Controllable fabrication of superhydrophobic alloys surface on copper substrate for self-cleaning, anti-icing, anti-corrosion and anti-wear performance

Superhydrophobic CuZns and AuZn3 alloys surface has been fabricated on copper substrate via electrochemical treatment, electroless chemical deposition and annealing. The as-prepared surfaces show outstanding super-hydrophobicity with WCA of 170 degrees and WSA about 0 degrees inexistence any organic modification. The annealing process which gives rise to the generation of alloys and ZnO, and the formation of micro-/nano- binary architectures are important for superhydrophobicity. Novel thing is that this method does not need any organic solvent as superhydrophobic layer. The as-prepared superhydrophobic CuZn5 and AuZn3 alloys surfaces display self-cleaning, anti-icing performance, corrosion and wear resistance and this may offer significant potential values for industrialized applications.