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. Author manuscript; available in PMC: 2012 Apr 22.
Published in final edited form as: Inorg Chem. 2009 Nov 2;48(21):10001–10017. doi: 10.1021/ic901328v

Figure 15.

Figure 15

Radioactive isotope tracer studies of the Co-OEC repair process. (a) Percentage of 57Co leached from films of Co-OEC on an electrode: with a potential bias of 1.3 V (NHE) turned on and off at the times designated (Inline graphic) (the trace begins with the applied potential on); and without an applied potential bias (Inline graphic). (b) 32P leaching from Co-OEC on an electrode with an applied potential of 1.3 V (NHE) (Inline graphic) and without an applied potential bias (Inline graphic). (c) Percentage of 57Co leached from a typical Co-oxide catalyst on an electrode under a potential bias of 1.3 V (Inline graphic) and 1.5 V (Inline graphic) (NHE) and an unbiased electrode (Inline graphic). Pi was added at the time points indicated by the arrows. Figures adapted from ref. 158 and reproduced here with permission from the American Chemical Society.