Title :

Thermocatalysis enables photocatalytic oxidation of methane to formic acid at room temperature beyond the selectivity limits

Author(s) :

Hu, Di [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Addad, Ahmed [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Ben Tayeb Meziane, Karima [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Ordomsky, Vitaly [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Khodakov, Andrei [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Journal title :

Cell Reports Physical Science

Abbreviated title :

Cell Rep. Phys. Sci.

Volume number :

4

Pages :

-

Publication date :

2023-05-07

ISSN :

2666-3864

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

Direct conversion of methane into fuels and chemicals remains a major challenge in modern science. Formic acid is one of the most promising platform molecules. Photocatalysis proposes an attractive route for methane partial ...
Show more >Direct conversion of methane into fuels and chemicals remains a major challenge in modern science. Formic acid is one of the most promising platform molecules. Photocatalysis proposes an attractive route for methane partial oxidation under mild conditions. The radical mechanism of methane photocatalytic oxidation restricts the selectivity to target products. In this article, we propose a strategy to break conventional limitations of methane photocatalytic oxidation by adding a thermocatalyst and conducting the process in a one-pot reactor. In this strategy, the methane selective conversion into formic acid proceeds first over cesium salt of phosphotungstic acid on titania, which photocatalytically oxidizes methane into a mixture of C1 oxygenates. These oxygenates are then selectively converted into formic acid over a heterogeneous alumina-supported ruthenium catalyst. All reactions occur at room temperature in the same reactor. A selectivity to formic acid of 85% and a productivity of 5 mmol g−1photocatalyst are achieved.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)
Propriétés magnéto structurales des matériaux (PMSM)

Submission date :

2023-06-05T08:18:11Z
2023-06-27T13:06:00Z