Tuning Selectivity in Direct 5-Hydroxymethylfurfural Hydrodeoxygenation to 5-Methylfurfural or 2,5-Bis(hydroxymethyl)furan Over Ni/TiO2 Catalysts
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F25%3A43931609" target="_blank" >RIV/60461373:22320/25:43931609 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/cctc.202401818" target="_blank" >https://doi.org/10.1002/cctc.202401818</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/cctc.202401818" target="_blank" >10.1002/cctc.202401818</a>
Alternative languages
Result language
angličtina
Original language name
Tuning Selectivity in Direct 5-Hydroxymethylfurfural Hydrodeoxygenation to 5-Methylfurfural or 2,5-Bis(hydroxymethyl)furan Over Ni/TiO2 Catalysts
Original language description
The platform molecule 5-Hydroxymethylfurfural (HMF) can be derived from biomass feedstocks and catalytically hydrogenated into various high value molecules. Its conversion to 5-methylfurfural (5-MF), a versatile synthetic intermediate and perfuming agent is challenging as the selective hydrodeoxygenation of the C-OH group in HMF is far less favorable kinetically and thermodynamically than the hydrogenation of the C & boxH;O group, which leads to 2,5-bis(hydroxymethyl)furan (BHMF). Herein, for the first time we demonstrate that Ni/TiO2 catalysts can be tuned to promote the selective removal of a hydroxyl group in the presence of an aldehyde moiety, achieving a high 5-MF yield. Among various synthesis approaches, the direct ion-exchange incorporation of Ni into a TiO2 network prepared via an alginate synthesis route enabled identifying key factors directing the reaction selectivity toward 5-MF. The highest 5-MF selectivity (86%) at nearly full conversion was favored by high acidity and ultra-high dispersion of Ni atoms on the surface, while the crucial role of titania was discussed. By contrast, increasing the reduction temperature to 700 degrees C significantly lowered acidity and led to the formation of larger Ni particles, which favored C & boxH;O activation and in turn promoted a selectivity shift toward BHMF achieving 86% selectivity at nearly full conversion.
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
20704 - Energy and fuels
Result continuities
Project
<a href="/en/project/GF21-45648L" target="_blank" >GF21-45648L: Controlling reaction pathways in hydrogenation of sugar-derived oxygenates by catalyst design</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
ChemCatChem
ISSN
1867-3880
e-ISSN
1867-3899
Volume of the periodical
17
Issue of the periodical within the volume
March
Country of publishing house
DE - GERMANY
Number of pages
13
Pages from-to
"e202401818"
UT code for WoS article
001477550300001
EID of the result in the Scopus database
2-s2.0-105004169182