In colloidal synthesis of inorganic nanoparticles, reliable control of their size and size distribution is one of the most critical aspects of fine-tuning their various properties. The ability to manufacture sub 2-nm ultra-small particles is of interest. Here, we present a novel induction heating method to provide rapid heating rate for colloidal nanoparticle synthesis. We show that with induction heating method can produce comparable outcome in particle size dispersion to the widely used hot injection method with some distinct advantages. The preparation of mono-dispersed ultra-small nanoparticles (InP, CdSe, Ge, Fe, Mn, MnFe particles) is demonstrated with ability to fine-tune its size. The continuous production of nanomaterials in a  small laboratory scale is also established! In this work, we investigate how extreme high heating rate, precursor reaction mechanism, solvent viscosity and other factors affect the nucleation and growth kinetics of the synthesis.<br/>

Rapid colloidal nanoparticle synthesis

255th National Meeting (2018)

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