Superhydrophobicity: Is it really better than hydrophobicity on anti-corrosion?

Carbon steel corrosion: a review of key surface properties and characterization methods

“…46,47 For corrosion protection, it is necessary that a steel surface has little contact with corrosive media and a surface must have hydrophobic characteristics that can be developed either by increasing the roughness of a surface, which has low surface energy or by low surface energy material coatings on a rough surface. However, a study by Yu et al 48 showed that superhydrophobic surfaces cannot always prevent corrosion. Certain rolling characteristics should be maintained.…”

Self-cleaning transparent superhydrophobic coatings through simple sol–gel processing of fluoroalkylsilane

“…The dual-scale hierarchical micro/nanostructure and low surface energy due to the secreted wax Page 3 of 28 A c c e p t e d M a n u s c r i p t material found on lotus leaves has encouraged material scientists to build artificial robust water-repellent surfaces [7]. The industrial applications of such surfaces are not limited to self-cleaning; they also include potential liquid separation [8], anti-corrosive [9], anti-fog [10], anti-biofouling [11], low-drag applications [12], and the list is still growing [13].…”

Superhydrophobic surfaces for corrosion protection: a review of recent progresses and future directions

“…Yu et al compared the TiO 2 /ZnO structures with hydrophobic and superhydrophobic surfaces. 120 The high porosity and good self-cleaning performance of superhydrophobic TiO 2 /ZnO layer showed better anticorrosive capability in the atmospheric environment. However, if immersed, the porous superhydrophobic layer was more vulnerable to water ingress which led to lower anticorrosive performance than that of a hydrophobic layer.…”