National Physical Laboratory

Imaging Size Effects on the Electrocatalytic Activity of Gold Nanoparticles Using Scanning Electrochemical Microscopy

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Published: 03 October 2013

Authors: Andrew J. Wain

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This work demonstrates the innovative application of scanning electrochemical microscopy (SECM) to imaging the electrocatalytic activity of gold nanoparticle ensembles immobilized in an array platform.

Remarkable particle size effects were observed for both oxygen reduction and hydrogen peroxide oxidation reactions, which can be correlated to measured differences in the exposed gold surface facets for particle diameters in the range 5 - 50nm.

Last Updated: 3 Oct 2013
Created: 22 Aug 2013

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