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Hydrogen sensor for application in reusable launch vehicles
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- Suzuki Kengo
- New Cosmos Electric Co., Ltd.
Description
<p>We have been developing a novel hydrogen sensor using sintered ceria (CeO2−σ) nanoparticles in a collaboration with the Japan Aerospace Exploration Agency for application in spacecraft. The sensor can rapidly detect hydrogen in vacuum or oxygen-free conditions. This property originates from the fact that ceria is an oxide ion–electron mixed conductor. In this paper, the adsorption state of gases on the ceria surface is discussed based on the relationship between the gas partial pressure and carrier concentration. In addition, the sensing mechanism is clarified by combining the results of the in-situ X-ray absorption fine structure analysis of the valence change of ceria before and after hydrogen adsorption.</p>
Journal
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- JSAP Review
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JSAP Review 2022 (0), n/a-, 2022
The Japan Society of Applied Physics
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Details 詳細情報について
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- CRID
- 1390292859777827072
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- ISSN
- 24370061
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- Text Lang
- en
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- Data Source
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- JaLC
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- Abstract License Flag
- Allowed
