Preparation of p-type CaFe2O4 photocathodes for producing hydrogen from water

Shintaro Ida, Keisuke Yamada, Takuya Matsunaga, Hidehisa Hagiwara, Yasumichi Matsumoto, Tatsumi Ishihara

    Research output: Contribution to journalArticlepeer-review

    240 Citations (Scopus)

    Abstract

    An (hk0)-oriented p-type CaFe2O4 (Eg: 1.9 eV) photocathode was prepared, and hydrogen and oxygen gases were produced from a photocell short-circuited by connecting the CaFe2O4 and n-type TiO2 electrodes under illumination without applying an external voltage. The open-circuited voltage was 0.97 V and the short-circuit current was about 200 μA/cm2, and the amount of evaluated hydrogen and oxygen gases after 2 days of reaction were about 70 and 4 μmol, respectively.

    Original languageEnglish
    Pages (from-to)17343-17345
    Number of pages3
    JournalJournal of the American Chemical Society
    Volume132
    Issue number49
    DOIs
    Publication statusPublished - Dec 15 2010

    All Science Journal Classification (ASJC) codes

    • Catalysis
    • Chemistry(all)
    • Biochemistry
    • Colloid and Surface Chemistry

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