Hydrodesulfurization Activities of NiMo Catalysts Supported on Mechanochemically Prepared Al‐Ce Mixed Oxides.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F16%3A00455543" target="_blank" >RIV/67985858:_____/16:00455543 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/S1872-2067(15)61016-6" target="_blank" >http://dx.doi.org/10.1016/S1872-2067(15)61016-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/S1872-2067(15)61016-6" target="_blank" >10.1016/S1872-2067(15)61016-6</a>
Alternative languages
Result language
angličtina
Original language name
Hydrodesulfurization Activities of NiMo Catalysts Supported on Mechanochemically Prepared Al‐Ce Mixed Oxides.
Original language description
Al2O3‐CeO2 supports containing 1–10 wt% Ce were prepared mechanochemically by milling aluminum and/or cerium nitrates with NH4HCO3. Heteropolymolybdate, (NH4)4NiMo6O24, was used as thenprecursor of the Ni and Mo to prepare NiMo6/Al2O3‐CeO2 components in catalysts by impregnation method. The physicochemical properties of the catalysts were determined using chemical analysis, X‐ray diffraction, temperature‐programmed H2 reduction, temperature‐programmed NH3 desorption, X‐ray photoelectron spectroscopy (XPS), and the Brunauer–Emmett–Teller method. The catalyst acidity decreased with increasing Ce concentration in the support. XPS showed that the NiS/MoS ratio decreased two‐fold for the Ce‐modified alumina support. NiMo6/Al2O3, which had the highest acidity, showed the highest activity in hydrodesulfurization of 1‐benzothiophene (normalized per weight of catalyst). The concentration of surface MoOxSy species (which is equal to the concentration of Mo5+) gradually decreased to zero for catalysts with Ce concentrations 10 wt%. However, the activities of all the catalysts prepared mechanochemically from Al2O3 and Al2O3‐CeO2nsupports significantly exceeded that of a reference NiMo6/Al2O3 catalyst prepared by impregnation method using the same precursor and with the same composition.
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
20402 - Chemical process engineering
Result continuities
Project
<a href="/en/project/GAP106%2F11%2F0902" target="_blank" >GAP106/11/0902: Unconventional Composition and Preparation of Sulfide Hydrotreating Catalysts</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chinese Journal of Catalysis
ISSN
0253-9837
e-ISSN
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Volume of the periodical
37
Issue of the periodical within the volume
2
Country of publishing house
CN - CHINA
Number of pages
10
Pages from-to
258-267
UT code for WoS article
000371376600007
EID of the result in the Scopus database
2-s2.0-84958181330