Studies of a Nitrogen Dioxide Sensitive, Chalcogenide Glass Electrode

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Abstract
Properly activated electrodes, when exposed to nitrogen dioxide in air, develop shifts in their steady‐state potentials and, at constant potential, develop cathodic currents which are functions of the concentration in the gas phase. This reversible response, and the selectivity in the presence of O2, , , , , , and , cannot be reconciled with conventional redox, pH, or solubility product mechanisms, but must involve a specific chemisorption of the by the electrode surface.

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