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Issue 44, 2009
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Electrochemical control of the elution property of Prussian blue nanoparticle thin films: mechanism and applications

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Abstract

We found a method for controlling the elution property of a thin film of water-dispersible Prussian blue (w-PB) nanoparticles using a simple electrochemical treatment. The thin film of the w-PB nanoparticles fabricated by the spin-coating method was unstable in water and eluted easily. However, after electrochemical reduction and oxidation, the film did not elute in water. To clarify the mechanism, we investigated films using ultraviolet-visible absorption spectroscopy, X-ray photoemission spectroscopy, and atomic force microscopy. We propose herein that the change in the elution property occurs because of alkali cation exchange from Na+ to K+. We also demonstrated that this elution-control technique is effective for the fabrication of w-PB nanoparticle nanostructures such as multilayered thin films.

Graphical abstract: Electrochemical control of the elution property of Prussian blue nanoparticle thin films: mechanism and applications

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Publication details

The article was received on 18 Jun 2009, accepted on 17 Sep 2009 and first published on 14 Oct 2009


Article type: Paper
DOI: 10.1039/B912004A
Citation: Phys. Chem. Chem. Phys., 2009,11, 10500-10505
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    Electrochemical control of the elution property of Prussian blue nanoparticle thin films: mechanism and applications

    A. Omura, H. Tanaka, M. Kurihara, M. Sakamoto and T. Kawamoto, Phys. Chem. Chem. Phys., 2009, 11, 10500
    DOI: 10.1039/B912004A

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