2022 Fiscal Year Final Research Report
Functionalization of nanomaterial surfaces by one-pot polycondensation polymer with conjugated system
| Project/Area Number |
20K05101
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 26030:Composite materials and interfaces-related
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| Research Institution | Kumamoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
吉本 惣一郎 熊本大学, 産業ナノマテリアル研究所, 准教授 (30323067)
高藤 誠 熊本大学, 大学院先端科学研究部(工), 教授 (50332086)
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | one pot reaction / modified nano carbon / nano particles / catalytic reaction / conjugated system / bottom up / surface reaction / energy system |
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| Outline of Final Research Achievements |
By the π-conjugated polymer preparation method, it is possible to modify fine particles such as nano-silica or carbon blacks with a π-conjugated polymer by a simple two-component polycondensation process, and it is also possible to control the degree of extension of the π-conjugated system by heat treatment at a relatively low temperature. be. In this study, this reaction was developed on the surface of conductive nanoparticles such as carbon black, semiconductor nanoparticles, and electrode surfaces, and nitrogen-containing aromatic compounds such as metal phthalocyanines and porphyrins, which are thought to be active sites for oxygen reduction reactions, were used as building blocks, π-conjugated polymers were synthesized on the surface by one-pot polycondensation reaction with trimethyl triazine. The obtained polymer-modified nanocarbons exhibited high catalytic functions for hydrogen evolution and oxygen reduction.
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| Free Research Field |
電気化学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では複数のOH基を有する芳香族化合物と三級アミンのone-pot合成によりボトムアップ的に触媒前駆体を形成する手法であるため、1) 金属イオンフリーの含窒素カーボンの作製も可能であることに加えて、鉄、コバルト、ニッケル等の非貴金属イオン、さらに貴金属イオンも自在に導入可能である、2) シリカ等の非導電性表面および、酸化物半導体表面、 金属表面、3) さらにはカーボンブラック等の導電性ナノ粒子も容易に被覆可能であるという点で多様な機能、構造を有する触媒を種々の基板表面に形成可能な独自の手法であり、将来性と可能性が高い研究である。
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