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2023 Fiscal Year Final Research Report

Development of High-Efficiency Oxidative Transformations Based on Trinuclear Compisite Catalysts

Research Project

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Project/Area Number 21K04774
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 27030:Catalyst and resource chemical process-related
Research InstitutionFukushima Medical University

Principal Investigator

Tanabe Makoto  福島県立医科大学, 公私立大学の部局等, 教授 (80376962)

Project Period (FY) 2021-04-01 – 2024-03-31
Keywordsナノ粒子 / 還元反応 / 合金 / デンドリマー / 銅
Outline of Final Research Achievements

The aim of this study is to develop a multinuclear cluster catalyst composed of "precious metals" and "typical metals," with "copper (a base metal)" as the core, which is inexpensive and redox-active. Using a UV-Vis spectrophotometer, the reduction reaction of aromatic nitro compounds can be easily tracked. The trinuclear subnano catalyst Pt4Sn8Cu16 progressed the reduction reaction in the shortest time compared to the dinuclear catalysts Pt12Sn16 and Pt12Sn16, as well as the mononuclear catalysts Pt28, Cu28Ox, and Sn28Ox. The trinuclear catalyst, which exhibited the highest activity, achieved over 95% conversion of the nitro compound feedstock in almost the same short time when the feedstock was re-added, and its reuse was confirmed for five cycles.

Free Research Field

触媒化学

Academic Significance and Societal Importance of the Research Achievements

本研究成果の学術的意義として、複数元素で構成される多元素ハイブリッド触媒は各元素の特長が色濃く示されるため、その特徴を活用した触媒ナノ粒子の設計指針を見出したことである。最近、5種以上の元素が混在するハイエントロピー合金ナノ粒子は、合成時の熱的安定性が触媒活性を低下させること、各元素の役割がほとんど理解できないこと、類似した元素で構成された合金粒子の特性を効率的に活かせないことなど、本研究で対象とする多元素ハイブリッド触媒とは、その特異性が異なる。貴金属、卑金属、典型金属の異なる化学的性質をもつ元素をランダムに混在させたサブナノ粒子の触媒設計を確立した研究成果は、社会的意義にも意味がある。

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Published: 2025-01-30  

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