Structures, surface state and catalytic properties of a model pt catalyst

J. Find, Z. Paál, H. Sauer, R. Schlögl, U. Wild, A. Wootsch

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Pt black was contacted with n-hexane (nH) and nH+H 2 both in a catalytic reactor and in an ESCA preparation chamber at 603 K. Both treatments brought about carbon accumulation up to ∼40%. UPS showed a C overlayer in the former case. O 2 regeneration removed most C but subsequent H 2 treatment increased surface C again. This may have been concomitant with an anisotropic recrystallization enhancing higher XRD reflections. The conversion of n-hexane (nH) during exposure as well as the residual activity and selectivity in nH test runs showed a stronger deactivation in the former case with enhanced hexene formation and a slower self-reactivation in a hydrogen-richer reaction mixture.

Original languageEnglish
Pages (from-to)2291-2296
Number of pages6
JournalStudies in Surface Science and Catalysis
Volume130 C
Publication statusPublished - 2000

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hexenes
Surface states
Hexane
surface treatment
regeneration
deactivation
chambers
selectivity
reactors
catalysts
preparation
Catalysts
carbon
hydrogen
Surface treatment
Hydrogen
Carbon
n-hexane

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Catalysis

Cite this

Structures, surface state and catalytic properties of a model pt catalyst. / Find, J.; Paál, Z.; Sauer, H.; Schlögl, R.; Wild, U.; Wootsch, A.

In: Studies in Surface Science and Catalysis, Vol. 130 C, 2000, p. 2291-2296.

Research output: Contribution to journalArticle

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AU - Wootsch, A.

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