Considerations of Thermodynamics and Kinetics for the Effects of Relative Humidity on the Electrolyte in Electrochemical Toxic Gas Sensors

• Published in: ACS sensors Vol. 6; no. 11; pp. 3985 - 3993
• Main Authors: Hitchman, Michael L, Saffell, John R
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 26.11.2021
• Subjects: Electrolytes; Gases; Humidity; Kinetics; Thermodynamics; electrochemical gas sensors; relative humidity; kinetic effects; water uptake; water evaporation; electrolyte thermodynamics; air quality

In this paper, the physical chemistry of the absorption and desorption of water vapor for electrochemical gas sensors with commonly used sulfuric acid as the electrolyte is investigated. Electrochemical gas sensors are being increasingly used for monitoring toxic gases in the environment, and they a...