Titre :

Nickel exsolution-driven phase transformation from an n=2 to an n=1 ruddlesden-popper manganite for methane steam reforming reaction in sofc conditions

Auteur(s) :

Vecino-Mantilla, Sebastian [Auteur]
Universidad Industrial de Santander [Bucaramanga] [UIS]
Gauthier-Maradei, Paola [Auteur]
Universidad Industrial de Santander [Bucaramanga] [UIS]
Huvé, Marielle [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Serra, Manuel Jose [Auteur]
Universitat Politècnica de València = Universitad Politecnica de Valencia = Polytechnic University of Valencia [UPV]
Roussel, Pascal [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Gauthier, Gilles H. [Auteur]
Universidad Industrial de Santander [Bucaramanga] [UIS]

Titre de la revue :

ChemCatChem

Date de publication :

2019-08-22

ISSN :

1867-3880

Mot(s)-clé(s) :

Ruddlesden-Popper
Exsolution
Fuel cells
Nickel
Steam reforming

Discipline(s) HAL :

Chimie/Chimie inorganique

Résumé en anglais : [en]

An original way to perform the exsolution of Ni nanoparticles on a ceramic support was explored for the development of methane steam reforming catalyst in SOFC anode conditions. The n=2 Ruddlesden-Popper (RP) phase ...
Lire la suite >An original way to perform the exsolution of Ni nanoparticles on a ceramic support was explored for the development of methane steam reforming catalyst in SOFC anode conditions. The n=2 Ruddlesden-Popper (RP) phase La1.5Sr1.5Mn1.5Ni0.5O7±δ has been synthesized by the Pechini method and subsequently reduced with an H2-N2 mixture at different temperatures and reducing times to induce the formation of two phases: LaSrMnO4 (n=1 RP) decorated with metallic Ni nanoparticles. Preliminary measurements of catalytic behavior for the steam reforming have been carried out in a reduction-reaction process with a mixture of 82 mol %CH4, 18 mol %N2 and low steam to carbon ratio (S/C=0.15). The catalyst exhibits a selectivity for CO production (0.97), 14.60 mol % CH4 conversion and around 24.19 mol % H2 production. Such catalytic behavior was maintained for more than 4 h, with a constant rate of hydrogen production and CH4 conversion rate.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

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 :

Matériaux inorganiques, structures, systèmes et propriétés (MISSP)

Date de dépôt :

2022-03-02T07:14:03Z
2023-02-07T10:42:49Z