Coupled optical and electrochemical probing of silver nanoparticle destruction in a reaction layer
The oxidation of silver nanoparticles is induced to occur near to, but not at, an electrode surface. This reaction at a distance from the electrode is studied through the use of dark-field microscopy, allowing individual nanoparticles and their reaction with the electrode product to be visualized. T...
| Váldodahkkit: | , , , , , |
|---|---|
| Materiálatiipa: | Journal article |
| Giella: | English |
| Almmustuhtton: |
John Wiley & Sons, Inc.
2018
|
| Čoahkkáigeassu: | The oxidation of silver nanoparticles is induced to occur near to, but not at, an electrode surface. This reaction at a distance from the electrode is studied through the use of dark-field microscopy, allowing individual nanoparticles and their reaction with the electrode product to be visualized. The oxidation product diffuses away from the electrode and oxidizes the nanoparticles in a reaction layer, resulting in their destruction. The kinetics of the silver nanoparticle solution-phase reaction is shown to control the length scale over which the nanoparticles react. In general, the new methodology offers a route by which nanoparticle reactivity can be studied close to an electrode surface. |
|---|