Formation mechanism of metal embedded amorphous silicate nanoparticles by induction thermal plasmas

26th Symposium on Plasma Sciences for Materials

物理学;材料科学

Tanaka, M.^1 ; Noda, J.^1 ; Watanabe, T.^2 ; Matsuno, J.^3 ; Tsuchiyama, A.^3

Department Environmental Chemistry and Engineering, Tokyo Institute of Technology, Yokohama, Japan^1

Department Chemical Engineering, Kyushu University, Fukuoka, Japan^2

Department Geology and Mineralogy, Kyoto University, Kyoto, Japan^3

关键词: Amorphous silicates;    Embedded nanoparticles;    Formation mechanism;    Induction thermal plasma;    Nucleation temperature;    Zn nanoparticles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/518/1/012025/pdf
DOI  :  10.1088/1742-6596/518/1/012025

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The purpose of this paper was to synthesize metal embedded amorphous silicate nanoparticles by induction thermal plasmas. Powder of Fe, Ni, Sn, and Zn were used as precursor as well as SiO2 and MgO. In the case of Fe, Ni, and Sn, metal embedded nanoparticles were successfully synthesized. While most of Zn nanoparticles were attached on the surface of the amorphous silicate nanoparticles. Internal rate of each metal in the synthesized nanoparticles and nucleation temperature were evaluated to understand the formation mechanism of the metal embedded amorphous silicate nanoparticles. Results indicated that the relationship between the nucleation temperature of silicon and the melting temperature of each metal has important role on the metal embedded nanoparticles formation.