A Two Electrode Electrochemical Amperometric Sensor for NO₂ Detection

A.Fort, C. Lotti, M. Mugnaini, R.Palombari, S. Rocchi, L.Tondi, V.Vignoli

Abstract

In this work a new and simple two electrode amperometric sensor for NO₂ detection is described. The sensor consists of a Nafion® proton exchange membrane (PEM), a Graphite working electrode, and a NiO counter electrode. The developed sensor presents a good sensitivity to NO₂ and very small cross sensitivity to CO and O₂. A dedicated measurement system was developed, and a measurement protocol was found, ensuring satisfactory performance also in terms of repeatability.

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TC19 - Environmental Measurements

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