Titre :

Nickel-zeolite composite catalysts with metal nanoparticles selectively encapsulated in the zeolite micropores

Auteur(s) :

Peron, Deizi-Vanessa [Auteur]
Unité de Catalyse et de Chimie du Solide (UCCS) - UMR 8181
Zholobenko, Vladimir L. [Auteur]
De La Rocha, Melissa Rodrigues [Auteur]
De Souza, Michele Oberson [Auteur]
Feris, Liliana A. [Auteur]
Marcilio, Nilson R. [Auteur]
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

Titre de la revue :

Journal of Materials Science

Nom court de la revue :

J. Mater. Sci.

Numéro :

54

Pagination :

5399-5411

Date de publication :

2019-04

ISSN :

0022-2461

Discipline(s) HAL :

Chimie/Catalyse

Résumé en anglais : [en]

Metal-zeolite composite catalysts have found numerous applications in adsorption, gas separation, petroleum refining and chemical industry. The key issue in the design of these catalysts is localization of the metal within ...
Lire la suite >Metal-zeolite composite catalysts have found numerous applications in adsorption, gas separation, petroleum refining and chemical industry. The key issue in the design of these catalysts is localization of the metal within the zeolite structure. This paper focuses on a new approach to the synthesis of nickel–zeolite composite catalysts selectively containing metal nanoparticles inside the zeolite pores. In the catalysts prepared by conventional impregnation, metal particles from the external surface of the zeolites were selectively removed by extraction with bulky polymer molecules of poly-4-styrenesulfonic acid. The method is particularly suitable for the ZSM-5 zeolite with relatively narrow micropores. The nickel zeolite catalysts were tested in hydrogenation of toluene and 1,3,5-tri-isopropyl benzene (TIPB). The removal of nickel particles from the zeolite external surface leads to a considerable decrease in the hydrogenation rate of the bulky TIPB molecules, while toluene hydrogenation rate was affected to a much lesser extent and was almost proportional to the nickel content. The proposed methodology can be extended to other types of microporous catalysts.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

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

Équipe(s) de recherche :

Catalyse pour l’énergie et la synthèse de molécules plateforme (CEMOP)

Date de dépôt :

2022-03-02T07:13:16Z
2024-01-16T10:27:30Z