| Autor: |
P.J. Lloreda-Jurado, Krishnakumar Balu, Jesús Hernández-Saz, E. Chicardi, Begoña Ferrari, R. Sepúlveda |
| Přispěvatelé: |
Universidad de Sevilla. Departamento de Ingeniería y Ciencia de los Materiales y del Transporte, Universidad de Sevilla. TEP973: Tecnología de polvos y corrosión |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Popis: |
Hydrogen is the next energy vector for a decarbonization society but industrial production is still methane-based. The Steam Iron Process (SIP) could provide a carbon-free production and safety storage option. Here, we show that a Fe2O3-3 wt% of Al2O3 foams created by freeze-casting withstand 10 redox cycles at different temperatures with no reduction in performance or pore shrinking. The use of stearic acid as a dispersant agent/binder produces the porous structure enhancement of the foam and promotes the early reduction of the hematite phase during foam sintering. The Al2O3 incorporation was detected as a solid solution in the Fe2O3 phase at the particle surface. This result is relevant as correlated the positive values of the zeta potential observed. Freeze-casted foams could improve long-term redox performances combining a unique tailored interconnected pore structure with a specific chemical composition. Ministerio de Ciencia e Innovación – Agencia Estatal de Investigación – FEDER MAT2016-76713-P Universidad de Sevilla PIF II.2A |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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