Thermal stability of succinate and acetate on a Cu(1 1 0) surface

S. Yagyu, M. Yoshitake, T. Chikyow

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We made a helium atom beam scattering (HAS) apparatus to study the thermal dynamics of adsorbed organic molecules on a surface. The apparatus had an angular resolution of 6° and energy resolutions of 20%, with an incident energy of E i = 63 meV. We measured the thermal stability of acetic acid (CH 3 -COOH) and succinic acid (HOOC-CH 2 -CH 2 -COOH) structures on a Cu(1 1 0) using the DW-plot technique (the temperature variation of intensity of the He beam specularly reflected from the surface). We found that the desorption temperatures derived from DW-plots are 540 K for low-coverage acetate, 550 K for c(2 × 2) acetate and 590 K at succinate. The desorption temperature of succinate is higher than acetate, which is interpreted by a larger number of carboxylates in one molecule.

Original languageEnglish
Pages (from-to)183-188
Number of pages6
JournalApplied Surface Science
Volume241
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - 2005 Feb 28
Externally publishedYes

Keywords

  • Carboxylic acid
  • Copper
  • Helium atomic beam scattering
  • Temperature programmed desorption

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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