Tuning Selectivity in Direct 5-Hydroxymethylfurfural Hydrodeoxygenation to 5-Methylfurfural or 2,5-Bis(hydroxymethyl)furan Over Ni/TiO2 Catalysts

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Tuning Selectivity in Direct 5-Hydroxymethylfurfural Hydrodeoxygenation to 5-Methylfurfural or 2,5-Bis(hydroxymethyl)furan Over Ni/TiO2 Catalysts

Popis výsledku v původním jazyce

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 &amp; 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 &amp; boxH;O activation and in turn promoted a selectivity shift toward BHMF achieving 86% selectivity at nearly full conversion.

Název v anglickém jazyce

Tuning Selectivity in Direct 5-Hydroxymethylfurfural Hydrodeoxygenation to 5-Methylfurfural or 2,5-Bis(hydroxymethyl)furan Over Ni/TiO2 Catalysts

Popis výsledku anglicky

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 &amp; 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 &amp; boxH;O activation and in turn promoted a selectivity shift toward BHMF achieving 86% selectivity at nearly full conversion.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/GF21-45648L" target="_blank" >GF21-45648L: Vliv vlastností katalyzátoru na hydrogenační přeměny kyslíkatých látek získaných z cukrů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

ChemCatChem

ISSN

1867-3880

e-ISSN

1867-3899

Svazek periodika

17

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

13

Strana od-do

"e202401818"

Kód UT WoS článku

001477550300001

EID výsledku v databázi Scopus

2-s2.0-105004169182