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Issue 35, 2017

Electrosorption at functional interfaces: from molecular-level interactions to electrochemical cell design

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Abstract

Adsorption at charged interfaces plays an important role across all aspects of physical chemistry, from biological interactions within living organisms to chemical processes such as catalysis and separations. With recent advances in materials chemistry, there are a host of modified electrodes being investigated for electrosorption, especially in separations science. In this perspective, we provide an overview of functional interfaces being used for electrosorption, ranging from electrochemical separations such as deionization and selective product recovery to biological applications. We cover the various molecular mechanisms which can be used to enhance ion capacity, and in some cases, provide selectivity; as well as discuss the parasitic Faradaic reactions which often impair electrosorption performance. Finally, we point to the importance of electrochemical configurations, in particular the advantages of asymmetric cell design, and highlight the opportunities for selective electrosorption brought about by redox-mediated systems.

Graphical abstract: Electrosorption at functional interfaces: from molecular-level interactions to electrochemical cell design

Article information


Submitted
01 May 2017
Accepted
26 Jun 2017
First published
29 Jun 2017

Phys. Chem. Chem. Phys., 2017,19, 23570-23584
Article type
Perspective

Electrosorption at functional interfaces: from molecular-level interactions to electrochemical cell design

X. Su and T. A. Hatton, Phys. Chem. Chem. Phys., 2017, 19, 23570 DOI: 10.1039/C7CP02822A

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