Hierarchical liquid crystal assemblies based on large graphene oxide sheets and nonionic organic compounds
| Project/Area Number |
20K03887
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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 13040:Biophysics, chemical physics and soft matter physics-related
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| Research Institution | Waseda University |
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Principal Investigator |
GUEGAN Regis 早稲田大学, 理工学術院, 准教授(任期付) (50822483)
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| Co-Investigator(Kenkyū-buntansha) |
山田 貴壽 国立研究開発法人産業技術総合研究所, 材料・化学領域, 研究チーム長 (30306500)
畠山 一翔 国立研究開発法人産業技術総合研究所, 材料・化学領域, 研究員 (30773965)
菅原 義之 早稲田大学, 理工学術院, 教授 (50196698)
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Project Status |
Completed (Fiscal Year 2022)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | colloids / nanocomposites / graphene oxide / surfactants / mesoporous materials / nonionic surfactants / excluded volume / phase transitions / Nanosheets / hierarchical assemblies / nanosheets / liquid crystals / graphene oxide sheets / advanced materials |
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| Outline of Research at the Start |
The mixture of flexible LC made of nonionic surfactants with GO nanosheets appears to be an easy and original way to construct hierarchical composites. Since GO nanosheets can be oriented at a macroscopic scale through weak stimuli (e.g. electric fields or freeze casting strategies), we plan to fabricate well oriented mesoporous films based on the morphologies of the CnEm templates assisted by GO LC phase. The resulting oriented films are expected to display energy-related properties, for possible supercapacitor applications for instance.
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| Outline of Final Research Achievements |
The main objectives of the JSPS Kakenhi C project were to associate different colloids: micelles formed by nonionic surfactants, metal clusters and metal oxide nanosheets to graphene oxides and understand the different colloidal assemblies mainly driven by entropic effects. Beyond the fundamental interests of this research project about the understanding of the driving forces leading to the stabilization of the colloidal edifices and possible formation of hierarchical assemblies, GO was successfully used as a template system or supporting phase for the preparation of mesoporous materials and functional materials through their association / combination with metal clusters and metal oxide nanosheets for bactericide and electrochemical applications respectively.
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| Academic Significance and Societal Importance of the Research Achievements |
電気化学および殺菌フィルム用途の製造の範囲において、当社は GO と他のコロイドの結合によって形成されるナノ複合材料を開発しました。 得られたナノ複合材料は、短い TiS2 を含めることによって GO の再積層が制限されるため、GO の電気容量が最大 25% 向上することが明らかになりました。 支持相として使用される酸化グラフェンは、Mo ナノクラスターで均一に修飾することができ、グラム陽性菌 (黄色ブドウ球菌) を除去するための殺菌剤用途で反応性酸化種を生成するナノ複合材料を生成します。
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Report
(4 results)
Research Products
(9 results)
