Magnetic inductive heating provides an alternative methodology to hot injection approach in nanoparticle synthesis. In this work, this methodology is applied to synthesis of Germanium nanoparticle. Germanium nanoparticles are useful as an anode in lithium ion batteries with high capacity and excellent cycling stability. Inductive heating provides rapid temperature raise that is required for nucleation and growth of nanoparticles for colloidal synthesis. We demonstrate synthesis of Germanium nanoparticles using the mixture of GeI2 and GeI4 as a precursor and oleylamine as a solvent with in few seconds (5sec,10sec). The size- controlled synthesis can be achieved with the change in the concentration of precursor. Here, oleylamine acts as a solvent, reducing agent and binding ligand as well. This method is considered safer because it avoids the use of strong reducing agents (NaBH4, LiAlH4) and etching agents like (HF). The synthesized nanoparticles are characterized by TEM, XRD, UV-Visible spectroscopy, Raman Spectroscopy and FTIR spectroscopy.

Synthesis of germanium nanoparticles by rapid inductive heating

2019 Spring National Meeting

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