Energy Transfer Dynamics of Formate Decomposition on Cu(110)

Jiamei Quan, Takahiro Kondo, Guichang Wang, Junji Nakamura

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Energy transfer dynamics of formate (HCOOa) decomposition on a Cu(110) surface has been studied by measuring the angle-resolved intensity and translational energy distributions of CO2 emitted from the surface in a steady-state reaction of HCOOH and O2. The angular distribution of CO2 shows a sharp collimation with the direction perpendicular to the surface, as represented by cosnθ (n=6). The mean translational energy of CO2 is measured to be as low as 100 meV and is independent of the surface temperature (Ts). These results clearly indicate that the decomposition of formate is a thermal non-equilibrium process in which a large amount of energy released by the decomposition reaction of formate is transformed into the internal energies of CO2 molecules. The thermal non-equilibrium features observed in the dynamics of formate decomposition support the proposed Eley–Rideal (ER)-type mechanism for formate synthesis on copper catalysts.

Original languageEnglish
Pages (from-to)3496-3500
Number of pages5
JournalAngewandte Chemie - International Edition
Volume56
Issue number13
DOIs
Publication statusPublished - Mar 20 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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