Hydrogen production by photocatalytic water splitting of aqueous hydrogen iodide over Pt/alkali metal tantalates

Hidehisa Hagiwara, Ittoku Nozawa, Katsuaki Hayakawa, Tatsumi Ishihara

    研究成果: Contribution to journalArticle査読

    6 被引用数 (Scopus)

    抄録

    Photocatalytic hydrogen production from aqueous hydrogen iodide (HI) over alkali metal tantalates loaded with Pt (Pt/ATaO3, A = Li, Na, or K) was demonstrated. Of the photocatalysts examined, Pt/KTaO3 showed the highest photocatalytic activity for HI decomposition. KTaO3, having the lowest excitation energy, absorbs the largest number of photons for use in photocatalytic reactions, and its corresponding catalyst has the highest number of reaction sites owing to the excellent dispersion of the Pt cocatalyst. These results demonstrate the possibility of developing a new solar-energy-based water splitting process that can convert both light and thermal energy in sunlight to hydrogen energy.

    本文言語英語
    ページ(範囲)3021-3028
    ページ数8
    ジャーナルSustainable Energy and Fuels
    3
    11
    DOI
    出版ステータス出版済み - 2019

    All Science Journal Classification (ASJC) codes

    • 再生可能エネルギー、持続可能性、環境
    • 燃料技術
    • エネルギー工学および電力技術

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