| Project/Area Number |
16K14466
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Reaction engineering/Process system
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| Research Institution | Tohoku University |
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Principal Investigator |
Smith Richard 東北大学, 環境科学研究科, 教授 (60261583)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | ナノ粒子 / 超臨界流体 |
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| Outline of Final Research Achievements |
Lead-free soldering nanoparticles are the important materials for luminescent materials or printing type high-density packing. However, it has been challenging to synthesize lead-free particles due to their oxidative properties. In this work, continuous supercritical crystallization process was chosen for the synthesis of SnO2 nanoparticles (SnO2NPs) and Sn-Ag-Cu alloy nanoparticles (SACNPs) because it is considered to be promising as an efficient synthesis method. The influence of experimental conditions, such as reaction temperature, residence time and molar ratio of PVP/Sn was assessed and the grain growth mechanism for SnO2NPs was studied. Then, with the intention of SACNPs formation, adding Ag and Cu precursors as complex metal species and formic acid (FA) as a reducing agent, the influence of reaction conditions on particle formation was studied to elucidate to search for the possibility of synthesizing low melting point solder particles under hydrothermal condition.
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