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References (6)
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P. Lucena, J. Laserna (2001)
Three-dimensional distribution analysis of platinum, palladium and rhodium in auto catalytic converters using imaging-mode laser-induced breakdown spectrometrySpectrochimica Acta Part B: Atomic Spectroscopy, 56
- Publisher
- Royal Society of Chemistry
- Copyright
- This journal is © The Royal Society of Chemistry
- ISSN
- 0267-9477
- eISSN
- 1364-5544
- DOI
- 10.1039/b200975g
- Publisher site
- See Article on Publisher Site
Abstract
Laser-induced plasma spectrometry was used as a procedure for the comparative study of diesel-engine exhaust converters. Three-dimensional images were obtained and compared from “0 km” and “80 000 km” converters to generate semi-quantitative chemical images of the Pt load and of the poisoning elements P and Zn. The data revealed that a significant progressive depletion of Pt occurred from the converter region closest to the engine to the outer part of the catalyst. Deactivant elements were deposited along the full catalyst on usage for 80 000 km.
Journal
Journal of Analytical Atomic Spectroscopy – Royal Society of Chemistry
Published: Mar 20, 2002