Magnetic Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-Pt and Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-Pt@SiO<sub>2</sub> Structures for HDN of Indole
| dc.contributor.author | Dinamarca, Robinson | |
| dc.contributor.author | Valles, Veronica | |
| dc.contributor.author | Ledesma, Brenda | |
| dc.contributor.author | Campos, Cristian H. | |
| dc.contributor.author | Pecchi, Gina | |
| dc.contributor.author | Beltramone, Andrea | |
| dc.date.accessioned | 2025-01-23T19:58:50Z | |
| dc.date.available | 2025-01-23T19:58:50Z | |
| dc.date.issued | 2019 | |
| dc.description.abstract | The effect of a second porous SiO2 shell in the activity and selectivity of the Fe3O4@SiO2-Pt catalyst in the hydrodenitrogenation of indole is reported. The double Fe3O4@SiO2-Pt@SiO2 structure was prepared by coating Fe3O4 nanoparticles with tetraethyl orthosilicate (TEOS) with a further impregnation of 1.0 wt.% of Pt on the (3-aminopropyl)triethoxysilane functionalized Fe3O4@SiO2 structures. The second porous SiO2 shell, obtained by using a hexadecyltrimethylammonium bromide (CTAB) template, covered the Fe3O4@SiO2-Pt catalyst with a well-defined and narrow pore-sized distribution. The full characterization by TEM, inductively coupled plasma-optical emission spectroscopy (ICP-OES), XRD, and N-2 adsorption isotherm at 77 K and vibrating sample magnetometry (VSM) of the catalysts indicates homogeneous core@shell structures with a controlled nano-size of metallic Pt. A significant effect of the double SiO2 shell in the catalytic performance was demonstrated by both a higher activity to eliminate the nitrogen atom of the indole molecule present in model liquid fuel and the improvement of the catalytic stability reaching four consecutive reaction cycles with only a slight conversion level decrease. | |
| dc.description.funder | CONICYT-Chile grant Fondecyt | |
| dc.fuente.origen | WOS | |
| dc.identifier.doi | 10.3390/ma12233878 | |
| dc.identifier.eissn | 1996-1944 | |
| dc.identifier.uri | https://doi.org/10.3390/ma12233878 | |
| dc.identifier.uri | https://repositorio.uc.cl/handle/11534/100764 | |
| dc.identifier.wosid | WOS:000510178700074 | |
| dc.issue.numero | 23 | |
| dc.language.iso | en | |
| dc.revista | Materials | |
| dc.rights | acceso restringido | |
| dc.subject | core@shell | |
| dc.subject | platinum | |
| dc.subject | mesoporous materials | |
| dc.subject | indole HDN | |
| dc.title | Magnetic Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-Pt and Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-Pt@SiO<sub>2</sub> Structures for HDN of Indole | |
| dc.type | artículo | |
| dc.volumen | 12 | |
| sipa.index | WOS | |
| sipa.trazabilidad | WOS;2025-01-12 |