Metal Functionalized Organic Compounds/Metal-Organic Frameworks (MOFs) as Corrosion Inhibitors

Abstract

MOF (metal-organic-framework) are nanostructures with high specific surface area, good morphology such as nano cages which makes it easily tunable for fabrication of corrosion inhibitors and its adsorption mechanism on metals. Due to their special structures, MOFs have attracted the attention of researchers from different areas ranging from nano-container fabrications, biological activities, drug delivery, catalysis to corrosion inhibition. Currently, the MOFs−based corrosion inhibitors are widely applied to protect different metals such as steel, copper, aluminum and magnesium from the aggressive corrosive environment. This chapter therefore, focused on the discussions relating to MOFs as corrosion inhibitors for different metals in various corrosive environments. This is because MOFs as corrosion inhibitors are discovered to be efficient at low concentrations, thermodynamically stable and environmental−friendly. In addition to this, MOF shows excellent solubility in the aqueous phase, thermal stability and good adsorption on the metal surfaces. Factors that influence their corrosion inhibition performances such as chemical structure, reactivity, and adsorption properties are equally explored. The corrosion inhibition mechanisms and development tendencies relating to these compounds are comprehensively put together. Thus provides an overview of the new trend in the use of MOFs for corrosion inhibition of metals.