Title :

Identifying Metal-Halogen Bonding for Hydrogen-Induced Acid Generation in Bifunctional Catalysis

Author(s) :

Zhou, Yong [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Trentesaux, Martine [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Marinova, Maya [Auteur]
Université de Lille, Sciences et Technologies
Cherniak, Sergei [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Morin, Jean-Charles [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Dubois, Melanie [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Eyley, Samuel [Auteur]
Catholic University of Leuven = Katholieke Universiteit Leuven [KU Leuven]
Thielemans, Wim [Auteur]
Catholic University of Leuven = Katholieke Universiteit Leuven [KU Leuven]
Martin-Diaconescu, Vlad [Auteur]
ALBA Synchrotron light source [Barcelone]
Khodakov, Andrei [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Zaffran, Jeremie [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Ordomsky, Vitaly [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]

Journal title :

ACS Catalysis

Abbreviated title :

ACS Catal.

Volume number :

13

Pages :

6351–6364

Publisher :

American Chemical Society

Publication date :

2023-04-24

ISSN :

2155-5435

English keyword(s) :

metal
halogen
acidity
hydrogen
bifunctional catalysis
furfural
5-hydroxymethylfurfural

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

Within conventional bifunctional catalysts, active metal sites are associated with metal components, while acid sites are usually localized over oxide supports. The modification of metal sites by halogens provides an ...
Show more >Within conventional bifunctional catalysts, active metal sites are associated with metal components, while acid sites are usually localized over oxide supports. The modification of metal sites by halogens provides an opportunity to generate acidity via the heterolytic dissociation of hydrogen directly over metal sites. Herein, we report the results of high-throughput screening of the combinations of different metals (Co, Ni, Ru, Pt, Pd, Rh) and halogens (Cl, Br, I) for acid site generation from hydrogen in the hydrogenation of furfural and 5-hydroxymethylfurfural. The results demonstrate that only Pd and Pt catalysts demonstrate the formation of acid sites by interaction with Br, Cl, and I. The characterization in combination with density functional theory (DFT) modeling indicates hydrogen heterolytic dissociation over halogens localized at the edges and corners of Pd and Pt nanoparticles with an increase in strength of the acid sites with an increase of electronegativity of the halogen.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois

Collections :

• Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

Catalyse pour l’énergie et la synthèse de molécules plateforme (CEMOP)

Submission date :

2023-06-05T08:19:39Z
2023-06-27T10:00:45Z
2023-06-28T10:09:03Z