Collisional electrochemistry of laser-ablated gold nanoparticles by electrocatalytic oxidation of glucose

Liu, Yang, Austen, Benjamin J.J., Cornwell, Thomas, Tilbury, Rhys D., Buntine, Mark A., O'Mullane, Anthony P., and Arrigan, Damien W.M. (2017) Collisional electrochemistry of laser-ablated gold nanoparticles by electrocatalytic oxidation of glucose. Electrochemistry Communications, 77. pp. 24-27.

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Abstract

We report the electrochemistry of gold nanoparticles (AuNPs), prepared by Laser Ablation Synthesis in Solution (LASiS), via the electrocatalytic oxidation of glucose upon single nanoparticle collisions at inert microelectrodes. Spherical AuNPs with diameters in the range 20–30 nm, as determined by transmission electron microscopy, were synthesized by LASiS of a gold plate immersed in water. Nanoparticle collisions were electrochemically detected through the AuNP-catalysed oxidation of glucose at carbon fiber microelectrodes in alkaline solution, enabling the electrocatalytic detection of single AuNPs. This approach provides a basis for detecting and understanding the electrocatalytic properties of pristine nanoparticles in aqueous solutions.

Item ID: 53019
Item Type: Article (Research - C1)
ISSN: 1873-1902
Keywords: electrocatalysis, glucose, gold nanoparticles, laser ablation, nano-impact
Date Deposited: 03 Apr 2018 01:06
FoR Codes: 03 CHEMICAL SCIENCES > 0301 Analytical Chemistry > 030102 Electroanalytical Chemistry @ 40%
03 CHEMICAL SCIENCES > 0306 Physical Chemistry (incl Structural) > 030604 Electrochemistry @ 40%
03 CHEMICAL SCIENCES > 0301 Analytical Chemistry > 030107 Sensor Technology (Chemical aspects) @ 20%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970103 Expanding Knowledge in the Chemical Sciences @ 100%
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