Guaiacol hydrodeoxygenation over Ni2P supported on 2D-zeolites
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F20%3A10419824" target="_blank" >RIV/00216208:11310/20:10419824 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=MInVyCXjKh" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=MInVyCXjKh</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cattod.2019.11.015" target="_blank" >10.1016/j.cattod.2019.11.015</a>
Alternative languages
Result language
angličtina
Original language name
Guaiacol hydrodeoxygenation over Ni2P supported on 2D-zeolites
Original language description
Different 2D zeolites, namely lamellar ZSM-5 (L-ZSM-5), the corresponding silica pillared ZSM-5 (PI-ZSM-5) and an MCM-22 sample, were investigated as nickel phosphide supports and evaluated as catalysts for guaiacol hydrodeoxygenation (HDO). Characterization confirmed that all loaded materials preserved a high crystallinity degree with formation of the Ni2P phase. The incorporation of Ni2P reduced adsorption capacity, affecting differently the micro- or mesoporous systems, depending on the zeolitic support. Ni2P deposition also modified the acidic properties of the zeolites due to the generation of new acid sites of moderate strength attributed to both Ni delta+ species (Lewis acid sites) and the presence of residual P - OH moieties (weak Bronsted acid sites). The catalysts were tested in the HDO of guaiacol at 220 and 260 degrees C and 40 bar of H-2. In all cases, ZSM-5 based catalysts exhibited higher conversions and HDO efficiencies than Ni2P/MCM-22, which denotes that MFI zeolitic structure favors the deoxygenation of phenolic compounds, yielding cyclohexane as major reaction product. This excellent catalytic performance is attributed to the combination of high surface area and optimal acidic properties since a synergetic effect was achieved between the acid sites of the raw zeolitic support and those provided by nickel phosphide having an enhanced accessibility. Thus, the best HDO performance was obtained over Ni2P supported on the pillared ZSM-5, showing a 78 % of guaiacol conversion and 95 % of selectivity towards deoxygenated molecules.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/GX19-27551X" target="_blank" >GX19-27551X: ADORable catalysts</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
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
—
Volume of the periodical
345
Issue of the periodical within the volume
April
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
48-58
UT code for WoS article
000522039100007
EID of the result in the Scopus database
2-s2.0-85075809215