Synthesis of cyclohexylphenol via phenol hydroalkylation using Co2P/zeolite catalysts
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F22%3A10452964" target="_blank" >RIV/00216208:11310/22:10452964 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=32v~.9CIF8" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=32v~.9CIF8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cattod.2021.11.039" target="_blank" >10.1016/j.cattod.2021.11.039</a>
Alternative languages
Result language
angličtina
Original language name
Synthesis of cyclohexylphenol via phenol hydroalkylation using Co2P/zeolite catalysts
Original language description
Cyclohexylphenol (CHP) is a high added-value chemical, extensively used for the preparation of dyes, resins and biocides. This molecule is currently synthetized by phenol alkylation with cyclohexene/cyclohexanol using highly polluting mineral Bronsted acids as catalysts. The present contribution reports the one-pot production of cyclohexylphenol via hydroalkylation, using phenol as the only organic reactant, over a number of bifunctional catalysts consisting of Co2P (5 wt% Co) supported over different zeolites (ferrierite, mordenite, beta and MCM-22). Phenol conversion increased in the order: Co2P/Mordenite (30%) < Co2P/Ferrierite (65%) < Co2P/Beta (77%) < Co2P/MCM-22 (90%), which reflects enhancing dispersion of cobalt phosphide phase and accessibility of acid centres with evolving external surface in nanocrystalline zeolite supports. On the other hand, remarkable differences were observed between the catalysts in terms of CHP formation. The highest values of CHP yield and selectivity (Y(CHP)=43% and S(CHP)=56%) were attained over the Co2P/Beta catalyst, due to the combination of three-dimensional microporosity, large external surface area (as a consequence of its nanocrystalline nature) and highly dispersed Co2P nanoparticles. In addition, it is envisaged that the formation of CoAlPO phases might favour a balanced performance of metal and acid sites for the CHP production.
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
10403 - Physical chemistry
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Catalysis Today
ISSN
0920-5861
e-ISSN
1873-4308
Volume of the periodical
390
Issue of the periodical within the volume
May
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
135-145
UT code for WoS article
000783098100006
EID of the result in the Scopus database
2-s2.0-85120813019