In situ dual-beam coincidence second harmonic generation as a probe of spatially resolved dynamics at electrochemical interfaces

Boguslaw Pozniak, Daniel Alberto Scherson*

*この研究の対応する著者

研究成果: Article査読

14 被引用数 (Scopus)

抄録

In situ dual-beam coincidence second harmonic generation was used to monitor spatially resolved dynamics at the Pt(111)/CO-saturated 0.1 M HClO4 interface. The results obtained showed that, for potential steps from 30 to about 870 mV vs RHE, the full electrooxidation of CO as evidenced from SHG occurred at different times for the two areas of the Pt(111) surface probed by the beams. On this basis, the diffusional rates of adsorbed CO cannot be assumed to be generally large enough as to render the entire surface in a homogeneous state, as invoked by the mean field approximation model.

本文言語English
ページ(範囲)14696-14697
ページ数2
ジャーナルJournal of the American Chemical Society
126
45
DOI
出版ステータスPublished - 2004 11月 17
外部発表はい

ASJC Scopus subject areas

  • 触媒
  • 化学 (全般)
  • 生化学
  • コロイド化学および表面化学

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