表面と真空
Online ISSN : 2433-5843
Print ISSN : 2433-5835
特集:2019年日本表面真空学会学術講演会特集号Ⅳ
メタン水蒸気改質反応条件下の光触媒に対する紫外光強度変調オペランドFT-IR分光
佐藤 宏祐杉本 敏樹
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2020 年 63 巻 9 号 p. 476-481

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Photocatalytic steam-methane reforming is an attractive chemical technology for hydrogen production from abundant resources of methane and water. In the case of photocatalytic reaction, photo-generated electron plays key roles in hydrogen production. However, the dynamics of photogenerated electrons under reaction condition have been unclear. To uncover the behavior of reactive photo-excited electrons, we conducted operando FT-IR spectroscopy of metal loaded Ga2O3 photocatalysts under irradiation of intensity modulated UV light. We succeeded in observing a correlation between the reaction activity and a broad mid-infrared absorption band derived from the photo-generated electrons shallowly trapped at the photocatalyst surfaces.

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この記事はクリエイティブ・コモンズ [表示 - 非営利 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by-nc/4.0/deed.ja
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