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Simultaneous electrochemical and 3D optical imaging of silver nanoparticle oxidation
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Batchelor-McAuley, Christopher, Martinez-Marrades, Ariadna, Tschulik, Kristina, Patel, Anisha N., Combellas, Catherine, Kanoufi, Frédéric, Tessier, Gilles and Compton, Richard G. (2014) Simultaneous electrochemical and 3D optical imaging of silver nanoparticle oxidation. Chemical Physics Letters, 597 . pp. 20-25. doi:10.1016/j.cplett.2014.02.007 ISSN 0009-2614.
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Official URL: http://dx.doi.org/10.1016/j.cplett.2014.02.007
Abstract
The oxidation of AgNPs at a thin-film gold electrode is simultaneously investigated via digital holography and electrochemistry. The use of holography allows, for the first time, the 3D visualization of the electrochemical interfacial region at a relatively high acquisition rate. It is demonstrated how the coupling of these two techniques provides complementary chemical information. The ensemble response of the oxidation of surface-adsorbed silver nanoparticles to AgCl is monitored electrochemically, whereas this process is difficult to observe optically. Conversely, the subsequent chemical dissolution of individual AgCl nanocrystals can be tracked optically due to the associated decrease in the scattered light intensity.
Item Type: | Journal Article | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||
Journal or Publication Title: | Chemical Physics Letters | ||||||
Publisher: | Elsevier BV | ||||||
ISSN: | 0009-2614 | ||||||
Official Date: | 28 March 2014 | ||||||
Dates: |
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Volume: | 597 | ||||||
Page Range: | pp. 20-25 | ||||||
DOI: | 10.1016/j.cplett.2014.02.007 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access |
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