Novel Synthesis Method of Core Shell Oxide Particles by Flame Spray Pyrolysis

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420155
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Keio University
• Principal Investigator: Yokomori Takeshi 慶應義塾大学, 理工学部(矢上), 准教授 (90453539)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 燃焼合成 / 粒子合成 / 噴霧燃焼法 / コアシェル粒子

Outline of Final Research Achievements

The motivation of this research is to figure out the possibility to synthesize core shell particles by using the flame spray pyrolysis and clarify the formation mechanism of those core shell particles. Many structural particles were produced under various synthesis conditions, especially the ideal core shell structure was obtained under the high flame temperature and the certain concentration of the precursor solution. According to EDX and XRD analysis of the core shell particles, core is composed of complex oxide from precursor solutes, and shell is composed of SiO2. Based on the phase diagram, it is inferred that the formation of core shell structure was caused by the separation of each component at the liquid phase state in the synthesis route.

Free Research Field

燃焼工学