Effects of Instrumental Filters on Electrochemical Measurement of Single‐Nanoparticle Collision Dynamics
Abstract
We discuss herein present‐day instrumental limitations to the electrochemical measurement of fast processes occurring at the single‐entity scale. We focus on the effect of filters on potentiostatic experiments in which the monitored current results from partial oxidations of an individual Ag nanoparticle undergoing repeated high‐frequency collisions with an electrode. From analysis of the resulting peak‐shaped current‐time events, we conclude that the average timescale of a single Ag nanoparticle/electrode collision is too short to resolve at the temporal limitations of current instrumentation. These findings are consistent with previously reported random walk model that predicts nanoparticle/electrode interactions at nanosecond timescales.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 10, 2018
- Source ID
- 10.1002/celc.201800696
Entities
People
- Donald A Robinson
- Hang Ren
- Henry S. White
- Martin Edwards
Organizations
- Air Force Office of Scientific Research
- Office of Naval Research
- University of Utah