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We previously reported that trapezoid, plate-like and mono- or bi-tetrahedral Ag-flag structures are evolved from side facets of Ag-nanorod (NR) seeds when AgNO 3 was reduced in N,N-dimethylformamide (DMF) in the presence of polyvinylpyrrolidone (PVP). In this study, we examined what shapes are grown by further growth of bitetrahedral flags based on TEM and SEM observations. For this purpose,...
Effects of gas bubbling were studied for synthesis of silver nanostructures from a mixture of AgNO 3 /NaCl/poly(vinylpyrrolidone) (PVP) in ethylene glycol (EG). Monodispersed silver nanowires were synthesized under oil-bath heating in high yield (>90% without isolation) using bubbling of air through a reagent solution from ca. 20°C to the boiling point of EG (198°C) for 20min. On the other...
Branched Pt nanoparticles with nanometer sizes have been successfully synthesized by reduction of H 2 PtCl 6 ·6H 2 O precursor in ethylene glycol (EG) in the presence of small amounts of NaNO 3 and PVP. Morphologies of the Pt nanoparticles can be systematically evolved from regular octahedron, and triangular plate via tri-pod, penta-pod, and octa-pod to multi-pod needle-like...
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