Abstract
This paper describes a simple solvothermal route to synthesize silver nanoplates by reduction of silver nitrate (AgNO3) with N,N-dimethylformamide. In this approach, ferric chloride (FeCl3) servers as the controlling agent, enabling the control over the concentration of free Ag+ ions in the solution. As the concentration of FeCl3 added to the reaction was increased, the morphologies of silver nanostructures evolved from triangular silver nanoplates to hexagonal silver nanoplates. The structures of these nanoplates were characterized by X-ray diffraction, electron microscopy and electron diffraction. A possible mechanism is proposed to interpret the shape-controlled synthesis of silver nanostructures. Finally, our results suggest that this method provides a convenient way to prepare silver nanostructures with different morphologies.
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