2013 Fiscal Year Final Research Report
Precise Synthesis of Metal-Hexacyanoferrate Nanoparticles: An Approach to Development of Mixed-Valence Functional Materials
| Project/Area Number |
23550223
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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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| Research Field |
Inorganic industrial materials
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| Research Institution | Chiba University |
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Principal Investigator |
SHIBA Fumiyuki 千葉大学, 融合科学研究科(研究院), 准教授 (10312969)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 単分散ナノ粒子 / プルシアンブルー / 無機材料合成 / 液相反応 / 還元反応 / 錯体貯蔵 / 連続添加 |
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| Research Abstract |
Synthesis procedures for monodipserse particles of metal-hexacyanoferrates, which are also called as Prussian blue and its analogues, have been investigated to achieve precise syntheses of them. Prussian blue is a mixed-valence compound that consists of both Fe(II) and Fe(III) and is thus expected as a kind of functional materials. In this study, separation of the growth step from the nucleation period, which is an essential requirement for monodisperse particle formation, is achieved through constructing reaction systems that are based on three sorts of strategy including generation of the reaction species by reduction reaction, release of the metal ion from its citrate complex, and continuous addition of the reaction solutions from outside of the reaction vessel. Size, shape, and internal structure of monodisperse Prussian blue and its analogues nanoparticles are fairly controlled by the reaction procedures.
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