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Issue 21, 2011
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Double layer effects on metal nucleation in deep eutectic solvents

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Abstract

The electrodeposition of zinc has been studied in two deep eutectic solvents. Unlike the metals studied to date in these liquids, zinc electrodeposition is not mass transport limited and the morphology of the deposit differs in the two liquids. This study shows that changing the concentration of solute affects the physical properties of the liquid to different extents although this is found to not effect the morphology of the metal deposited. EXAFS was used to show that the speciation of zinc was the same in both liquids. Double layer capacitance studies showed differences between the two liquids and these are proposed to be due to the adsorption of a species on the electrode which is thought to be chloride. The differences in zinc morphology is attributed to blocking of certain crystal faces leading to deposition of small platelet shaped crystals in the glycol based liquid.

Graphical abstract: Double layer effects on metal nucleation in deep eutectic solvents

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Publication details

The article was received on 22 Oct 2010, accepted on 24 Mar 2011 and first published on 26 Apr 2011


Article type: Paper
DOI: 10.1039/C0CP02244F
Citation: Phys. Chem. Chem. Phys., 2011,13, 10224-10231
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    Double layer effects on metal nucleation in deep eutectic solvents

    A. P. Abbott, J. C. Barron, G. Frisch, S. Gurman, K. S. Ryder and A. Fernando Silva, Phys. Chem. Chem. Phys., 2011, 13, 10224
    DOI: 10.1039/C0CP02244F

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