In situ FTIR and XPS studies of the hexacyanoferrate Redox system
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Evidence from in situ FTIR studies is provided for the presence of irreversibly adsorbed species on the platinum electrode in the hexacyanoferrate redox system in 0.5 M aqueous K 2 SO 4 at neutral pH. Both FTIR and XPS data show that the adsorbed species is Prussian blue, which is bound to platinum through the nitrogen of the CN group