Smart corrosion inhibitors for controlled release: a review

Abstract

Metal corrosion has been one of the most urgent problems bringing about great economic loss and life threats worldwide. Corrosion inhibitors can prevent metal from corrosion when directly added to corrosive media, which is a low-cost and efficient strategy towards corrosion protection. However, the corrosion protection ability cannot be durable without continuous additions of corrosion inhibitors. Micro/nano-containers encapsulated with corrosion inhibitors offer promising opportunities for delaying the corrosion process and prolonging the service period, regarded as smart corrosion inhibitors that can respond to stimuli spontaneously and release on demand. The review focuses on the diverse ambient stimuli and actively responsive mechanisms of smart corrosion inhibitors. Furthermore, the present drawbacks and underexplored possibilities of current research studies are pointed out, and future perspectives are prospected for smart corrosion inhibitor applications.

Porous Mg–Zn–Ca scaffolds for bone repair: a study on microstructure, mechanical properties and in vitro degradation behavior

“…Degradation of Mg-based alloys is always accompanied by hydrogen evolution, as shown in Eq. ( 1 ) [ 27 , 28 ]. …”

Development and experimental verification of innovative corrosion protection epoxy coatings for steel

“…In recent years, considerable progress has been made in the development of new corrosion-protection coatings and the formulation of various corrosion-resistant alloys (Pande and Parikh, 2013; Hasannejad et al , 2013; Suleiman et al , 2013; Wang et al , 2013; Kouhi et al , 2013). Some new developments provide effective means of reducing the damaging effects of corrosion on steel (Liu et al , 2020; Zhou et al , 2023a; Fakhri et al , 2023; Garcia-Cabezon et al , 2020; Gautam et al , 2022; Kaya et al , 2023).…”

“…They also observed that a water-based epoxy coating impregnated with modified TiO 2 containers exhibited enhanced self-healing characteristics. The use of smart corrosion inhibitors comprising micro/ nanocontainers has been reported to be highly effective compared with traditional corrosion inhibitors from the standpoint of long-term corrosion protection (Zhou et al, 2023a). Zeng et al (2022) developed a superhydrophobic coating that incorporated epoxy, silica nanoparticles and low-surface-energy siloxane.…”

Experimental Study of Corrosion Inhibition of Carbon Steel in Acidic Environment Using Natural Guar Gum

“…Carbon steel is extensively used for various applications due to excellent mechanical properties and low cost. However, carbon steel is highly susceptible to electrochemical deterioration when exposed to acidic environment and leads to catastrophic failure [1]- [3]. Corrosion inhibitor is an extensive approach to mitigate internal corrosion which generally occurs in hollow shapes such as oil and gas pipelines and storage containers.…”