Fabrication of a Shear Force-based Ion-selective Capillary Probe for Scanning Electrochemical Microscopy
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A shear force-based ion-selective probe for scanning electrochemical microscopy was fabricated for the imaging of localized potassium ions. A solution of dibenzo-18-crown-6/1,2-dichloroethane was added to a pulled capillary which was contact with a tuning fork attached to a piezoelectric buzzer. 10 μm of a Nafion island on glass was imaged, and the topography and current image originating from localized potassium ion concentration were obtained.
- Chemistry Letters
Chemistry Letters 37(4), 392-393, 2008-04-05
The Chemical Society of Japan