Ni-Bi-Mo/Al2O3 Metal-Oxide Catalysts for CO2-Mediated Oxidative Dehydrogenation of n-Butane into Buta-1,3-diene: Mutual Influence of Components
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A90272%2F25%3A10512411" target="_blank" >RIV/00216208:90272/25:10512411 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=csvY-k274n" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=csvY-k274n</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10562-025-05107-4" target="_blank" >10.1007/s10562-025-05107-4</a>
Alternative languages
Result language
angličtina
Original language name
Ni-Bi-Mo/Al2O3 Metal-Oxide Catalysts for CO2-Mediated Oxidative Dehydrogenation of n-Butane into Buta-1,3-diene: Mutual Influence of Components
Original language description
Ni-Bi-Mo/Al2O3 metal-oxide systems are prepared by co-impregnation of gamma-Al2O3 with water-soluble salts of Ni, Bi, and Mo and are investigated as catalysts for CO2-mediated oxidative dehydrogenation of n-butane into buta-1,3-diene. The structure, morphology, reducibility, re-oxidizing ability, and acid-base properties of the metal-oxide systems have been studied using XRD, SEM-EDX, low-temperature (-196 degrees C) N-2 ad(de)sorption, Raman spectroscopy, TPR, TPRO, and TPD-NH3/CO2 techniques. TPSR-MS measurements with pre-adsorbed n-butane and butenes have been conducted to assess the possibilities of the individual stages of n-butane dehydrogenation on the sample's surface. The adsorption and activation of alkanes on the surface are proposed to be the rate-determining steps of the process. Lewis acid-base pair sites of weak and medium strength, formed with the participation of nickel and molybdenum, are suggested to promote the dehydrogenation reaction. The dehydrogenation of n-butane into mono- and di-olefins is significantly enhanced by the active sites formed with the participation of nickel. The addition of molybdenum to the catalyst composition results in the formation of active oxygen-containing sites that can abstract hydrogen from the alkene molecule. The higher rate of buta-1,3-diene formation achieved on the Ni-Mo/Al2O3 catalyst results from the synergistic effect of nickel- and molybdenum-containing active sites.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
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Continuities
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Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Catalysis Letters
ISSN
1011-372X
e-ISSN
1572-879X
Volume of the periodical
155
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
21
Pages from-to
266
UT code for WoS article
001525412400001
EID of the result in the Scopus database
2-s2.0-105009973308