Results
Title

Structural changes in air aged and poisoned diesel catalysts.

Authors

Kanerva, T.; Kröger, V.; Rahkamaa-Tolonen, K.; Vippola, M.; Lepistö, T.; Keiski, R.

Abstract

Laboratory-scale ageing and poisoning procedures were performed on selected diesel catalysts. The results showed that phosphorus poisoning together with high temperature ageing has a strong effect on the catalytic activity and microstructure of platinum containing catalysts. Phosphorus poisoning contaminated the catalysts resulting in phosphate formation, e.g. CePO4 and AlPO4. Poisoning and air ageing increased platinum particle-size and washcoat grain-size.

Subjects

CATALYST poisoning; PHOSPHORUS; PHOSPHATES; PLATINUM; CATALYSIS

Publication

Topics in Catalysis, 2007, Vol 45, Issue 1-4, p137

ISSN

1022-5528

Publication type

Academic Journal

DOI

10.1007/s11244-007-0254-3