Solid micellar Ru single-atom catalysts ...
Type de document :
Article dans une revue scientifique: Article original
URL permanente :
Titre :
Solid micellar Ru single-atom catalysts for the water-free hydrogenation of CO2 to formic acid
Auteur(s) :
Wang, Qiyan [Auteur]
Santos, Sara [Auteur]
Urbina-Blanco, César A. [Auteur]
Hernández, Willinton Y. [Auteur]
Impéror-Clerc, Marianne [Auteur]
Vovk, Evgeny I. [Auteur]
Marinova, Maya [Auteur]
Institut Chevreul - FR2638
Ersen, Ovidiu [Auteur]
Baaziz, Walid [Auteur]
Safonova, Olga V. [Auteur]
Khodakov, Andrei [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Saeys, Mark [Auteur]
Ordomsky, Vitaly [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Santos, Sara [Auteur]
Urbina-Blanco, César A. [Auteur]
Hernández, Willinton Y. [Auteur]
Impéror-Clerc, Marianne [Auteur]
Vovk, Evgeny I. [Auteur]
Marinova, Maya [Auteur]
Institut Chevreul - FR2638
Ersen, Ovidiu [Auteur]
Baaziz, Walid [Auteur]
Safonova, Olga V. [Auteur]
Khodakov, Andrei [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Saeys, Mark [Auteur]
Ordomsky, Vitaly [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Titre de la revue :
Applied Catalysis B. Environmental
Nom court de la revue :
Applied Catalysis B: Environmental
Numéro :
290
Pagination :
120036
Date de publication :
2021-08-05
ISSN :
09263373
Discipline(s) HAL :
Chimie/Catalyse
Résumé en anglais : [en]
The catalytic hydrogenation of CO2 to formic acid is one of the most promising pathways towards a renewable hydrogen-storage system. The reaction is usually performed in aqueous phase in the presence of basic molecules ...
Lire la suite >The catalytic hydrogenation of CO2 to formic acid is one of the most promising pathways towards a renewable hydrogen-storage system. The reaction is usually performed in aqueous phase in the presence of basic molecules over homogeneous or heterogeneous catalysts, generating relatively dilute formate solutions (<1 M). The newly designed solid micellar Ru single-atom catalyst enables efficient and stable water-free CO2 hydrogenation to formate under mild reaction conditions. Concentrated formate solutions (up to 4 M) are produced directly from the hydrogenation of carbon dioxide in water-free tertiary amine. In the catalyst, Ru(III) single sites are incorporated into the walls of MCM-41 during hydrolysis creating a solid micelle structure. The presence of the CTA+ surfactant in the pores of MCM-41 stabilizes the Ru sites and prevents catalyst deactivation. DFT modelling suggests that the reaction proceeds via heterolytic hydrogen splitting, forming a Ru-H species and subsequent hydride transfer to CO2.Lire moins >
Lire la suite >The catalytic hydrogenation of CO2 to formic acid is one of the most promising pathways towards a renewable hydrogen-storage system. The reaction is usually performed in aqueous phase in the presence of basic molecules over homogeneous or heterogeneous catalysts, generating relatively dilute formate solutions (<1 M). The newly designed solid micellar Ru single-atom catalyst enables efficient and stable water-free CO2 hydrogenation to formate under mild reaction conditions. Concentrated formate solutions (up to 4 M) are produced directly from the hydrogenation of carbon dioxide in water-free tertiary amine. In the catalyst, Ru(III) single sites are incorporated into the walls of MCM-41 during hydrolysis creating a solid micelle structure. The presence of the CTA+ surfactant in the pores of MCM-41 stabilizes the Ru sites and prevents catalyst deactivation. DFT modelling suggests that the reaction proceeds via heterolytic hydrogen splitting, forming a Ru-H species and subsequent hydride transfer to CO2.Lire moins >
Langue :
Anglais
Audience :
Non spécifiée
Vulgarisation :
Non
Établissement(s) :
CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Collections :
Équipe(s) de recherche :
Catalyse pour l’énergie et la synthèse de molécules plateforme (CEMOP)
Date de dépôt :
2022-03-24T09:02:18Z