Title :

Engineering pore morphology using silica template route over mesoporous cobalt oxide and its implications in atmospheric pressure carbon dioxide hydrogenation to olefins

Author(s) :

Gupta, Sharad [Auteur]
Academy of Scientific and Innovative Research [Ghaziabad, India] [AcSIR]
Ciotonea, Carmen [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
royer, sebastien [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Dacquin, Jean-Philippe [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Vinod, Chathakudath P. [Auteur]
Academy of Scientific and Innovative Research [Ghaziabad, India] [AcSIR]

Journal title :

Applied Materials Today

Abbreviated title :

Appl. Mater. Today

Volume number :

19

Publication date :

2020-06-01

ISSN :

2352-9407

Keyword(s) :

Olefin fraction
CO2 hydrogenation
Pore morphology
Silica hard template
Mesoporous CO3O4

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

Highly ordered mesoporous cobalt oxides (denoted as m-Co-KIT-6 and m-Co-SBA-15) with three dimensional and two dimensional pore morphology respectively have been synthesized using 3D KIT-6, and 2D SBA-15 as silica template ...
Show more >Highly ordered mesoporous cobalt oxides (denoted as m-Co-KIT-6 and m-Co-SBA-15) with three dimensional and two dimensional pore morphology respectively have been synthesized using 3D KIT-6, and 2D SBA-15 as silica template via nanocasting route. CO2 hydrogenation activity was evaluated for these mesoporous materials under atmospheric pressure conditions. In comparison to nanoparticles of cobalt oxide (Co3O4-nano), mesoporous catalysts showed excellent activity for CO2 hydrogenation due to their higher number of exposed active sites and lower mass diffusion limitations. The ordered mesoporous structure of Co3O4 catalysts favored the chain growth of carbon atoms for the production of C2+ hydrocarbons while Co3O4 nanoparticles showed strong selectivity toward CH4. High selectivity for C2+ (∼ 25%) was obtained for both m-Co-KIT-6 and m-Co-SBA-15 catalysts at 320 °C. In addition, the 3D pore structure of m-Co-KIT-6 catalyst exclusively formed more olefins (54.9%) fraction.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

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

Research team(s) :

Matériaux pour la catalyse (MATCAT)

Submission date :

2022-03-02T07:14:48Z
2024-01-15T16:31:07Z