Methods of nanostructure formation and shape selection

摘要

Methods for forming nanostructures of various shapes are disclosed. Nanocubes, nanowires, nanopyramids and multiply twinned particles of silver may by formed by combining a solution of silver nitrate in ethylene glycol with a solution of poly(vinyl pyrrolidone) in ethylene glycol. Hollow nanostructures may be formed by reacting a solution of solid nanostructures comprising one of a first metal and a first metal alloy with a metal salt that can be reduced by the first metal or first metal alloy. Nanostructures comprising a core with at least one nanoshell may be formed by plating a nanostructure and reacting the plating with a metal salt.

主权项

1. A method of preparing hollow nanostructures, the method comprising:
obtaining a solution of solid nanostructures, the solid nanostructures comprising a first metal or first metal alloy; selecting a salt of a second metal, wherein the first metal or first metal alloy can reduce the salt; and blending the salt with the solution of solid nanostructures to enable the formation of hollow nanostructures, wherein the hollow nanostructures comprise at least one of the first metal or first metal alloy and the second metal.