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Issue 20, 2018
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Ionic structure around polarizable metal nanoparticles in aqueous electrolytes

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Abstract

Metal nanoparticles are receiving increased scientific attention owing to their unique physical and chemical properties that make them suitable for a wide range of applications in diverse fields, such as electrochemistry, biochemistry, and nanomedicine. Their high metallic polarizability is a crucial determinant that defines their electrostatic character in various electrolyte solutions. Here, we introduce a continuum-based model of a metal nanoparticle with explicit polarizability in the presence of different kinds of electrolytes. We employ several, variously sophisticated, theoretical approaches, corroborated by Monte Carlo simulations in order to elucidate the basic electrostatics principles of the model. We investigate how different kinds of asymmetries between the ions result in non-trivial phenomena, such as charge separation and a build-up of a so-called zero surface-charge double layer.

Graphical abstract: Ionic structure around polarizable metal nanoparticles in aqueous electrolytes

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Article information


Submitted
27 Feb 2018
Accepted
04 Apr 2018
First published
10 Apr 2018

This article is Open Access

Soft Matter, 2018,14, 4053-4063
Article type
Paper

Ionic structure around polarizable metal nanoparticles in aqueous electrolytes

B. Petersen, R. Roa, J. Dzubiella and M. Kanduč, Soft Matter, 2018, 14, 4053
DOI: 10.1039/C8SM00399H

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    [Original citation] - Published by The Royal Society of Chemistry.

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