Efficient formose reactions using carbon-based materials as both reaction fields and catalysts

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K15355
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 27030:Catalyst and resource chemical process-related
• Research Institution: Tohoku University
• Principal Investigator: Yabushita Mizuho 東北大学, 工学研究科, 助教 (00835142)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 炭素材料 / 反応場 / 吸着 / バイオマス / ホルモース反応 / 不均一系触媒 / 塩基触媒

Outline of Final Research Achievements

Carbon-based catalysts that originally possess hydrophobic surface for adsorbing both substrates (carbohydrates and formaldehyde) and base sites as active sites were tried to be developed for highly-efficient catalytic systems for formose reactions. For this objective, the nitrogen-doped carbons, in which nitrogen-containing functional groups are assumed to act as active sites due to their basicity, were prepared via the carbonization of porphyrin under various conditions, but they did not exhibit catalytic performance for formose reactions. Another approach to loading metal oxides onto the surface of activated carbon in order to form base sites that show stronger basicity than nitrogen-containing functional groups, base metal oxides was not effective.
Meanwhile, the knowledge about the competitive adsorption processes in the presence of multiple solutes and the modification of metal nanoparticles by metal-oxide clusters has been obtained.

Free Research Field

触媒化学

Academic Significance and Societal Importance of the Research Achievements

複数の有機化合物が共存する水溶液中における競争吸着過程、特に木質バイオマスの前処理(有用成分の抽出・反応性向上)に用いられるイオン液体が存在する条件での知見が得られた。これは、今後2050年カーボンニュートラル実現に欠かせない「バイオマス利用」に寄与するものと期待している。また、固体表面のナノ粒子と金属酸化物クラスターを複合化させる触媒の開発に成功し、今後の固体触媒の精密設計に繋がると考えている。