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Issue 39, 2015
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Capping agent promoted oxidation of gold nanoparticles: cetyl trimethylammonium bromide

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Abstract

Capping agents, key for nanoparticle stability, may hugely influence chemical behaviour. We show that differently capped gold nanoparticles, with either citrate or cetyl trimethylammonium bromide (CTAB) capping agents, show qualitatively different electron transfer properties. Specifically through cyclic voltammetry and nanoimpact studies the CTAB promoted dissolution of gold nanoparticles is shown, highlighting the active role which capping agents can play in charge transfer.

Graphical abstract: Capping agent promoted oxidation of gold nanoparticles: cetyl trimethylammonium bromide

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Article information


Submitted
28 Aug 2015
Accepted
11 Sep 2015
First published
14 Sep 2015

Phys. Chem. Chem. Phys., 2015,17, 26054-26058
Article type
Communication
Author version available

Capping agent promoted oxidation of gold nanoparticles: cetyl trimethylammonium bromide

B. J. Plowman, K. Tschulik, N. P. Young and R. G. Compton, Phys. Chem. Chem. Phys., 2015, 17, 26054
DOI: 10.1039/C5CP05146K

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