High frequency reference electrode

Details High frequency reference electrode High frequency reference electrode

1991-03-05

1994-05-31

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204400, G01N 2730, G01N 2732

Patent

active

053166493

ABSTRACT:
A high frequency reference electrode for electrochemical experiments comprises a mercury-calomel or silver-silver chloride reference electrode with a layer of platinum around it and a layer of a chemically and electrically resistant material such as TEFLON around the platinum covering all but a small ring or "halo" at the tip of the reference electrode, adjacent to the active portion of the reference electrode. The voltage output of the platinum layer, which serves as a redox electrode, and that of the reference electrode are coupled by a capacitor or a set of capacitors and the coupled output transmitted to a standard laboratory potentiostat. The platinum may be applied by thermal decomposition to the surface of the reference electrode. The electrode provides superior high-frequency response over conventional electrodes.

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Mansfield et al., J. Electrochemical Soc., vol. 135, pp. 906-907, Apr., 1988.

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