The chemical nature of SO<sub>2</sub> poisoning of Cu-CHA-based SCR catalysts for NOx removal in diesel exhausts-Reference-Cited by-同舟云学术

The chemical nature of SO₂ poisoning of Cu-CHA-based SCR catalysts for NOx removal in diesel exhausts

Published:2024 Issue: Volume: Page:
ISSN:2044-4753
Container-title:Catalysis Science & Technology
language:en
Short-container-title:Catal. Sci. Technol.

Author:

Molokova Anastasia Yu.¹^ORCID,Salusso Davide¹^ORCID,Borfecchia Elisa²^ORCID,Wen Fei³^ORCID,Magliocco Stefano²^ORCID,Bordiga Silvia²^ORCID,Janssens Ton V. W.⁴^ORCID,Lomachenko Kirill A.¹^ORCID,Berlier Gloria²^ORCID

Affiliation:

1. European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble Cedex 9, France

2. Department of Chemistry and NIS Centre, University of Turin, via Giuria 7, 10125 Turin, Italy

3. Umicore AG & Co, Rodenbacher Chaussee 4, 63457 Hanau, Germany

4. Umicore Denmark ApS, Kogle Allé 1, 2970 Hørsholm, Denmark

Abstract

Unveiling how the chemistry of the reaction of [Cu2II(NH3)4O2]2+ with NO changes upon exposure to SO2. The important stage of the NH3-SCR cycle in the Cu-CHA deNOx catalyst is investigated with temperature-programmed reaction with NO, XAS and DRIFTS.

Funder

Ministero dell’Istruzione, dell’Università e della Ricerca

H2020 Marie Skłodowska-Curie Actions

Publisher

Royal Society of Chemistry (RSC)

Link

http://pubs.rsc.org/en/content/articlepdf/2024/CY/D4CY00792A

Reference39 articles.

1. Perspective on SCR NOx control for diesel vehicles

2. Automotive NOx abatement using zeolite-based technologies

3. Reversible and irreversible deactivation of Cu-CHA NH3-SCRcatalysts by SO2 and SO3

4. Impact of SO2-poisoning over the lifetime of a Cu-CHA catalyst for NH3-SCR

5. A Complete Multisite Reaction Mechanism for Low-Temperature NH3-SCR over Cu-CHA