Effecting of Zinc Cation on Stability and Corrosion Resistance Zif-67

One of the most challenges for scientists is finding ways to delay the corrosion of metals in corrosive media, which has created economic, security and environmental problems. mofs, which are constructed of the metal ions as a nodes and organic compounds as ligands are known as a new class of nanoporous materials and their properties such as high surface areas, large pore volumes and tunable pore sizes [1, 2]. moreover, the previous reports have shown that zif-67, can be used as effective corrosion inhibitors [3]. in this paper, we present a mixed-metal-organic framework to serve as an efficient corrosion inhibitive filler. cobalt and zinc were used as nodes in the well-known cobalt-based metal-organic zeolite imidazole framework (zif-67). during the one-pot room temperature process, cobalt and zinc solution were added to 2-methyl-imidazole solution simultaneous. after 24 hours, the sedimentation was centrifuged and the resulting crystal zif-67 @10% zn were collected and dried. ultraviolet–visible spectroscopy (uv-visible), fourier transform infrared spectroscopy (ftir), and scanning electron microscope (sem) were used to characterize the doped and undoped zif-67. the activities of corrosion inhibitor of the zif-67 @10% zn was demonstrated by electrochemical impedance spectroscopy. result revealed an increase in the total resistance value (charge transfer resistance + film resistance) of the zif-67@10% zn compared to zif-67 after 96 hours immersion which was approximately 40 %.

Effecting of zinc cation on stability and corrosion resistance ZIF-67

One of the most challenges for scientists is finding ways to delay the corrosion of metals in corrosive media, which has created economic, security and environmental problems. MOFs, which are constructed of the metal ions as a nodes and organic compounds as ligands are known as a new class of nanoporous materials and their properties such as high surface areas, large pore volumes and tunable pore sizes [1, 2]. Moreover, the previous reports have shown that ZIF-67, can be used as effective corrosion inhibitors [3]. In this paper, we present a mixed-metal-organic framework to serve as an efficient corrosion inhibitive filler. Cobalt and zinc were used as nodes in the well-known cobalt-based metal-organic zeolite imidazole framework (ZIF-67). During the one-pot room temperature process, cobalt and zinc solution were added to 2-methyl-imidazole solution simultaneous. After 24 hours, the sedimentation was centrifuged and the resulting crystal ZIF-67 @10% Zn were collected and dried. Ultraviolet–visible spectroscopy (uv-visible), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscope (SEM) were used to characterize the doped and undoped ZIF-67. The activities of corrosion inhibitor of the ZIF-67 @10% Zn was demonstrated by electrochemical impedance spectroscopy. Result revealed an increase in the total resistance value (charge transfer resistance + film resistance) of the ZIF-67@10% Zn compared to ZIF-67 after 96 hours immersion which was approximately 40 %.