Partial hydrogenation of 1,3-butadiene adsorbed on Pd(110): The activation of reactant by the template effect

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

Research output: Contribution to journalArticlepeer-review

Abstract

Partial hydrogenation of 1,3-butadiene (C4H6) to butene (C4H8) on hydrogen precovered Pd (110) has been investigated using temperature-programmed desorption (TPD), scanning tunneling microscopy (STM) and high resolution electron energy loss spectroscopy (HREELS). Below room temperature, C4H6 was molecularly chemisorbed on a hydrogen precovered Pd(110) surface, and was in n-bonded chemisorption states. The hydrogenation of C4H6 did not occur in the sparse domains less than 0.25 ML (c(4×2)). With increasing the C 4H6 coverage, C4H6 formed dense domains and the π-bond was weakened. Only the weakly π-bonded C 4H8 was hydrogenated to C4H8 at about 200 K. We propose that c(4 × 2) structure of 1,3-butadiene acts as the template for the activation of hydrogenation.

Original languageEnglish
Pages (from-to)203-206
Number of pages4
JournalShinku/Journal of the Vacuum Society of Japan
Volume46
Issue number3
DOIs
Publication statusPublished - 2003
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

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