Hydrogen sensor for application in reusable launch vehicles

DOI

説明

<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>

収録刊行物

  • JSAP Review

    JSAP Review 2022 (0), n/a-, 2022

    公益社団法人 応用物理学会

詳細情報 詳細情報について

  • CRID
    1390292859777827072
  • DOI
    10.11470/jsaprev.220302
  • ISSN
    24370061
  • 本文言語コード
    en
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用可

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