The nature of ruthenium sulfide clusters encaged in a Y zeolite

Moraweck, B; Bergeret, G; Cattenot, M; Kougionas, V; Geantet, C; Portefaix, J-L; Zotin, JL; Breysse, M

dc.contributor.author	Moraweck, B	en
dc.contributor.author	Bergeret, G	en
dc.contributor.author	Cattenot, M	en
dc.contributor.author	Kougionas, V	en
dc.contributor.author	Geantet, C	en
dc.contributor.author	Portefaix, J-L	en
dc.contributor.author	Zotin, JL	en
dc.contributor.author	Breysse, M	en
dc.date.accessioned	2014-03-01T01:46:15Z
dc.date.available	2014-03-01T01:46:15Z
dc.date.issued	1997	en
dc.identifier.issn	00219517	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/24876
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0002413359&partnerID=40&md5=90238a7a72b26517e6da124aee70c1df	en
dc.title	The nature of ruthenium sulfide clusters encaged in a Y zeolite	en
heal.type	journalArticle	en
heal.publicationDate	1997	en
heal.abstract	Catalysts of ruthenium sulfide supported in a dealuminated KY zeolite were prepared by ion exchange and subsequent sulfidation using several atmospheres containing sulfur. They were characterized by means of HREM, EDX, TPR, and EXAFS. The activity for the tetralin hydrogenation, carried out in presence of large amounts of H2S (1.85%), was very high and roughly 300 times the activity (expressed per metal atom) of an industrial NiMo/Al2O3 hydrotreating catalyst. A simple modeling of the results obtained by the physicochemical techniques suggests that the active phase consists of clusters of less than 50 ruthenium atoms of a ruthenium sulfide-like phase with very small domains of ruthenium metal. © 1997 Academic Press, Inc.	en
heal.journalName	Journal of Catalysis	en
dc.identifier.volume	165	en
dc.identifier.issue	1	en
dc.identifier.spage	45	en
dc.identifier.epage	56	en