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1 Polish Journal of Chemistry

1 2001

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Electrochemical Charging of Indium Hexacyanoferrate Films in DMSO and AcetonitrileWater Mixtures Containing Alkali Metal Cations

100%

Dzieniszewski R. , Stroka J. , Kulesza P. J. , Galus Z.

tom Vol. 75, nr 11

1753-1765

Indium hexacyanoferrate films were investigated in water-acetonitrile and water- dimethylsulfoxide mixtures containing various alkali metal cations. The films, which were electrodeposited from the supporting electrolytes containing lithium cations, occurred to have fairly open structure permitting the transport of alkali metal cations in the solutions (mixtures) rich in nonaqueous solvents. The slopes of dependencies of formal potentials on the logarithms of concentrations of alkali metal cations were consistent with the predominant involvement of countercations in the redox reactions. But in the cases when the content of nonaqueous solvent was relatively high, the slopes were definitely lower than Nernstian (60mVper cation activity decade), thus implying a more complex mechanism of the reaction.