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 journalArticle

220 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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