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Topics in Catalysis
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publication venue for: Relating the Synthesis Method of VOX/CeO2/SiO2 Catalysts to Red-Ox Properties, Acid Sites, and Catalytic Activity for the Oxidative Dehydrogenation of Propane and n-Butane
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date: 2026-08-24T02:51:56
publisher: vivo
type: Document
label: RDF description of Relating the Synthesis Method of VOX/CeO2/SiO2 Catalysts to Red-Ox Properties, Acid Sites, and Catalytic Activity for the Oxidative Dehydrogenation of Propane and n-Butane - http://orbis.uaslp.mx/vivo/individual/scopus10013

Relating the Synthesis Method of VOX/CeO2/SiO2 Catalysts to Red-Ox Properties, Acid Sites, and Catalytic Activity for the Oxidative Dehydrogenation of Propane and n-Butane
type: Document
abstract: Four V-Ce/SiO2 catalysts were synthesized, using V grafting via VO(O-iC3H7)3 on Ce-loaded Aerosil support, with Ce incorporation either by grafting with Ce(O-iC3H7)4 (VOx/CeO2/S-GA and VOx/CeO2/S-GB) or by incipient wetness impregnation with Ce salt (VOx/CeO2/S-IA and VOx/CeO2/S-IB). Vanadium loadings were similar, while Ce was loaded to two different levels. Raman and X-ray diffraction (XRD) analysis indicated significant differences in VOx speciation: Vanadium pentoxide (V2O5) nano-crystals were prevalent on those catalysts synthesized via Ce impregnation, and absent from the catalysts prepared with grafted Ce. Cerium vanadate (CeVO4) phase was detected in catalyst prepared via Ce grafted at one theoretical monolayer coverage. Microcalorimetry results show that V2O5 species found on VOx/CeO2/S-IA are related to acid sites (acid strength > 90 kJ/mol) responsible for the oxidative dehydrogenation (ODH) reaction of n-butane. Catalyst acidity in VOx/CeO2/S-IA, combined with the redox properties of the vanadium species on the same material, promoted a high selectivity to butadiene and cis- and trans-2-butenes, which subsequently reacted in a Diels-Alder addition to produce benzaldehyde and total oxidation products. In contrast, the lack of acidity in VOx/CeO2/S-GA led to very low selectivity (< 20%25) to dehydrogenation products in both the ODH of butane and propane. © 2022, The Author(s), under exclusive licence to Springer Science Business Media, LLC, part of Springer Nature.
related by: authorship_69265
related by: authorship_69262
origen: scopus
issue: 13-16
type: Thing
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doi: 10.1007/s11244-022-01661-y
abstract: Four V-Ce/SiO2 catalysts were synthesized, using V grafting via VO(O-iC3H7)3 on Ce-loaded Aerosil support, with Ce incorporation either by grafting with Ce(O-iC3H7)4 (VOx/CeO2/S-GA and VOx/CeO2/S-GB) or by incipient wetness impregnation with Ce salt (VOx/CeO2/S-IA and VOx/CeO2/S-IB). Vanadium loadings were similar, while Ce was loaded to two different levels. Raman and X-ray diffraction (XRD) analysis indicated significant differences in VOx speciation: Vanadium pentoxide (V2O5) nano-crystals were prevalent on those catalysts synthesized via Ce impregnation, and absent from the catalysts prepared with grafted Ce. Cerium vanadate (CeVO4) phase was detected in catalyst prepared via Ce grafted at one theoretical monolayer coverage. Microcalorimetry results show that V2O5 species found on VOx/CeO2/S-IA are related to acid sites (acid strength > 90 kJ/mol) responsible for the oxidative dehydrogenation (ODH) reaction of n-butane. Catalyst acidity in VOx/CeO2/S-IA, combined with the redox properties of the vanadium species on the same material, promoted a high selectivity to butadiene and cis- and trans-2-butenes, which subsequently reacted in a Diels-Alder addition to produce benzaldehyde and total oxidation products. In contrast, the lack of acidity in VOx/CeO2/S-GA led to very low selectivity (< 20%25) to dehydrogenation products in both the ODH of butane and propane. © 2022, The Author(s), under exclusive licence to Springer Science%2bBusiness Media, LLC, part of Springer Nature.
has funding vehicle: Consejo Nacional de Ciencia y Tecnología, CONACYT
type: Entity
page start: 1408
volume: 65
related by: authorship_69261
freetext keyword: Acid site; Benzaldehyde; Diels-Alder reaction; Oxidative dehydrogenation; Redox site; Vanadium oxide catalyst Butane; Catalyst activity; Catalyst selectivity; Cerium; Cerium compounds; Grafting (chemical); Impregnation; Propane; Silicon; Vanadium pentoxide; X ray diffraction analysis; Acid site; Benzaldehyde; Diels-Alder reaction; n-Butane; Oxidative dehydrogenations; Redox sites; Synthesis method; Synthesised; Vanadium oxide catalysts; ] catalyst; Dehydrogenation
related by: authorship_69264
date time value: article date 10014
type: Generically Dependent Continuant
most specific type: Article
estado: published
type: Article
type: Continuant
has publication venue: Topics in Catalysis
most specific type: Document
crisid: 10014
related by: authorship_69266
e iscopus: 2-s2.0-85134416358
related by: authorship_69263
freetext keyword: Acid site; Benzaldehyde; Diels-Alder reaction; Oxidative dehydrogenation; Redox site; Vanadium oxide catalyst Butane; Catalyst activity; Catalyst selectivity; Cerium; Cerium compounds; Grafting (chemical); Impregnation; Propane; Silicon; Vanadium pentoxide; X ray diffraction analysis; Acid site; Benzaldehyde; Diels-Alder reaction; n-Butane; Oxidative dehydrogenations; Redox sites; Synthesis method; Synthesised; Vanadium oxide catalysts; ]+ catalyst; Dehydrogenation
page end: 1418

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Consejo Nacional de Ciencia y Tecnología, CONACYT
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type: BFO_0000020
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type: Thing
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funding vehicle for: Relating the Synthesis Method of VOX/CeO2/SiO2 Catalysts to Red-Ox Properties, Acid Sites, and Catalytic Activity for the Oxidative Dehydrogenation of Propane and n-Butane

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