Electrochemistry of Prussian Blue Modified Electrodes: An Electrochemical Preparation Method

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Abstract

A new type of Prussian blue modified electrode is described. The Prussian blue modified electrode is electrochemically prepared in a solution of ferric‐ferricyanide. The amount of Prussian blue on electrodes such as platinum, glassy carbon, and is easily controlled by changing the current density, the electrode potential, and the time of the electrolysis. The waves observed at +0.2 and +1.0V vs. SCE are due to the reduction and the oxidation of the ferric part and of the ferrous part in the Prussian blue crystal, or , respectively. This electrode exhibits excellent stability in aqueous solution. A spectroelectrochemical property of the modified electrode is also described.

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