| Synthesis of Surface-Modified Magnetic Nanoparticles and corrosion resistance of metals |
| کد مقاله : 1051-ICOC |
| نویسندگان |
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میثم اکبری1، Saeed Kakaei *2، Elham Sattarzadeh Khameneh2، leila Koopaei2 1دانشجو 2Radiation Applications Research School, Nuclear Science and Technology Research Institute, Tehran, Iran |
| چکیده مقاله |
| In this study, a new eco-friendly corrosion inhibitor based on surface-modified magnetic iron oxide nanoparticles was synthesized and evaluated. The nanoparticles were first functionalized with amino groups, followed by coupling with a newly prepared chelating agent containing nitrogen, sulfur, and oxygen heteroatoms. The resulting nanocomplex was applied as a corrosion-inhibiting coating on carbon steel exposed to 1 M hydrochloric acid. Electrochemical impedance spectroscopy (EIS) was performed at inhibitor concentrations of 25, 50, 75, and 100 ppm to assess the protective performance. Nyquist plots revealed a gradual increase in charge-transfer resistance with increasing inhibitor concentration, indicating improved surface coverage and blocking of active corrosion sites. The highest inhibition efficiency occurred at 100 ppm, where the nanocomplex significantly enhanced the charge-transfer resistance and reduced the interfacial capacitance, confirming the formation of a compact protective layer on the metal surface. Overall, the results demonstrate that the synthesized iron-oxide-based nanocomplex provides effective corrosion protection in acidic media while offering advantages such as biocompatibility and environmental safety, making it a promising alternative to conventional chemical inhibitors. |
| کلیدواژه ها |
| Magnetic Nanoparticles, Chelator, Corrosion |
| وضعیت: پذیرفته شده |