Unveiling the intrinsic activity of TiO2 in HMF valorisation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43929901" target="_blank" >RIV/60461373:22310/24:43929901 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22320/24:43929901 RIV/60461373:22350/24:43929901 RIV/00216275:25310/24:39922228

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S1385894724073583?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1385894724073583?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2024.155867" target="_blank" >10.1016/j.cej.2024.155867</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Unveiling the intrinsic activity of TiO2 in HMF valorisation

Popis výsledku v původním jazyce

In the context of 5-hydroxymethylfurfural (HMF) valorisation, TiO2 has emerged as a promising support. However, its intrinsic activity and underlying structural parameters remained undiscovered. This study elucidates the close relationship between structural and surface properties of TiO2 (e.g. crystalline size, surface area, and the number and type of acid sites) and its activity in HMF conversion. Lewis acid sites were found to be the exclusive acid sites present in anatase TiO2 samples, and their abundance correlated strongly with the overall surface area of TiO2. HMF conversion over TiO2 led to the simultaneous formation of 5-methylfurfural (5-MF) and 2,5-diformylfuran (2,5-DFF). Their formation was attributed to an intermolecular hydride transfer occurring over the Lewis acid sites. This opens up the possibility of selectively obtaining 5-MF and 2,5-DFF using solely TiO2 active sites. These findings provide valuable insights for designing TiO2-supported metal catalysts for future energy and environmental applications, aligning with green chemistry principles. © 2024 Elsevier B.V.

Název v anglickém jazyce

Unveiling the intrinsic activity of TiO2 in HMF valorisation

Popis výsledku anglicky

In the context of 5-hydroxymethylfurfural (HMF) valorisation, TiO2 has emerged as a promising support. However, its intrinsic activity and underlying structural parameters remained undiscovered. This study elucidates the close relationship between structural and surface properties of TiO2 (e.g. crystalline size, surface area, and the number and type of acid sites) and its activity in HMF conversion. Lewis acid sites were found to be the exclusive acid sites present in anatase TiO2 samples, and their abundance correlated strongly with the overall surface area of TiO2. HMF conversion over TiO2 led to the simultaneous formation of 5-methylfurfural (5-MF) and 2,5-diformylfuran (2,5-DFF). Their formation was attributed to an intermolecular hydride transfer occurring over the Lewis acid sites. This opens up the possibility of selectively obtaining 5-MF and 2,5-DFF using solely TiO2 active sites. These findings provide valuable insights for designing TiO2-supported metal catalysts for future energy and environmental applications, aligning with green chemistry principles. © 2024 Elsevier B.V.

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

2024

Kód důvěrnosti údajů

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

Název periodika

Chemical Engineering Journal

ISSN

1385-8947

e-ISSN

1873-3212

Svazek periodika

498

Číslo periodika v rámci svazku

15 October 2024

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

155867

Kód UT WoS článku

001318356200001

EID výsledku v databázi Scopus

2-s2.0-85203880755