Interaction of NO with Pt-Rh alloy single crystal surfaces

F.C.M.J.M. van Delft, K. Siera, R.J. Vreeburg, M.J. Koster van Groos, Dick van Langeveld, B.E. Nieuwenhuys

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Abstract

The clean surfaces of Pt0.25-Rh0.75 alloy single crystals showed Pt surface enrichment that increased with increasing equilibration temp. The activity of the alloy for NO dissocn. is dependent on both the surface structure and the surface compn. (as varied by a proper choice of the equilibration temp.). The NO dissocn. activity was in the following order: Rh-rich (410) ³ Rh-rich (210) ³ Pt-rich (410) > Rh-rich (321) > Rh-rich (111) > Pt-rich (210) > Pt-rich (321) > Pt-rich (111)
Original languageEnglish
Title of host publicationCatalysis: Theory to Practice : Proceedings 9th International Congress on Catalysis. Volume 3: Characterization and Metal Catalysts
EditorsM.J. Philips, M. Ternan
Place of PublicationOttawa
PublisherChemical Institute of Canada
Pages1114-1121
Publication statusPublished - 1988
Event9th International Congress on Catalysis (9th ICC), June 27-July 1, 1988, Calgary, Canada - Calgary, Canada
Duration: 27 Jun 19881 Jul 1988

Conference

Conference9th International Congress on Catalysis (9th ICC), June 27-July 1, 1988, Calgary, Canada
Abbreviated title9th ICC
CountryCanada
CityCalgary
Period27/06/881/07/88

Cite this

van Delft, F. C. M. J. M., Siera, K., Vreeburg, R. J., Koster van Groos, M. J., van Langeveld, D., & Nieuwenhuys, B. E. (1988). Interaction of NO with Pt-Rh alloy single crystal surfaces. In M. J. Philips, & M. Ternan (Eds.), Catalysis: Theory to Practice : Proceedings 9th International Congress on Catalysis. Volume 3: Characterization and Metal Catalysts (pp. 1114-1121). [143-C2] Ottawa: Chemical Institute of Canada.