X-ray induced photocurrents at the metal/solution interface

Yuriy V. Tolmachev, In Tae Bae, Daniel Alberto Scherson

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A technique is herein described for the acquisition of X-ray absorption spectra of electrodes fully immersed in an electrolyte solution by monitoring the energy dependence of X-ray induced photocurrents. This novel strategy made it possible to obtain in situ Au LIII-edge X-ray absorption spectra of solid Au electrodes displaying virtually identical features to those recorded simultaneously via X-ray fluorescence. The dependence of the X-ray induced photocurrents on chopping frequency and electrode potential was found to be consistent with a temperature modulation of the rate of the interfacial electron transfer (faradaic heating currents), rather than electron photoemission, as the primary source of the observed effects.

Original languageEnglish
Pages (from-to)7663-7667
Number of pages5
JournalJournal of Physical Chemistry B
Volume104
Issue number32
Publication statusPublished - 2000 Aug 17
Externally publishedYes

Fingerprint

Photocurrents
photocurrents
Metals
X ray absorption
X-Rays
X rays
Electrodes
Absorption spectra
metals
x rays
Electrons
Photoemission
Electrolytes
solid electrodes
absorption spectra
Fluorescence
Modulation
electrodes
Heating
Monitoring

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

X-ray induced photocurrents at the metal/solution interface. / Tolmachev, Yuriy V.; Bae, In Tae; Scherson, Daniel Alberto.

In: Journal of Physical Chemistry B, Vol. 104, No. 32, 17.08.2000, p. 7663-7667.

Research output: Contribution to journalArticle

Tolmachev, Yuriy V. ; Bae, In Tae ; Scherson, Daniel Alberto. / X-ray induced photocurrents at the metal/solution interface. In: Journal of Physical Chemistry B. 2000 ; Vol. 104, No. 32. pp. 7663-7667.
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