dor_id: 4110194

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856.4.0.u: https://jart.icat.unam.mx/index.php/jart/article/view/746/709

100.1.#.a: Villarreal, Aline; Garbarino, Gabriella; Riani, Paola; Alejandre, Aida Gutiérrez; Ramírez, Jorge; Busca, Guido

524.#.#.a: Villarreal, Aline, et al. (2018). Influence of incorporating a small amount of silica on the catalytic performance of a MoO3/Al2O3 catalyst in ethanol oxidative dehydrogenation. Journal of Applied Research and Technology; Vol. 16 Núm. 6. Recuperado de https://repositorio.unam.mx/contenidos/4110194

245.1.0.a: Influence of incorporating a small amount of silica on the catalytic performance of a MoO3/Al2O3 catalyst in ethanol oxidative dehydrogenation

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Ciencias Aplicadas y Tecnología, UNAM

264.#.0.c: 2018

264.#.1.c: 2019-06-29

653.#.#.a: Molybdenum oxide catalysts; alumina support; dispersion of Mo oxide catalysts; acetaldehyde production; ethanol oxy-dehydrogenation

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-SA 4.0 Internacional, https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico gabriel.ascanio@icat.unam.mx

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041.#.7.h: eng

520.3.#.a: The influence of incorporating a small amount of silica on the catalytic performance of MoO3/Al2O3 catalyst was studied. Molybdenum supported on pure alumina and 5% SiO2-Al2O3 supports were synthesized. The catalysts were characterized by XRD, Raman, UV-Vis and IR spectroscopies, FE-SEM microscopy, and their activity was evaluated in the oxidative dehydrogenation of ethanol to acetaldehyde. Molybdenum supported on pure alumina gives a 74% yield to acetaldehyde (at 573 K) due to the generation of oxy-dehydrogenation active sites by molybdenum and to the decrement of the alumina dehydration sites. For the molybdenum catalyst supported on silica-containing alumina, the molybdenum species were displaced from the strongest alumina’s acid-base couples, located on nanoparticles edges, corners and defects, to weaker ones located on plane faces causing the rise of weakly bonded species with less active redox behavior.

773.1.#.t: Journal of Applied Research and Technology; Vol. 16 Núm. 6

773.1.#.o: https://jart.icat.unam.mx/index.php/jart

022.#.#.a: ISSN electrónico: 2448-6736; ISSN: 1665-6423

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doi: https://doi.org/10.22201/icat.16656423.2018.16.6.746

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Artículo

Influence of incorporating a small amount of silica on the catalytic performance of a MoO3/Al2O3 catalyst in ethanol oxidative dehydrogenation

Villarreal, Aline; Garbarino, Gabriella; Riani, Paola; Alejandre, Aida Gutiérrez; Ramírez, Jorge; Busca, Guido

Instituto de Ciencias Aplicadas y Tecnología, UNAM, publicado en Journal of Applied Research and Technology, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Cita

Villarreal, Aline, et al. (2018). Influence of incorporating a small amount of silica on the catalytic performance of a MoO3/Al2O3 catalyst in ethanol oxidative dehydrogenation. Journal of Applied Research and Technology; Vol. 16 Núm. 6. Recuperado de https://repositorio.unam.mx/contenidos/4110194

Descripción del recurso

Autor(es)
Villarreal, Aline; Garbarino, Gabriella; Riani, Paola; Alejandre, Aida Gutiérrez; Ramírez, Jorge; Busca, Guido
Tipo
Artículo de Investigación
Área del conocimiento
Ingenierías
Título
Influence of incorporating a small amount of silica on the catalytic performance of a MoO3/Al2O3 catalyst in ethanol oxidative dehydrogenation
Fecha
2019-06-29
Resumen
The influence of incorporating a small amount of silica on the catalytic performance of MoO3/Al2O3 catalyst was studied. Molybdenum supported on pure alumina and 5% SiO2-Al2O3 supports were synthesized. The catalysts were characterized by XRD, Raman, UV-Vis and IR spectroscopies, FE-SEM microscopy, and their activity was evaluated in the oxidative dehydrogenation of ethanol to acetaldehyde. Molybdenum supported on pure alumina gives a 74% yield to acetaldehyde (at 573 K) due to the generation of oxy-dehydrogenation active sites by molybdenum and to the decrement of the alumina dehydration sites. For the molybdenum catalyst supported on silica-containing alumina, the molybdenum species were displaced from the strongest alumina’s acid-base couples, located on nanoparticles edges, corners and defects, to weaker ones located on plane faces causing the rise of weakly bonded species with less active redox behavior.
Tema
Molybdenum oxide catalysts; alumina support; dispersion of Mo oxide catalysts; acetaldehyde production; ethanol oxy-dehydrogenation
Idioma
eng
ISSN
ISSN electrónico: 2448-6736; ISSN: 1665-6423

Enlaces