Selective partial hydrogenation of 1,3-butadiene to butene on Pd(110): Specification of reactant adsorption states and product stability

Satoshi Katano, Hiroyuki S. Kato, Maki Kawai, Kazunari Domen

Research output: Contribution to journalLetterpeer-review

23 Citations (Scopus)

Abstract

TPD, scanning tunneling microscopy, and HREELS were used to study the selective partial hydrogenation of C4H6 to C4H8 on hydrogen-precovered Pd(110). The effective partial hydrogenation of C4H6 on the Pd(110) surface was realized due to the high hydrogenation activity of weakly π-bonded C4H6 combined with the instability of C4H8 produced at the reaction temperature. C4H6 hydrogenation did not take place in the sparse domains of < 0.25 ML, in which C4H6 was in a strongly π-bounded state. C4H6 formed dense domains and turned into a weakly π-bonded state in these dense domains on increasing C4H6 coverage. Only the weakly π-bonded C4H6 was hydrogenated to C4H8 at about 200 K. In contrast, the produced C4H8 was not stabilized on the surface above 200 K because C4H8 preferred to desorb at the temperature it was produced or was dehydrogenated to C4H6 when any part of the C4H8 remained on the Pd surface.

Original languageEnglish
Pages (from-to)3671-3674
Number of pages4
JournalJournal of Physical Chemistry B
Volume107
Issue number16
Publication statusPublished - 2003 Apr 24
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Selective partial hydrogenation of 1,3-butadiene to butene on Pd(110): Specification of reactant adsorption states and product stability'. Together they form a unique fingerprint.

Cite this