Sensor Based on a Solid Oxide Electrolyte for Measuring the Water-Vapor and Hydrogen Content in Air

Anatoly Kalyakin; Anatoly K. Demin; Elena Gorbova; Alexander Volkov; Panagiotis E. Tsiakaras

doi:10.3390/catal12121558

Catalysts (Dec 2022)

Sensor Based on a Solid Oxide Electrolyte for Measuring the Water-Vapor and Hydrogen Content in Air

Anatoly Kalyakin,
Anatoly K. Demin,
Elena Gorbova,
Alexander Volkov,
Panagiotis E. Tsiakaras

Affiliations

Anatoly Kalyakin: Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes, Institute of High Temperature Electrochemistry, Russian Academy of Sciences, 20 Akademicheskaya Str., 620990 Yekaterinburg, Russia
Anatoly K. Demin: Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes, Institute of High Temperature Electrochemistry, Russian Academy of Sciences, 20 Akademicheskaya Str., 620990 Yekaterinburg, Russia
Elena Gorbova: Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes, Institute of High Temperature Electrochemistry, Russian Academy of Sciences, 20 Akademicheskaya Str., 620990 Yekaterinburg, Russia
Alexander Volkov: Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes, Institute of High Temperature Electrochemistry, Russian Academy of Sciences, 20 Akademicheskaya Str., 620990 Yekaterinburg, Russia
Panagiotis E. Tsiakaras: Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes, Institute of High Temperature Electrochemistry, Russian Academy of Sciences, 20 Akademicheskaya Str., 620990 Yekaterinburg, Russia

DOI: https://doi.org/10.3390/catal12121558
Journal volume & issue: Vol. 12, no. 12
p. 1558

Abstract

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The present communication describes the results of the performance and the assessment of a sensor based on a solid oxide electrolyte with a composition of 0.9ZrO2 + 0.1Y2O3 (YSZ), equipped with a ceramic diffusion barrier for measuring the water vapor and hydrogen content in air. The possibility of determining the concentration of water vapor and hydrogen in the air is based on the measurement of the limiting current value. For the calculation of the steam and hydrogen concentration in ambient air, analytical expressions were obtained and applied, using the limiting current values measured in air with a standard oxygen concentration of 20.9 vol.% and in the analyzed air. A two-stage method for the determination of the hydrogen and steam amount in ambient air is proposed. It is stated that the sensor operates successfully at the temperature of 700 °C and can be applied for the continuous determination of steam or hydrogen concentrations in air.

Published in Catalysts

ISSN: 2073-4344 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology; Science: Chemistry
Website: https://www.mdpi.com/journal/catalysts

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