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

نویسندگان

  • Charles Y Cummings
  • Frank Marken
  • Laurence M Peter
  • Asif A Tahir
  • K G Upul Wijayantha
چکیده

Rate constants for recombination and hole transfer during oxygen evolution at illuminated α-Fe(2)O(3) 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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عنوان ژورنال:
  • Chemical communications

دوره 48 14  شماره 

صفحات  -

تاریخ انتشار 2012