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Issue 27, 2016
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Theory of reactions at electrified interfaces

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Interfacial reaction and transport processes are a decisive factor for the overall performance of electrochemical systems. However, existing models rely on phenomenological descriptions of charged interfaces, which yields no deeper insights. We present a generic theory to describe charge and electron transfer reactions at charged interfaces, which is applicable to different electrochemical systems, like fuel cells or batteries with liquid or solid electrolytes. In the present work, our general theory is adopted to the electrochemical double layer at the interface between a solid electrode and a liquid electrolyte. The model allows to describe the intercalation reaction in Li-ion insertion batteries as a two-step process, consisting of a first desolvation and adsorption and a second actual insertion step. It becomes apparent that a charging of the double layer acts as the necessary driving force for the charge transfer across the interface.

Graphical abstract: Theory of reactions at electrified interfaces

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Publication details

The article was received on 21 Apr 2016, accepted on 18 May 2016 and first published on 18 May 2016

Article type: Communication
DOI: 10.1039/C6CP02681H
Citation: Phys. Chem. Chem. Phys., 2016,18, 17799-17804
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    Theory of reactions at electrified interfaces

    J. Lück and A. Latz, Phys. Chem. Chem. Phys., 2016, 18, 17799
    DOI: 10.1039/C6CP02681H

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