Institute of Multidisciplinary Research for Advanced Materials, Tohoku University


LAST UPDATE 2021/05/07

  • 研究者氏名
    Researcher Name

    岩瀬和至 Kazuyuki IWASE
    助教 Assistant Professor
  • 所属
    Professional Affiliation

    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

    金属資源プロセス研究センター エネルギーデバイス化学研究分野
    Center for Mineral Processing and Metallurgy, Chemistry of Energy Conversion Devices
  • 研究キーワード
    Research Keywords

    Redox reaction
    Fuel cells
Research Subject
Development of novel nano-structured materials for electrocatalysts and their applications

研究の背景 Background


Development of electrocatalysts which can convert chemicals and/or energies in high efficiencies are desirable for realizing the sustainable society. For electrocatalysts which possess metal active centers, the coordination environment of metal centers is one of the important determining factors of catalytic activity and reaction selectivity of them. Thus, regulation of the coordination structure of metal active centers is essential to develop highly active and selective electrocatalysts for the target reactions.

研究の目標 Outcome


The objective of this research is designing and developing electrocatalysts with high activity and/or selectivity by regulation of coordination structure of metal active centers. For example, developing new synthesis routes of inorganic materials for regulating nano-structure or crystal structure and hybridizing such inorganic materials with polymers or carbon support are possible approaches. Applications of those electrocatalysts to fuel cells or artificial photosynthesis systems are also targets of this research.

研究図Research Figure

Fig.1. (top) Schematic illustration of Cu modified covalent triazine frameworks (Cu-CTFs), and (bottom) cyclic voltammograms in the presence of oxygen for CTF (black) and Cu-CTF (red).Fig.2. (top) Schematic illustration of Ni-CTF and molecular structure of Ni-tetraphenyl-porphyrin (Ni-TPP), and (bottom) potential dependence of faradaic efficiencies for carbon dioxide reduction to carbon monoxide for Ni-CTF and Ni-TPP.Fig.3. (top) Schematic illustration of coordination structure of Cu(I)-S complex and Cu(I) doped in sulfur linked CTF (Cu-S-CTF), and (bottom) cyclic voltammograms in the presence of oxygen for Cu-S-CTF (red), Cu(I)-S complexes (colored lines) and S-CTF (black).

文献 / Publications

Chem. Sci., 2018, 9, 3941., ACS Catal., 2018, 8, 2693., ChemElectroChem, 2018, 5, 805., Chem. Lett., 2018, 47, 304., Small, 2016, 12, 6083., J. Phys. Chem. C, 2016, 120, 15729., Angew. Chem. Int. Ed., 2015, 54, 11068.