In situ calorimetry at metal-electro de liquid electrolyte interfaces as monitored by probe beam deflection techniques

Bin Hai, Daniel Alberto Scherson*

*この研究の対応する著者

研究成果: Article査読

6 被引用数 (Scopus)

抄録

A probe beam deflection method that allows for the heat generated or absorbed during an interfacial process to be determined in situ is herein described. These optical measurements are performed using a collimated laser beam propagating parallel to the interface through the back of a flat, optically transparent ZnSe crystal that supports a very thin film of a metal electrode in contact with the electrolyte solution. Analysis of experimental data collected for a Au electrode in sulfuric acid aqueous solutions using numerical simulations were found to be consistent with the release of ∼375 kJ/mol upon formation of a monolayer of Au oxide. This value is very similar to the value observed using the same methodology for the reduction of the Au oxide layer under otherwise the same experimental conditions.

本文言語English
ページ(範囲)18244-18250
ページ数7
ジャーナルJournal of Physical Chemistry C
113
42
DOI
出版ステータスPublished - 2009 11 20
外部発表はい

ASJC Scopus subject areas

  • 物理化学および理論化学
  • エネルギー(全般)
  • 電子材料、光学材料、および磁性材料
  • 表面、皮膜および薄膜

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