A Novel Way of Sampling Particles Containing Platinum Group Elements from Automobile Catalysts

Paraskevas, MS; Papoutsi, K; Ochsenkuhn-Petropoulou, M

dc.contributor.author	Paraskevas, MS	en
dc.contributor.author	Papoutsi, K	en
dc.contributor.author	Ochsenkuhn-Petropoulou, M	en
dc.date.accessioned	2014-03-01T02:07:23Z
dc.date.available	2014-03-01T02:07:23Z
dc.date.issued	2012	en
dc.identifier.issn	00032719	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29557
dc.subject	Aerosol particles	en
dc.subject	Automobile catalyst	en
dc.subject	Palladium	en
dc.subject	Platinum	en
dc.subject	Rhodium	en
dc.title	A Novel Way of Sampling Particles Containing Platinum Group Elements from Automobile Catalysts	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/00032719.2011.649459	en
heal.identifier.secondary	http://dx.doi.org/10.1080/00032719.2011.649459	en
heal.publicationDate	2012	en
heal.abstract	A new sampling system was developed in order to be applied directly at the exhaust pipe of vehicles combined with an exhaust gas analyzer during the standard New European Driving Cycle (NEDC). In that way a quantitative sampling of Pt, Pd, and Rh (Platinum Group Elements, PGEs) in particle form on filters and gas monitoring could be achieved simultaneously, applying the sampling system on a variety of vehicles of different age and engine capacity. The samples were examined by SEM-EDX for morphological and qualitative analysis of the particles. By using an appropriate digestion procedure and the analytical techniques of ICP-MS and GFAAS, concentrations were found in the range of 0.35-87 ng/km for Pt, 3.3-437 ng/km for Pd, and 0.9-72 ng/km for Rh. Furthermore the investigation showed that fresh catalysts as well as engines with larger capacity emitted higher amounts of PGEs in comparison to older catalysts and smaller capacity engines. According to the results of this research the palladium emissions were dominant in comparison to the platinum ones. This way of sampling might prove advantageous in testing new technology catalysts through their PGEs emission. © 2012 Copyright Taylor and Francis Group, LLC.	en
heal.journalName	Analytical Letters	en
dc.identifier.doi	10.1080/00032719.2011.649459	en
dc.identifier.volume	45	en
dc.identifier.issue	5-6	en
dc.identifier.spage	539	en
dc.identifier.epage	550	en