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Title: Sulphur tolerant diesel oxidation catalysts by noble metal alloying
Authors : Franken, Tanja
Vieweger, Elisabeth
Klimera, Andreas
Hug, Michael
Heel, Andre
Published in : Catalysis Communications
Volume(Issue) : 219
Issue : 105732
Publisher / Ed. Institution : Elsevier
Issue Date: 2019
License (according to publishing contract) : CC BY-NC-ND 4.0: Attribution - Non commercial - No derivatives 4.0 International
Type of review: Peer review (publication)
Language : English
Subjects : Sulphur tolerance; NO oxidation; Mn-Pt alloy; deNOx; Manganese; Platinum
Subject (DDC) : 620: Engineering
Abstract: A series of Mn-alloyed Pt supported catalysts were investigated for the NO oxidation reaction applied in diesel oxidation catalysts under sulphur-containing conditions. The observed NO oxidation conversion correlated to the Pt amount in the catalyst under sulphur-free conditions. In the presence of SO2 in the feed, the Pt/Al2O3 catalyst heavily deactivated resulting in the lowest performance compared to Mn-alloyed Pt catalysts. Already small amounts of Mn improved the SO2-resistance significantly. Whilst pure Pt/Al2O3 catalyst deactivates fully within the first 30 min under NO oxidation conditions including 300 ppm SO2, an alloy with a Mn to Pt ratio of 1:1 performed with a remarkable high catalytic stability for the NO oxidation over at least 70 h under continuous testing conditions.
Departement: School of Engineering
Organisational Unit: Institute of Materials and Process Engineering (IMPE)
Publication type: Article in scientific journal
DOI : 10.21256/zhaw-3227
ISSN: 1566-7367
Restricted until : 2021-07-01
Published as part of the ZHAW project : NANODOC: Entwicklung eines neuartigen, nanostrukturierten Diesel-Oxidationskatalysators (DOC)
Appears in Collections:Publikationen School of Engineering

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