Exchange reaction of formate with gas-phase acetic acid on Ni (110)

Akira Yamakata, Jun Kubota, Junko N. Kondo, Chiaki Hirose, Kazunari Domen, Fumitaka Wakabayashi, Kenzi Tamaru

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

The exchange reaction of formate with gas-phase acetic acid on Ni(110) was studied by time resolved infrared reflection absorption spectroscopy. It was found that the preadsorbed formate was replaced in the acetate by the introduction of acetic acid on formate-full covered Ni(110), originated from the post-exposed acetic acid. Acetate was also replaced in formate by the introduction of formic acid on acetate-full covered Ni(110). These exchange reactions took place from 240 to 300 K, where decomposition of neither formate nor acetate was observed. Thus, it was confirmed that the preadsorbed formate or acetate was desorbed as formic or acetic acid accompanied by the transfer of hydrogen atoms from post-introduced acetic or formic acid. The activation energy of the exchange reaction of formate with post-introduced acetic acid was estimated to be 17 ± 2 kJ mol-1. The small activation energy of the exchange reaction is discussed on the basis of adsorption assisted desorption.

Original languageEnglish
Pages (from-to)210-214
Number of pages5
JournalSurface Science
Volume433-435
DOIs
Publication statusPublished - Aug 2 1999
Externally publishedYes
EventProceedings of the 1998 14th International Vacuum Congress(ICV-14), 10th Conference on Solid Surfaces(ICSS-10), 5th Conference on Nanometre-scale Science and Technology(NANO-5), 10th International Conference on Quantitative Surface Analysis(QSA-10) - Birmingham, United Kingdom
Duration: Aug 31 1998Sep 4 1998

Keywords

  • Acetate
  • Adsorption assisted desorption
  • Formate
  • Ni(110)
  • Time resolved infrared reflection absorption spectroscopy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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