Thermally stable Metal-silica Nanoparticles Synthesized
Thermally stable Metal-silica Nanoparticles Synthesized
  • reporter Kim Min-gyu
  • 승인 2019.06.13 13:25
  • 댓글 0
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▲Gold-silica nanoparticles
▲Gold-silica nanoparticles

The research team led by professor Lee In-su (CHEM) developed a thermally stable eccentric metal-silica core-shell nanoparticles synthesis method that can control core positions of nanoparticles without having to change the size of the particles.
Hybrid nanoparticles synthesized with metal can be utilized in various fields such as manufacturing drugs that can treat incurable diseases or catalysts that control reaction turning carbon monoxide to carbon dioxide. Among them, metal-silica core-shell nanoparticles, having various configurations, contains huge availability. Synthesizing core-shell structure of hybrid nanoparticles is related deeply with particle’s optics, magnetics, adsorption, and catalysts, and synthesis method that can control core positions with thermal stability has not been discovered.
Research team developed a technology that allows accurate control of the location of the core through the separation of the phase as oxidation and reduction are repeated by incorporating calcium ions into the ideal silica-based solid-solid interface. Adjusting the amount of calcium ion automatically adjusts the location of the core to form a variety of structures. This technology is attracting attention as it allows the location of nanoparticles to be adjusted in the center of the core without changing the size of the nanoparticles and succeeding in controlling the thermal-inducing movement phenomenon of the metal core.


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