Microelectrodes for Electrochemistry

µElectrodes

µElectrodeA variety of standard microelectrodes (electrodes with diameters 100 um or less, also referred to as ultramicroelectrodes) are in stock and available. We can also make custom electrodes of other materials or different sizes. These small electrodes have different properties that larger conventional electrodes that make them advantageous for certain studies. For longer time frame experiments, they have steady-state current response due to non-planar diffusion. They have lower iR drop and faster time response allowing for more rapid scan rates with much less ohmic distortion that larger electrodes.

The fine wires are sealed directly in glass. Every electrode is rigorously inspected visually and tested electrochemically before passing our quality system.

Cyclic voltammogram

Cyclic voltammogram of 2.0 mM ferrocene in 0.1 M tetrabutylammonium hexafluorophosphate/ acetonitrile with 10 um platinum disk electrode at 20 mV/s.

Cyclic voltammogram

Cyclic voltammogram of 2.0 mM ferrocene in 0.1 M tetrabutylammonium hexafluorophosphate/ acetonitrile with 100 um platinum disk electrode at 10 V/s.

Ordering information

Note: Online ordering for shipping to Continental U.S. only. All others contact us for formal quote.

Part Number Material Diameter Price Buy
EC-1100 Platinum 10 µm $250.00
EC-1110 Gold 10 µm $250.00

If interested in custom electrodes, please contact Jon@emergentinstruments.com

Microelectrode Identification

Since it is difficult to readily tell microelectrode size and material with the eye, a color code on the connection wire is used to easily differentiate them.