Superhydrophobic Surface and Lubricant‐Infused Surface: Implementing Two Extremes on Electrodeposited NiTiO₂ Surface to Drive Optimal Wettability Regimes for Droplets’ Multifunctional Behaviors

Abstract

Lubricant‐infused surfaces (LISs) inspired by Nepenthes pitcher plants due to its continuous and homogeneous slippery surface have garnered great attention, which results in high durability, anti‐corrosion performance, self‐healing property, and anti‐fouling properties. Herein, a cooperative‐responsive slippery surface based on chemically patterned myristic acid (MA)‐modified NiTiO2 superhydrophobic surface (SHPBS) is fabricated by an electrodeposition method. LIS exhibits long‐term durability with lowest corrosion rate (0.10153 mpy) than MA‐modified NiTiO2 (0.12922 mpy) and NiTiO2 (0.226135 mpy). Furthermore, theoretical investigations of phase‐field simulation with a droplet impact on artificially patterned surfaces with rebound dynamics of liquid droplet to its equilibrium state correspond with SHPBSs and LIS, having contact angle (161° and 116°) and hydrophobicity index α s (−0.8822 and −0.4329), respectively. Herein, multifunctional applications are incorporated on surface without compromising its corrosion performance, and a computational model is involved to understand the mechanisms of two differing applications. Experimental results also quantitatively agree with the calculated wettability parameters. The work not only unveils the close attention for lubricant selection to create long‐lasting LIS but also provides new insights into designing next‐generation multifunctional surfaces, which could be developed for various applications.

Anti-corrosion properties of bio-inspired surfaces: a systematic review of recent research developments

“…15(a)). [185][186][187][188] In the organogel, the silicone oil layer on the surface acts as a barrier during the initial impregnation of the corrosion system, preventing the penetration of external water molecules into the coating. When the thin silicone oil layer is destroyed, water molecules reach the substrate surface through some unfilled voids, leading to local corrosion.…”

A Review on Applications of Superhydrophobic Materials in Civil Engineering

“…The SHPB surfaces showed mechanical durability and chemical stability in extreme environmental conditions. [ 192–194 ] Hussain et al [ 192 ] fabricated SHPB surface on copper substrate through electrodeposition method. The fabricated SHPB surface possessed long‐term stability and durability due to the unique hierarchical micro/nanostructures.…”

Quantitative surface free energy with micro-colloid probe pairs

“…[4][5][6] Surfaces that can morph to be both super-hydrophilic and superhydrophobic create new opportunities for surface-tensioncontrolled diagnostic devices and cell biology. [7][8][9][10] Development and validation of standardized, quantitative methods to reliably measure surface properties at relevant length scales remains an industry requirement to account for important contact phenomena such as adhesion and friction. 11 However, standardization is impeded by the lack of an unambiguous link between the nanoscale and macroscale SFE.…”