太陽光水素製造を目指した可視光応答型光触媒系の開発

• 阿部 竜

  京都大学大学院工学研究科

書誌事項

タイトル別名

• Development of Visible Light Responsive Photocatalysts for Solar Hydrogen Production
• タイヨウコウ スイソ セイゾウ オ メザシタ カシコウ オウトウガタ ヒカリ ショクバイケイ ノ カイハツ

抄録

Photocatalytic water splitting using semiconductor materials has attracted considerable interest due to its potential for clean production of H₂ from water by utilizing abundant solar light. We have developed a new type of photocatalysis system that can split water into H₂ and O₂ under visible light irradiation, which was inspired by the two-step photoexcitation (Z-scheme) mechanism of natural photosynthesis in green plants. The introduction of a Z-scheme mechanism with appropriate redox couples reduces the energy required to drive each photocatalysis process, extending the usable wavelengths significantly from that in conventional water splitting systems. The key in constructing such Z-scheme systems is to clarify and utilize the reactivities of redox couples based on their adsorption onto the photocatalyst surfaces, on which photogenerated carriers (electrons and holes) react with the redox couples.

収録刊行物

• 表面科学

  表面科学 38 (6), 274-279, 2017

  公益社団法人 日本表面科学会

キーワード

• hydrogen production
• photocatalyst
• visible light
• redox
• adsorption

詳細情報

• CRID: 1390001206457234560
• NII論文ID: 130007332014
• NII書誌ID: AN00334149
• DOI: 10.1380/jsssj.38.274
• ISSN: 18814743
• ISSN: 03885321
• NDL書誌ID: 028322160
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I028322160
• Web Site: https://www.jstage.jst.go.jp/article/jsssj/38/6/38_274/_pdf
• 本文言語コード: ja
• データソース種別:
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• 抄録ライセンスフラグ: 使用不可