Study of the corrosion resistance and loading capacity of superhydrophobic meshes fabricated by spraying method

Superhydrophobic metal mesh has been fabricated by a simple spraying method. The processes of decreasing surface free energy and increasing surface roughness have been accomplished in one step via the reaction of metal salts and alkanethiols. The loading capacity of these superhydrophobic meshes was performed. The largest loading capacity appeared with pore size of 90 μm. Furthermore, the stability and the corrosion resistance of the copper mesh were investigated. The surfaces remain superhydrophobic in acidic and basic solution over a wide range of pH value (from 1 to 13). The polarization current is reduced by two orders of magnitude with the superhydrophobic coating, which means the coating can provide protection for the substrate.