4.7 Article

Kinetics and mechanism of light-driven oxygen evolution at thin film α-Fe2O3 electrodes

Journal

CHEMICAL COMMUNICATIONS
Volume 48, Issue 14, Pages 2027-2029

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cc16382a

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Funding

  1. Engineering and Physical Sciences Research Council [EP/F057342/1] Funding Source: researchfish
  2. EPSRC [EP/F057342/1] Funding Source: UKRI

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Rate constants for recombination and hole transfer during oxygen evolution at illuminated alpha-Fe2O3 electrodes were measured by intensity-modulated photocurrent spectroscopy and found to be remarkably low. Treatment of the electrode with a Co(II) solution suppressed surface recombination but did not catalyse hole transfer. Intermediates in the reaction were detected spectroscopically.

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