Sulphur tolerant diesel oxidation catalysts by noble metal alloying

Franken T, Vieweger E, Klimera A, Hug M, Heel A (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Catalysis Communications Elsevier

Book Volume: 129

Article Number: 105732

DOI: 10.1016/j.catcom.2019.105732

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.

Authors with CRIS profile

Tanja Franken

Involved external institutions

Zürcher Hochschule für Angewandte Wissenschaften (ZHAW) CH Switzerland (CH) Hug Engineering AG CH Switzerland (CH)

How to cite

APA:

Franken, T., Vieweger, E., Klimera, A., Hug, M., & Heel, A. (2019). Sulphur tolerant diesel oxidation catalysts by noble metal alloying. Catalysis Communications, 129. https://dx.doi.org/10.1016/j.catcom.2019.105732

MLA:

Franken, Tanja, et al. "Sulphur tolerant diesel oxidation catalysts by noble metal alloying." Catalysis Communications 129 (2019).

BibTeX: Download