Selective photocatalytic conversion of ...
Type de document :
Article dans une revue scientifique: Article original
PMID :
URL permanente :
Titre :
Selective photocatalytic conversion of methane into carbon monoxide over zinc-heteropolyacid-titania nanocomposites
Auteur(s) :
Yu, Xiang [Auteur]
De Waele, Vincent [Auteur]
Löfberg, Axel [Auteur]
Ordomsky, Vitaly [Auteur]
Khodakov, Andrei [Auteur]
De Waele, Vincent [Auteur]

Löfberg, Axel [Auteur]

Ordomsky, Vitaly [Auteur]

Khodakov, Andrei [Auteur]

Titre de la revue :
Nature Communications
Nom court de la revue :
Nat Commun
Numéro :
10
Pagination :
700
Date de publication :
2019-02-11
ISSN :
2041-1723
Discipline(s) HAL :
Chimie/Catalyse
Résumé en anglais : [en]
Chemical utilization of vast fossil and renewable feedstocks of methane remains one of the most important challenges of modern chemistry. Herein, we report direct and selective methane photocatalytic oxidation at ambient ...
Lire la suite >Chemical utilization of vast fossil and renewable feedstocks of methane remains one of the most important challenges of modern chemistry. Herein, we report direct and selective methane photocatalytic oxidation at ambient conditions into carbon monoxide, which is an important chemical intermediate and a platform molecule. The composite catalysts on the basis of zinc, tungstophosphoric acid and titania exhibit exceptional performance in this reaction, high carbon monoxide selectivity and quantum efficiency of 7.1% at 362 nm. In-situ Fourier transform infrared and X-ray photoelectron spectroscopy suggest that the catalytic performance can be attributed to zinc species highly dispersed on tungstophosphoric acid /titania, which undergo reduction and oxidation cycles during the reaction according to the Mars-van Krevelen sequence. The reaction proceeds via intermediate formation of surface methyl carbonates.Lire moins >
Lire la suite >Chemical utilization of vast fossil and renewable feedstocks of methane remains one of the most important challenges of modern chemistry. Herein, we report direct and selective methane photocatalytic oxidation at ambient conditions into carbon monoxide, which is an important chemical intermediate and a platform molecule. The composite catalysts on the basis of zinc, tungstophosphoric acid and titania exhibit exceptional performance in this reaction, high carbon monoxide selectivity and quantum efficiency of 7.1% at 362 nm. In-situ Fourier transform infrared and X-ray photoelectron spectroscopy suggest that the catalytic performance can be attributed to zinc species highly dispersed on tungstophosphoric acid /titania, which undergo reduction and oxidation cycles during the reaction according to the Mars-van Krevelen sequence. The reaction proceeds via intermediate formation of surface methyl carbonates.Lire moins >
Langue :
Anglais
Audience :
Internationale
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)
Valorisation des alcanes et de la biomasse (VAALBIO)
Photodynamique, confinement, solvatation (PCS)
Valorisation des alcanes et de la biomasse (VAALBIO)
Photodynamique, confinement, solvatation (PCS)
Date de dépôt :
2022-03-02T07:13:14Z