Hydrogen Gas Sensing of High Electrical Conducting-P2O5-SiO2 Glasses Prepared by Sol-Gel Process

High proton-conducting P2O5-SiO2 glass was applied to the electrolyte of the hydrogen concentration cell for hydrogen gas sensing. 5P2O5·95SiO2 glass was prepared using the sol-gel method and its electrical conductivity and electromotive force were measured at 50°C as a function of both the ambient...

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Veröffentlicht in:Journal of sol-gel science and technology 2000-12, Vol.19 (1-3), p.559-562
Hauptverfasser: Matsushita, Hiromi, Nagao, Ritsuko, Nogami, Masayuki, Kasuga, Toshihiro, Hayakawa, Tomokatsu
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container_title Journal of sol-gel science and technology
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creator Matsushita, Hiromi
Nagao, Ritsuko
Nogami, Masayuki
Kasuga, Toshihiro
Hayakawa, Tomokatsu
description High proton-conducting P2O5-SiO2 glass was applied to the electrolyte of the hydrogen concentration cell for hydrogen gas sensing. 5P2O5·95SiO2 glass was prepared using the sol-gel method and its electrical conductivity and electromotive force were measured at 50°C as a function of both the ambient humidity and hydrogen gas concentration. The electrical conductivities increased with increasing humidity and reached ∼ 10−2 S/cm at 90% relative humidity. The electromotive force of the hydrogen concentration cell, where the glass was used as a membrane, showed good Nernstian response to hydrogen pressure in the high relative humidity region.
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subjects Electric potential
Electrical resistivity
Electromotive forces
Gas sensors
Glass
Humidity
Hydrogen
Phosphorus pentoxide
Relative humidity
Silicon dioxide
Sol-gel processes
title Hydrogen Gas Sensing of High Electrical Conducting-P2O5-SiO2 Glasses Prepared by Sol-Gel Process
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