Cobalt-modified porous single-crystalline LaTiO 2N for highly efficient water oxidation under visible light

Fuxiang Zhang, Akira Yamakata, Kazuhiko Maeda, Yosuke Moriya, Tsuyoshi Takata, Jun Kubota, Katsuya Teshima, Shuji Oishi, Kazunari Domen

Research output: Contribution to journalArticlepeer-review

327 Citations (Scopus)

Abstract

Highly efficient water oxidation utilizing visible photons of up to 600 nm is a crucial step in artifical photosynthesis. Here we present a highly active photocatalyst for visible-light-driven water oxidation, consisting of single-crystalline meso- and macroporous LaTiO 2N (LTON) with a band gap of 2.1 eV, and earth-abundasnt cobalt oxide (CoO x) as a cocatalyst. The optimized CoO x/LTON had a high quantum efficiency of 27.1 ± 2.6% at 440 nm, which substantially exceeds the values reported for previous particulate photocatalysts with a 600-nm absorption edge.

Original languageEnglish
Pages (from-to)8348-8351
Number of pages4
JournalJournal of the American Chemical Society
Volume134
Issue number20
DOIs
Publication statusPublished - May 23 2012
Externally publishedYes

ASJC Scopus subject areas

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

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