0360-3199. - 51:(2024), pp. 834-845. [10.1016/j.ijhydene.2023.09.008]

Green hydrogen production using doped Fe2O3 foams

Damizia M.
Primo
;
De Filippis P.;de Caprariis B.;
2024

Abstract

Hydrogen is the ideal energy vector to reduce our fossil-fuels dependency and diminish the climate change consequence. However, current production is still methane based. It is possible to produce hydrogen using bioethanol from the alcoholic fermentation of organic waste by chemical looping processes, but unfortunately current redox systems generate hydrogen with significant traces of CO. In the case of proton exchange membrane fuel cells (PEMFC), hydrogen must be highly purified to produce electricity. Here, high porosity interconnected Fe2O3 foams doped with 2 wt% Al2O3 were manufactured by the freeze-casting method, obtaining around 5.1 mmolH2·gsample−1 of highly pure hydrogen (<10 ppm of CO) consuming only 3.42 mmol of ethanol on each redox cycles, with no deactivation. This result shows the possibility of using an abundant and inexpensive raw material as the iron oxide to scale-up the direct pure H2 production and facilitates its use in the automotive sector.
2024
Chemical looping; Fe2O3; foams; Freeze-casting; PEM fuel cell; Pure hydrogen
01 Pubblicazione su rivista::01a Articolo in rivista
Green hydrogen production using doped Fe2O3 foams / Damizia, M.; Lloreda-Jurado, P. J.; De Filippis, P.; de Caprariis, B.; Chicardi, E.; Sepulveda, R.. - In: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY. - ISSN 0360-3199. - 51:(2024), pp. 834-845. [10.1016/j.ijhydene.2023.09.008]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1703497
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