Development of Nanocluster Catalysts Utilizing Coordination Ability of Support

2019 Fiscal Year Final Research Report

• Project/Area Number: 18K14208
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 33020:Synthetic organic chemistry-related
• Research Institution: The University of Tokyo
• Principal Investigator: Yasukawa Tomohiro 東京大学, 大学院理学系研究科(理学部), 特任助教 (40755980)
• Project Period (FY): 2018-04-01 – 2020-03-31
• Keywords: 不均一系触媒 / 金属ナノ粒子 / コバルト触媒 / 窒素ドープカーボン / 二元金属 / 酸素酸化 / オレフィンの水和

Outline of Final Research Achievements

Nitrogen-doped carbon was used as a support with coordination ability to modify and activate first-row transition metal nanoparticles such as cobalt to develop effective catalysts for organic synthesis. The catalyst was prepared by applying the polymer-incarceration method developed in our group using polyvinyl pyridine as the nitrogen source. We found that these nitrogen-doped carbon-supported cobalt catalysts effectively promotes oxygenation of olefins. The reaction did not proceed with the corresponding carbon-supported cobalt catalyst suggesting that the nitrogen dopant was indispensable for the reaction. In addition, we developed nitrogen-doped carbon supported bimetallic nanoparticle catalysts that exhibited high activity in various oxidation reactions.

Free Research Field

有機合成化学

Academic Significance and Societal Importance of the Research Achievements

担持金属ナノ粒子触媒は、高活性かつ高頑健性を併せ持つ不均一系触媒として期待されるが、精密有機合成への応用例は、貴金属類のものに限られていた。本研究では、配位修飾能を持つ固相担体等を用いることで、高活性状態にあるナノ粒子種を作り出すことに成功し、地球上に豊富に存在するコバルトなどの第一周期遷移金属ナノ粒子を有機合成に有効な触媒として展開できた。開発したナノ粒子触媒は安定かつ取り扱いが容易で、フロー法を用いた連続合成にも適する為、工業スケールでのクリーンな有機合成の新手法として期待される。