Institute of Multidisciplinary Research for Advanced Materials, Tohoku University


LAST UPDATE 2021/05/03

  • 研究者氏名
    Researcher Name

    加藤英樹 Hideki KATO
    教授 Professor
  • 所属
    Professional Affiliation

    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

    無機材料研究部門 物質変換無機材料研究分野
    Division of Inorganic Material Research, Inorganic Materials for Chemical Transformation
  • 研究キーワード
    Research Keywords

    Synthesis of inorganic materials
    Band potential tuning
    Artificial photosynthesis
Research Subject
Development of photocatalysts for energy conversion aiming at artificial photosynthesis

研究の背景 Background


Shift from the present energy system based on fossil fuels to one based on renewable energy is necessary to realize the sustainable society. Revolutionary growth of artificial photosynthesis, which is technology to convert solar energy to chemical energy, is being challenge. Photocatalysis is an important research field of the artificial photosynthesis, and remarkable improvement is demanded.

研究の目標 Outcome


To construct highly efficient photocatalysts, my interest is focused on development of new photocatalyst materials and establishment of methods to improve performance of photocatalysts. Key methodologies to achieve them are tuning of band potential by substitution of foreign elements and synthesis and/or post-treatment of photocatalysts using various chemical processes to obtain crystals exposing unusual facets and to establish new routes for synthesis.

研究図Research Figure

Fig.1 Significant improvement of photocatalytic activity of SrTiO3 for water splitting through fabrication of crystals exposing unusual facets. Fig.2 Appearance of ability for O2 evolution with control of valence band potential of perovskite-type oxynitride. Fig.3 Development of new visible light responsive photocatalysts by incorporation of Cu(I) ion into LaTa7O19.

文献 / Publications

Catal. Sci. Technol., 3, 1733 (2013). Chem. Lett., 42, 744 (2013). J. Mater. Chem. A, 1, 8667 (2013). J. Mater. Chem. A, 1, 12327 (2013).

Catal. Sci. Technol., 3, 3147 (2013). J. Mater. Chem. A, 3, 11824 (2015), Appl. Catal. B, 206, 444 (2017)