Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 131, Issue 32, Pages 11471-11477Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja902331u
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Funding
- NanoNed
- NWO
- DFG
- U.S. National Science Foundation [0754396]
- Office Of Internatl Science &Engineering
- Office Of The Director [0754396] Funding Source: National Science Foundation
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We demonstrate that a 50 nm high solution-filled cavity bounded by two parallel electrodes in which electrochemically active molecules undergo rapid redox cycling can be used to determine very fast electron-transfer kinetics. We illustrate this capability by showing that the heterogeneous rate constant of Fc(MeOH)(2) sensitively depends on the type and concentration of the supporting electrolyte. These solid-state devices are mechanically robust and stable over time and therefore have the potential to become a widespread and versatile tool for electrochemical measurements.
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