2004
DOI: 10.1016/j.apcata.2004.09.024
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Catalytic and FT-IR study on the reaction pathway for oxidation of propane and propylene on V- or Mo–V-based catalysts

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Cited by 111 publications
(96 citation statements)
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“…The overall acid strength is quite low, but slightly increased over MoV oxide that shows still some traces of adsorbed ammonia after evacuation at 473 K, whereas complete desorption of NH 3 has been achieved on M1 after evacuation at 453 K. Similar trends were observed by pyridine and ammonia adsorption on chemically related systems composed of a mixture of phases. [43][44][45] The weak acid sites on MoVTeNb oxide might be responsible for undesired C-C bond splitting reactions that lead to the formation of acetic acid and carbon oxides. The results suggest that acidbase catalyzed reaction pathways cannot be excluded but may play perhaps a minor role in the reaction network of propane oxidation over M1.…”
Section: Adsorption Of Ammoniamentioning
confidence: 99%
“…The overall acid strength is quite low, but slightly increased over MoV oxide that shows still some traces of adsorbed ammonia after evacuation at 473 K, whereas complete desorption of NH 3 has been achieved on M1 after evacuation at 453 K. Similar trends were observed by pyridine and ammonia adsorption on chemically related systems composed of a mixture of phases. [43][44][45] The weak acid sites on MoVTeNb oxide might be responsible for undesired C-C bond splitting reactions that lead to the formation of acetic acid and carbon oxides. The results suggest that acidbase catalyzed reaction pathways cannot be excluded but may play perhaps a minor role in the reaction network of propane oxidation over M1.…”
Section: Adsorption Of Ammoniamentioning
confidence: 99%
“…Este hecho podría estar estrechamente relacionado con la desaparición de centros ácidos Brönsted en la superficie del catalizador [149,197].…”
Section: Propiedades Catalíticas De Las Fases M1 Y M2unclassified
“…Esta hipótesis podría explicar también los menores rendimientos a ácido acrílico obtenidos sobre los catalizadores con Sb, respecto a los equivalentes con Te, ya que se ha observado un mayor número de centros ácidos en los catalizadores con Sb [149,150,197]. Probablemente esto es debido a la menor carga del catión Sb III que se incorpora a la red, con respecto al catión Te IV , lo que parece compensarse con la incorporación de protones en las red cristalina, dando como resultado la presencia de especies OH al igual que se observa en los materiales microporosos zeolíticos.…”
Section: Propiedades Catalíticas De Las Fases M1 Y M2unclassified
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