Abstract
We successfully prepared Au nanoparticles using the modified polyol methods and design of experiments. The desirable crystal structure and particle size of Au nanoparticles with various kinds of polyhedral and spherical shapes as well as various kinds of their morphologies or complete and rough spherical crystal surfaces were experimentally predicted in TEM and XRD measurements according to the theoretical calculation and data. The fine crystal formation of Au nanostructures by modified polyol methods with EG, PVP, and NaBH4 is of great importance to their practical applications. Our research shows that the critical nucleation, growth, and formation of sizes, shapes, and morphologies of Au nanoparticles were experimentally discussed in modified polyol methods and design of experiments. In this context, our particle size calculation can hold the greatest attraction for researchers in the field of nanoparticles.
Highlights
Metal nanoparticles have been widely studied because of their practical applications in electronics and telecommunications, catalysis, energy and environment, health and clinic applications [1,2,3,4,5,6,7]
The unique optical properties of Au, Ag, and Cu single-metal nanoparticles under suitable light excitation are the key foundation of nanoscale electronics and telecommunications [4,5]. In their controlled synthesis, modified polyol methods have been previously discussed in the relationship of Au precursors, reducing agents, protective, and structure-controlling agents in ethylene glycol (EG) or polyEG (PEG) [1,2,3,4,5,6,7]
The common synthetic methods of metal nanoparticles suggest that Au or gold nanoparticles can be effectively synthesized by modified polyol methods [1,2,3,4,5,6,7]
Summary
Metal nanoparticles have been widely studied because of their practical applications in electronics and telecommunications, catalysis, energy and environment, health and clinic applications [1,2,3,4,5,6,7]. The unique optical properties of Au, Ag, and Cu single-metal nanoparticles (electron clouds) under suitable light excitation (formation of an electric dipole) are the key foundation of nanoscale electronics and telecommunications [4,5] In their controlled synthesis, modified polyol methods have been previously discussed in the relationship of Au precursors, reducing agents, protective, and structure-controlling agents in ethylene glycol (EG) or polyEG (PEG) [1,2,3,4,5,6,7]. Their promising applications of functional nanoparticles are used in catalysis and nanobiomedicine [7,8]. Both EG and PEG solvents are effectively used with the addition of a diversity of various reductants to
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