Synthesis and characterization of (Mo0.52V0.38W0.1)2O5 used as a catalyst in the oxidative...
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- Título: Synthesis and characterization of (Mo0.52V0.38W0.1)2O5 used as a catalyst in the oxidative dehydrogenation of ethane
- Autor: García Valencia, Juan Francisco; La Salvia, Nathalia; Linhares Rossi, Andre; Eon, Jean-Guillaume
- Publicación original: Journal of Solid State Chemistry, 2022
- Descripción física: PDF
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Nota general:
- Colombia
- Notas de reproducción original: Digitalización realizada por la Biblioteca Virtual del Banco de la República (Colombia)
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- Resumen: Abstract: This work presents a study of mixed molybdenum vanadium and tungsten oxides applied to oxidative dehydrogenation of ethane (ODE). Different oxides were prepared by a microwave-assisted hydrothermal method using oxalic acid as a reducing agent to obtain a crystalline phase of composition (Mo0.52V0.38W0.1)2O5. The materials were studied by XRF, BET, X-ray poder diffraction (XRD), transmission electron microscopy, IR, UV–Vis, TPR-H2 and XPS spectroscopy. The structure with space group C2/m is closely related to that of R–Nb2O5 with cell parameters a ¼ 1215.1 p.m., b ¼ 374.2 p.m., c ¼ 402.0 p.m., and ? ¼ 90.70. This phase is stable under reaction and active and selective to ethylene in the ODE reaction. Comparison with the literature indicates that R–Nb2O5-type matrices constitute an alternative to Mo5O14-type oxides to control the selectivity of active species in ODE.
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- Forma/género: texto
- Idioma: castellano
- Institución origen: Biblioteca Virtual del Banco de la República
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