Metal-Organic Frameworks and Their Applications in Corrosion Protection: A Comprehensive Review

Metal-organic frameworks (mofs) consist of metal ions or clusters coordinated to organic ligands to form one-, two-, or three-dimensional structures[1].mofs, i.e. zif-8, zif-7, uio66, zif-67, with a high specific surface area, good thermo-mechanical and chemical stability are conducted in numerous applications, including gas storage, catalysis, separation, ion exchange, medicine, biological applications, light-emitting devices, environmental science, and technology[2]. recently, mofs are applied in anti-corrosion applications i.e., as filler for reinforcing polymeric composites, coating, nanocontainer of inhibitors, and inhibitors. the conventional fillers' application in the epoxy matrix could recover the barrier properties of the coatings by inhibiting the diffusion of corrosive agents into the coating structure[3].however, they cannot provide long-time and durable corrosion protection properties. therefore, mofs are introduced as a new/practical class of anti-corrosive fillers for solving this issue. owing to the high surface area/prosity, mofs can be used as a new class of nanocontainer with the high adsorption/release capacity of the corrosion inhibitors. due to the ph sensitivity of mof structures, they can intelligently release the encapsulated inhibitors when the defect/crack is created in the coating structure and heal the damaged area through the inhibitive/barrier film production[4]. this paper attempts to highlight the importance of mof structures for application as advanced nano-filler for inclusion into polymeric composites for achieving self-healing anti-corrosion ability. a particular emphasis was explicitly placed on the anti-corrosion properties of epoxy/mof coatings.

Metal-organic frameworks and their applications in corrosion protection: A comprehensive review

Metal-organic frameworks (MOFs) consist of metal ions or clusters coordinated to organic ligands to form one-, two-, or three-dimensional structures[1].MOFs, i.e. ZIF-8, ZIF-7, UiO66, ZIF-67, with a high specific surface area, good thermo-mechanical and chemical stability are conducted in numerous applications, including gas storage, catalysis, separation, ion exchange, medicine, biological applications, light-emitting devices, environmental science, and technology[2]. Recently, MOFs are applied in anti-corrosion applications i.e., as filler for reinforcing polymeric composites, coating, nanocontainer of inhibitors, and inhibitors. The conventional fillers' application in the epoxy matrix could recover the barrier properties of the coatings by inhibiting the diffusion of corrosive agents into the coating structure[3].However, they cannot provide long-time and durable corrosion protection properties. Therefore, MOFs are introduced as a new/practical class of anti-corrosive fillers for solving this issue. Owing to the high surface area/prosity, MOFs can be used as a new class of nanocontainer with the high adsorption/release capacity of the corrosion inhibitors. Due to the pH sensitivity of MOF structures, they can intelligently release the encapsulated inhibitors when the defect/crack is created in the coating structure and heal the damaged area through the inhibitive/barrier film production[4]. This paper attempts to highlight the importance of MOF structures for application as advanced nano-filler for inclusion into polymeric composites for achieving self-healing anti-corrosion ability. A particular emphasis was explicitly placed on the anti-corrosion properties of epoxy/MOF coatings.