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Article

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

1
Laboratoire de Synthèse et Fonctionnalisation des Céramiques, UMR 3080 CNRS/Saint-Gobain CREE, Saint-Gobain Research Provence, 550 avenue Alphonse Jauffret, 84300 Cavaillon, France
2
Univ Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, F-69626 Villeurbanne, France
3
Centre SPIN, Mines Saint-Etienne Univ Lyon, CNRS, UMR 5307, 42023 Saint-Etienne, France
*
Authors to whom correspondence should be addressed.
Catalysts 2020, 10(7), 729; https://doi.org/10.3390/catal10070729
Received: 2 June 2020 / Revised: 24 June 2020 / Accepted: 25 June 2020 / Published: 1 July 2020
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 µg) of Ag nanoparticles were dispersed via drop-casting on the LSCF layers. Electrochemical and catalytic properties have been investigated up to 300 °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. View Full-Text
Keywords: self-sustained electrochemical promotion; VOC abatement; silver catalyst; propene oxidation; mixed ionic electronic conductor self-sustained electrochemical promotion; VOC abatement; silver catalyst; propene oxidation; mixed ionic electronic conductor
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MDPI and ACS Style

Truong, T.G.; Rotonnelli, B.; Rieu, M.; Viricelle, J.-P.; Kalaitzidou, I.; Marinha, D.; Burel, L.; Caravaca, A.; Vernoux, P.; Kaper, H. Catalytic and Electrochemical Properties of Ag Infiltrated Perovskite Coatings for Propene Deep Oxidation. Catalysts 2020, 10, 729. https://doi.org/10.3390/catal10070729

AMA Style

Truong TG, Rotonnelli B, Rieu M, Viricelle J-P, Kalaitzidou I, Marinha D, Burel L, Caravaca A, Vernoux P, Kaper H. Catalytic and Electrochemical Properties of Ag Infiltrated Perovskite Coatings for Propene Deep Oxidation. Catalysts. 2020; 10(7):729. https://doi.org/10.3390/catal10070729

Chicago/Turabian Style

Truong, Thai G.; Rotonnelli, Benjamin; Rieu, Mathilde; Viricelle, Jean-Paul; Kalaitzidou, Ioanna; Marinha, Daniel; Burel, Laurence; Caravaca, Angel; Vernoux, Philippe; Kaper, Helena. 2020. "Catalytic and Electrochemical Properties of Ag Infiltrated Perovskite Coatings for Propene Deep Oxidation" Catalysts 10, no. 7: 729. https://doi.org/10.3390/catal10070729

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