Gemini Cationic Schiff Bases and Their Metal Complexes in Preventing Carbon Steel Dissolution in Acidic Medium


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The protection of carbon steel in the presence of three cationic Schiff bases and their copper and cobalt complexes in 0.5 M H2SO4 was investigated in terms of corrosion inhibition efficiency using weight loss, potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) methods. The results showed high corrosion inhibition efficiency of the inhibitors and their metal complexes. The inhibition efficiency was raised by increasing the inhibitors concentration. From polarization curves, the inhibitors act as mixed type ones. The EIS spectra exhibit a large capacitive loop at high frequencies followed by a large inductive one at low frequencies.

作者简介

Sadeek Sadeek

Faculty of Science—Zagazig University

Email: nabelnegm@hotmail.com
埃及, Zagazig

Ahmed El Farrargy

Faculty of Science—Zagazig University

Email: nabelnegm@hotmail.com
埃及, Zagazig

Mohamed Abd El Raouf

Egyptian Petroleum Research Institute

Email: nabelnegm@hotmail.com
埃及, Nasr City, Cairo

Nabel Negm

Egyptian Petroleum Research Institute

编辑信件的主要联系方式.
Email: nabelnegm@hotmail.com
埃及, Nasr City, Cairo

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