Formation and Detection of Hydrogen by Oxygen Discharge Using Oxygen Pump-Sensor

An oxygen pump sensor was constructed using yttria-stabilized zirconia, which is an oxide ion conductor, and oxygen was discharged from steam to generate hydrogen. The oxygen pump sensor consisted of a pump that discharges oxygen and a sensor that controls the oxygen partial pressure by having elect...

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Main Authors: Michihisa Fukumoto, Kano Nakajima
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Hydrogen
Subjects:
Online Access:https://www.mdpi.com/2673-4141/3/4/29
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author Michihisa Fukumoto
Kano Nakajima
author_facet Michihisa Fukumoto
Kano Nakajima
author_sort Michihisa Fukumoto
collection DOAJ
description An oxygen pump sensor was constructed using yttria-stabilized zirconia, which is an oxide ion conductor, and oxygen was discharged from steam to generate hydrogen. The oxygen pump sensor consisted of a pump that discharges oxygen and a sensor that controls the oxygen partial pressure by having electrodes in two places. Oxygen was discharged by applying a current to the pump by controlling the potential of the sensor. Hydrogen was then generated from water vapor. Furthermore, an oxygen pump sensor was installed in the second stage, oxygen was supplied by the pump, and the amount of generated hydrogen was measured in situ. This measurement showed that the oxygen partial pressure of the atmosphere decreased as hydrogen was generated. Specifically, the partial pressure of the water vapor generated more hydrogen at 30.8 vol.% than at 12.2 vol.%. Moreover, the amounts of oxygen discharged and hydrogen generated inversely correlated with the potential.
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spelling doaj.art-1d3efcd3c6594685a7a58733d46783562023-11-24T15:17:29ZengMDPI AGHydrogen2673-41412022-11-013446347310.3390/hydrogen3040029Formation and Detection of Hydrogen by Oxygen Discharge Using Oxygen Pump-SensorMichihisa Fukumoto0Kano Nakajima1Graduate School of Engineering, Akita University, Akita 010-8502, JapanGraduate School of Engineering, Akita University, Akita 010-8502, JapanAn oxygen pump sensor was constructed using yttria-stabilized zirconia, which is an oxide ion conductor, and oxygen was discharged from steam to generate hydrogen. The oxygen pump sensor consisted of a pump that discharges oxygen and a sensor that controls the oxygen partial pressure by having electrodes in two places. Oxygen was discharged by applying a current to the pump by controlling the potential of the sensor. Hydrogen was then generated from water vapor. Furthermore, an oxygen pump sensor was installed in the second stage, oxygen was supplied by the pump, and the amount of generated hydrogen was measured in situ. This measurement showed that the oxygen partial pressure of the atmosphere decreased as hydrogen was generated. Specifically, the partial pressure of the water vapor generated more hydrogen at 30.8 vol.% than at 12.2 vol.%. Moreover, the amounts of oxygen discharged and hydrogen generated inversely correlated with the potential.https://www.mdpi.com/2673-4141/3/4/29hydrogenwater vaporoxygen partial pressuresolid electrolyteoxygen pump sensor
spellingShingle Michihisa Fukumoto
Kano Nakajima
Formation and Detection of Hydrogen by Oxygen Discharge Using Oxygen Pump-Sensor
Hydrogen
hydrogen
water vapor
oxygen partial pressure
solid electrolyte
oxygen pump sensor
title Formation and Detection of Hydrogen by Oxygen Discharge Using Oxygen Pump-Sensor
title_full Formation and Detection of Hydrogen by Oxygen Discharge Using Oxygen Pump-Sensor
title_fullStr Formation and Detection of Hydrogen by Oxygen Discharge Using Oxygen Pump-Sensor
title_full_unstemmed Formation and Detection of Hydrogen by Oxygen Discharge Using Oxygen Pump-Sensor
title_short Formation and Detection of Hydrogen by Oxygen Discharge Using Oxygen Pump-Sensor
title_sort formation and detection of hydrogen by oxygen discharge using oxygen pump sensor
topic hydrogen
water vapor
oxygen partial pressure
solid electrolyte
oxygen pump sensor
url https://www.mdpi.com/2673-4141/3/4/29
work_keys_str_mv AT michihisafukumoto formationanddetectionofhydrogenbyoxygendischargeusingoxygenpumpsensor
AT kanonakajima formationanddetectionofhydrogenbyoxygendischargeusingoxygenpumpsensor