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Managutti, P. B., Yu, H., Hernandez, O., Prestipino, C., Dorcet, V., Wang, H., Hansen, T. C. & Bahout, M. (2023) Exsolution of Co-Fe Alloy Nanoparticles on the PrBaFeCoO5+? Layered Perovskite Monitored by Neutron Powder Diffraction and Catalytic Effect on Dry Reforming of Methane. Acs Applied Materials & Interfaces, 
Added by: Richard Baschera (2023-05-19 08:38:28)   Last edited by: Richard Baschera (2023-05-19 08:48:45)
Type de référence: Article
DOI: 10.1021/acsami.2c22239
Numéro d'identification (ISBN etc.): 1944-8244
Clé BibTeX: Managutti2023
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Créateurs: Bahout, Dorcet, Hansen, Hernandez, Managutti, Prestipino, Wang, Yu
Collection: Acs Applied Materials & Interfaces
Consultations : 1/188
Indice de consultation : 10%
Indice de popularité : 2.5%
Reversible exsolution and dissolution of metal nanoparticles (NPs) in complex oxides have been investigated as an efficient strategy to improve the performance and durability of the catalysts for thermal and electrochemical energy conversion. Here, in situ exsolution of Co-Fe alloy NPs from the layered perovskite PrBaFeCoO5+delta (PBFC) and their dissolution back into the oxide host have been monitored for the first time by in situ neutron powder diffraction and confirmed by X-ray diffraction and electron microscopy. Catalytic tests for dry reforming of methane showed stable operation over similar to 100 h at 800 degrees C with negligible carbon deposition (<0.3 mg/gcat h). The CO2 and CH4 conversions are among the highest achieved by layered double perovskites. The cyclability of the PBFC catalyst and the potential to improve the catalytic activity by adjusting the composition, size, and the NP distribution would pave the way for highly efficient energy conversion applications.
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