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Development of single-atom supported hydride catalyst using hydrogen anion in the lattice

Research Project

Project/Area Number 20K22550
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0502:Inorganic/coordination chemistry, analytical chemistry, inorganic materials chemistry, energy-related chemistry, and related fields
Research InstitutionTokyo Institute of Technology

Principal Investigator

Masayoshi Miyazaki  東京工業大学, 元素戦略研究センター, 助教 (10883415)

Project Period (FY) 2020-09-11 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsOxyhydride / Hydride / Catalysts / Phenylacetylene / Hydrogenation / アニオン化合物 / 酸水素化物 / ヒドリド励起 / 水素化触媒 / 液相選択的水素化 / ヒドリド化合物 / 単原子触媒 / 光析出法 / エレクトライド
Outline of Research at the Start

ヒドリドイオンを格子内部に含むエレクトライドやヒドリド化合物は、触媒として高い活性を示すことが報告されているが、水素の活性化に高圧あるいは高温条件が必要である。本研究ではSurface Limited Redox Replacement(SLRR)を利用した、新規なヒドリド化合物上への金属担持手法により、金属を単原子レベルで均一に担持し、より温和な条件で高い触媒性能を示す触媒の開発を目指す。

Outline of Final Research Achievements

Highly dispersed active metal supported on hydride materials can be synthesized by light irratiation of hydride. Hexagonal-BaTiO(3-x)Hx can be synthesized by direct reaction of BaH2 and TiO2 under hydrogen flow. The Pd nanoparticles prepared by activation of hydride in this material by light irratiation was found to be more highly dispersed than those prepared by the conventional impregnation method. The prepared Pd-supported BaTiO(3-x)Hx catalyst showed higher activity and styrene selectivity for phenylacetylene hydrogenation thatn the conventional oxide-supported catalysts.

Academic Significance and Societal Importance of the Research Achievements

エレクトライドおよびペロブスカイトの水素化物は結晶骨格中に電子およびH-イオンを有しており、ユニークな物性を示すことから応用展開が期待されている。しかし、低表面積であることが多いため、ナノ粒子の高分散担持が達成することが困難であった。本研究ではヒドリド化合物上に金属が単原子レベルに分散した触媒を目的としている。この触媒はヒドリド化合物と単原子触媒の性質を併せ持つ触媒であると言え、光励起による還元法を用いた金属担持方法の確立によって、それぞれの分野において新たな知見を与えることが出来ると期待される。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (5 results)

All 2022 2021

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Hexagonal BaTiO(3-x)Hx Oxyhydride as a Water-Durable Catalyst Support for Chemoselective Hydrogenation2022

    • Author(s)
      Miyazaki Masayoshi、Ogasawara Kiya、Nakao Takuya、Sasase Masato、Kitano Masaaki、Hosono Hideo
    • Journal Title

      Journal of the American Chemical Society

      Volume: 144 Issue: 14 Pages: 6453-6464

    • DOI

      10.1021/jacs.2c00976

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Stable oxyhydride as electronic promotor for liquid phase hydrogenation2022

    • Author(s)
      Masayoshi Miyazaki, Kiya Ogasawara, Masaaki Kitano, Hideo Hosono
    • Organizer
      9th Tokyo Conference on Advanced Catalytic Science and Technology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 格子内ヒドリドイオンを用いた金属担持ヒドリド化合物触媒の開発と触媒特性2021

    • Author(s)
      宮崎雅義、小笠原気八、北野政明、細野秀雄
    • Organizer
      第128回触媒討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Oxyhydride as Supporting Materials for Liquid Phase Hydrogenation2021

    • Author(s)
      Masayoshi Miyazaki, Kiya Ogasawara, Masaaki Kitano, Hideo Hosono
    • Organizer
      18th Japan-Korea Symposium on Catalysis
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development and Catalysis of Metal-Supported Oxyhydride Using Hydride Ions in Lattice2021

    • Author(s)
      Masayoshi Miyazaki, Kiya Ogasawara, Masaaki Kitano, Hideo Hosono
    • Organizer
      Materials Research Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research

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Published: 2020-09-29   Modified: 2023-01-30  

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