The Impact of Sulphur, Phosphorus and their Co-effect on Pt/SiO2–ZrO2 Diesel Oxidation Catalysts

The Impact of Sulphur, Phosphorus and their Co-effect on Pt/SiO2–ZrO2 Diesel Oxidation Catalysts

The effect of sulphur and phosphorus on a Pt/SiO 2 –ZrO 2 catalyst was studied. The laboratory accelerated sulphur (SW) or phosphorus (PW), and their co-exposure (PSW) treatments were done in gas phase for 5 h at 400 °C. The fresh and treated catalysts were characterized by XPS, FESEM-EDS, TEM-EDS,...

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Veröffentlicht in:Topics in catalysis 2017-03, Vol.60 (3-5), p.307-311
Hauptverfasser: Väliheikki, A., Kolli, T., Honkanen, M., Heikkinen, O., Kärkkäinen, M., Kallinen, K., Huuhtanen, M., Vippola, M., Lahtinen, J., Keiski, R. L.
Format: Artikel
Sprache:eng
Schlagworte:
Catalysis
Catalysts
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Exhaust gases
Industrial Chemistry/Chemical Engineering
Original Paper
Oxidation
Pharmacy
Phosphorus
Physical Chemistry
Silicon dioxide
Sulfur
Vapor phases
Zirconium dioxide
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Zusammenfassung:The effect of sulphur and phosphorus on a Pt/SiO 2 –ZrO 2 catalyst was studied. The laboratory accelerated sulphur (SW) or phosphorus (PW), and their co-exposure (PSW) treatments were done in gas phase for 5 h at 400 °C. The fresh and treated catalysts were characterized by XPS, FESEM-EDS, TEM-EDS, BET and BJH. The catalyst activity was tested in lean diesel exhaust gas conditions by using a gas FTIR. The value of the light-off temperature of CO and C 3 H 6 over the studied catalysts was as follows: fresh ~ SW 
ISSN:1022-5528
1572-9028
DOI:10.1007/s11244-016-0616-9