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Catalytic and Electrochemical Properties of Ag Infiltrated Perovskite Coatings for Propene Deep Oxidation

Authors :
Daniel Marinha
A. Caravaca
Jean-Paul Viricelle
I. Kalaitzidou
Laurence Burel
Philippe Vernoux
Benjamin Rotonnelli
Thai Giang Truong
Helena Kaper
Mathilde Rieu
laboratoire de synthèse et fonctionnalisation des céramiques (LSFC)
SAINT-GOBAIN-Centre National de la Recherche Scientifique (CNRS)
Institut de recherches sur la catalyse et l'environnement de Lyon (IRCELYON)
Université Claude Bernard Lyon 1 (UCBL)
Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Département Procédés de Transformations des Solides et Instrumentation (PTSI-ENSMSE)
Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE)
École des Mines de Saint-Étienne (Mines Saint-Étienne MSE)
Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE)
Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)
Laboratoire Georges Friedel (LGF-ENSMSE)
Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)
Saint-Gobain CREE/ UMR 3080 CNRS/ Laboratoire de Synthèse et Fonctionnalisation des Céramiques
Université Claude Bernard Lyon 1 - CNRS - IRCELYON
Source :
Catalysts, Vol 10, Iss 729, p 729 (2020), Catalysts, Catalysts, MDPI, 2020, 10 (7), pp.729. ⟨10.3390/catal10070729⟩, Volume 10, Issue 7
Publication Year :
2020
Publisher :
MDPI AG, 2020.

Abstract

This study reports the catalytic properties of Ag nanoparticles dispersed on mixed ionic and electronic conducting layers of LSCF (La0.6Sr0.4Co0.2Fe0.8O3) for propene combustion. A commercial and a synthesized LSCF powder were deposited by screen-printing or spin-coating on dense yttria-stabilized zirconia (YSZ) substrates, an oxygen ion conductor. Equal loadings (50 &micro<br />g) of Ag nanoparticles were dispersed via drop-casting on the LSCF layers. Electrochemical and catalytic properties have been investigated up to 300 &deg<br />C with and without Ag in a propene/oxygen feed. The Ag nanoparticles do not influence the electrochemical reduction of oxygen, suggesting that the rate-determining step is the charge transfer at the triple phase boundaries YSZ/LSCF/gas. The anodic electrochemical performances correlate well with the catalytic activity for propene oxidation. This suggests that the diffusion of promoting oxygen ions from YSZ via LSCF grains can take place toward Ag nanoparticles and promote their catalytic activity. The best specific catalytic activity, achieved for a LSCF catalytic layer prepared by screen-printing from the commercial powder, is 800 times higher than that of a pure Ag screen-printed film.

Details

Language :
English
ISSN :
20734344
Volume :
10
Issue :
729
Database :
OpenAIRE
Journal :
Catalysts
Accession number :
edsair.doi.dedup.....a6cf30c77fce2a0dd821d3335e7a10e4
Full Text :
https://doi.org/10.3390/catal10070729⟩