Superhydrophobic pure silver surface with flower-like structures by a facile galvanic exchange reaction with [Ag(NH3)(2)]OH

Superhydrophobic pure silver film composed of flower-like microstructures built by interconnected silver nanoplates on a copper plate without any modi. cation was prepared by a facile galvanic exchange reaction between the aqueous [Ag(NH3)(2)]OH and the copper plate, giving rise to a contact angle as high as 157 degrees.