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Electrochemical Synthesis of Indium(0) Nanoparticles in Haloindate(III) Ionic Liquids

Authors

  • Dr. Julien Estager,

    1. The QUILL Research Centre, The Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland (UK), Fax: (+44) 28 90665297
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  • Dr. Peter Nockemann,

    1. The QUILL Research Centre, The Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland (UK), Fax: (+44) 28 90665297
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  • Prof. Kenneth R. Seddon,

    1. The QUILL Research Centre, The Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland (UK), Fax: (+44) 28 90665297
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  • Dr. Geetha Srinivasan,

    1. The QUILL Research Centre, The Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland (UK), Fax: (+44) 28 90665297
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  • Dr. Małgorzata Swadźba-Kwaśny

    Corresponding author
    1. The QUILL Research Centre, The Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland (UK), Fax: (+44) 28 90665297
    • The QUILL Research Centre, The Queen's University of Belfast, David Keir Building, Stranmillis Road, Belfast, BT9 5AG, Northern Ireland (UK), Fax: (+44) 28 90665297
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Abstract

A synthetic route to indium(0) nanoparticles via an electrochemical reduction of haloindate(III) ionic liquids to indium(I), and its subsequent disproportionation to indium(0) and indium(III) in the bulk electrolyte, is described. In this sustainable method, the ionic liquid acts simultaneously as metal source, templating agent, and stabilising agent, with the electron as the only reducing agent. The nature of the ionic liquid cation is demonstrated to strongly affect the morphology and size distribution of the indium(0) nanoparticles.

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