The activity of cevo4-based catalysts for ammonia-scr: impact of surface cerium enrichment

Peyrovi, Parnian; Gillot, Sylvain; Dacquin, Jean-Philippe; Granger, Pascal; Dujardin, Christophe; Gillot, Sylvain

Document type :

Article dans une revue scientifique: Article original

DOI :

10.1007/s10562-020-03363-0

Permalink :

http://hdl.handle.net/20.500.12210/60773

Title :

The activity of cevo4-based catalysts for ammonia-scr: impact of surface cerium enrichment

Author(s) :

Peyrovi, Parnian [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Gillot, Sylvain [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Dacquin, Jean-Philippe [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Granger, Pascal [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Dujardin, Christophe [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Gillot, Sylvain [Auteur]

Journal title :

Catalysis letters

Abbreviated title :

Catal. Lett.

Volume number :

151

Pages :

1003–1012

Publication date :

2020-09-05

ISSN :

1011-372X

English keyword(s) :

CeVO4
Ammonia-SCR
Nitrogen oxides
Nitrous oxide
Vanadium

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

The ammonia-SCR catalytic activity of unsupported CeVO4 with an excess of CeO2 was investigated in standard and fast-SCR conditions. Solids were obtained from a hydrothermal synthesis route under a mild condition and then ...
Show more >The ammonia-SCR catalytic activity of unsupported CeVO4 with an excess of CeO2 was investigated in standard and fast-SCR conditions. Solids were obtained from a hydrothermal synthesis route under a mild condition and then stabilized after aging in a wet atmosphere at 600 and 850 °C. Particular attention was paid to the role of excess CeO2 and the consequences of hydrothermal aging on physical–chemical properties and catalytic activity. The XRD patterns put into evidence the formation of the zircon-type structure of CeVO4 in agreement with a segregation of cubic face-centered structure of ceria (CeO2). Along with adding an excess of CeO2, high specific surface area (102 m2/g) for the 11wt% CeO2/CeVO4 solid was obtained. The presence of CeO2 nanoparticles in addition to CeVO4 nanoparticles have limited the decrease in the specific surface area after aging at 600 and 850 °C. The catalyst with 11wt% CeO2/CeVO4 exhibited the best catalytic performances in standard and fast SCR conditions after thermal aging at 600 °C.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)
Remédiation et matériaux catalytiques (REMCAT)

Submission date :

2022-03-02T07:14:56Z
2023-12-22T10:48:59Z

Files

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Version	Link	Modification date
2	20.500.12210/60773*	2023-12-22T10:45:11Z
1	20.500.12210/60773.1	2022-03-02T07:14:56Z

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