Basicity determination of SBA-15 doped with different alkaline metals through CO₂ adsorption and isopropanol decomposition
In order to increase the activity and selectivity towards to light olefins in the Fischer-Tropsch synthesis, new support for the role of iron (Fe) are presented. Thus, SBA-15 was synthetized and doped with different alkaline metals preserving the structural characteristics of the mesoporous solid. T...
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| Autores principales: | , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2020
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/123815 |
| Aporte de: |
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I19-R120-10915-123815 |
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dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ingeniería Química SBA-15 Supported iron Alkaline cations CO decomposition Isopropanol reaction Fischer-Tropsch synthesis |
| spellingShingle |
Ingeniería Química SBA-15 Supported iron Alkaline cations CO decomposition Isopropanol reaction Fischer-Tropsch synthesis Reale, Natalia Romina Cagnoli, María Virginia Basicity determination of SBA-15 doped with different alkaline metals through CO₂ adsorption and isopropanol decomposition |
| topic_facet |
Ingeniería Química SBA-15 Supported iron Alkaline cations CO decomposition Isopropanol reaction Fischer-Tropsch synthesis |
| description |
In order to increase the activity and selectivity towards to light olefins in the Fischer-Tropsch synthesis, new support for the role of iron (Fe) are presented. Thus, SBA-15 was synthetized and doped with different alkaline metals preserving the structural characteristics of the mesoporous solid. The samples were characterized by X-ray diffraction at low angles, N₂ adsorption, atomic absorption spectroscopy, CO₂ desorption at programmed temperature and isopropanol test. The alkaline metals (Li, K and Cs) introduction into the channels of the solid, generate basic sites of different strength that are not present in the SBA-15 without doping and do not produce significant changes in the structural and textural properties of the SBA-15, only a densification in the walls of the channels is evidenced. According to the alkaline metal used and through CO₂ adsorption and isopropanol decomposition, it was possible to established the order by the total number of sites: Li >> K ≈ Cs, and the force order for both types of sites (weak and intermediate): Li > Cs > K. |
| format |
Articulo Articulo |
| author |
Reale, Natalia Romina Cagnoli, María Virginia |
| author_facet |
Reale, Natalia Romina Cagnoli, María Virginia |
| author_sort |
Reale, Natalia Romina |
| title |
Basicity determination of SBA-15 doped with different alkaline metals through CO₂ adsorption and isopropanol decomposition |
| title_short |
Basicity determination of SBA-15 doped with different alkaline metals through CO₂ adsorption and isopropanol decomposition |
| title_full |
Basicity determination of SBA-15 doped with different alkaline metals through CO₂ adsorption and isopropanol decomposition |
| title_fullStr |
Basicity determination of SBA-15 doped with different alkaline metals through CO₂ adsorption and isopropanol decomposition |
| title_full_unstemmed |
Basicity determination of SBA-15 doped with different alkaline metals through CO₂ adsorption and isopropanol decomposition |
| title_sort |
basicity determination of sba-15 doped with different alkaline metals through co₂ adsorption and isopropanol decomposition |
| publishDate |
2020 |
| url |
http://sedici.unlp.edu.ar/handle/10915/123815 |
| work_keys_str_mv |
AT realenataliaromina basicitydeterminationofsba15dopedwithdifferentalkalinemetalsthroughco2adsorptionandisopropanoldecomposition AT cagnolimariavirginia basicitydeterminationofsba15dopedwithdifferentalkalinemetalsthroughco2adsorptionandisopropanoldecomposition |
| bdutipo_str |
Repositorios |
| _version_ |
1764820450296201216 |