Autor: |
M.A. Vasiliades, C.M. Damaskinos, P. Djinović, A. Pintar, A.M. Efstathiou |
Jazyk: |
angličtina |
Rok vydání: |
2023 |
Předmět: |
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Zdroj: |
Catalysis Communications, Vol 178, Iss , Pp 106674- (2023) |
Druh dokumentu: |
article |
ISSN: |
1873-3905 |
DOI: |
10.1016/j.catcom.2023.106674 |
Popis: |
The effects of metal loading and particle size of NiCo alloy deposited on Ce0.75Zr0.25O2-δ carrier on the carbon reaction paths of dry reforming of methane at 750 °C with respect to the observed long-term activity profiles was elucidated. Small NiCo nanoparticles (7.8 nm) showed progressive deactivation as opposed to the larger ones (43 nm) which exhibited self-regeneration. Towards this goal, appropriate transient kinetic isotopic experiments (use of 18O2 and 13CO2) and other catalyst characterization studies (transient isothermal reduction, XPS, HAADF-STEM-EDX) were conducted. This work paves the way for the design of highly active and coke-resistant reducible metal oxides-supported NiCo. |
Databáze: |
Directory of Open Access Journals |
Externí odkaz: |
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