Institute of Multidisciplinary Research for Advanced Materials, Tohoku University


LAST UPDATE 2021/05/04

  • 研究者氏名
    Researcher Name

    大須賀遼太 Ryota OSUGA
    助教 assistant professor
  • 所属
    Professional Affiliation

    Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

    プロセスシステム工学研究部門               ハイブリッドナノ粒子プロセス研究分野
    Division of Process and System Engineering, Hybrid Nano-particle
  • 研究キーワード
    Research Keywords

    Catalytic chemistry
    Porous materials
    Infrared (IR) spectroscopy
Research Subject
Development of highly active porous catalysts and characterization of catalytic properties

研究の背景 Background


Porous materials have been widely used as catalysts and catalyst supports owing to their high specific surface area. In order to obtain a highly active catalyst, it is necessary to accurately characterize the catalytic properties. However, the catalytic active sites on the solid surface are complicated, and many unclear points remain. Therefore, the development of highly active catalysts would be achieved by characterization of the catalytic properties and feeding them back to the catalyst design.

研究の目標 Outcome

私たちは、多孔質材料の中でも特にゼオライトに着目して研究を進めています。ゼオライト中に存在する酸・塩基点(Fig. 1)や、金属種の状態に関する情報(Fig. 2)をin-situ IR測定により得ることで、触媒特性評価を行っています。各々の触媒の特性を理解した上で、活性点位置の制御を試みることで、高活性な触媒開発を行ってきました。今後は、より精密な構造解析を行うことで、活性点を原子レベルで制御した触媒開発を目指しています。

Among the porous materials, we are focusing on “zeolite”. The acid-base pair sites and the state of metal species are characterized by in-situ IR measurements (Figs. 1 and 2). Highly active zeolite catalysts with controlling the location of active sites have been developed, which is achieved by understanding the catalytic properties of each catalyst. We aim to synthesis the zeolite catalysts with the active sites controlled at the atomic level.

研究図Research Figure

Fig.1. Characterization of acid-base pair sites on zeolite catalysts by CO2-probe IR method.

Fig.2. Development of Rh-containing zeolite as a highly active catalyst for partial oxidation of methane.

文献 / Publications

J. Catal. 395, 387 (2021). Micropor. Mesopor. Mater. 305, 110345 (2020).Chem. Commun. 56, 5913 (2020). Mol. Catal. 477, 110535 (2019).J. Catal. 371, 291 (2019). Micropor. Mesopor. Mater. 278 91 (2019).Phys. Chem. C 121, 25411 (2017).