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Corrosion inhibition effect of Artemisia Halodendron leaves extract (AHLE) on mild steel in 1 M HCl medium has been investigated by electrochemical potentiodynamic polarization measurements and electrochemical impedance spectroscopy (EIS) techniques. The polarization studies showed that AHLE acts as mixed-type inhibitor. The Nyquist plots showed that on increasing AHLE concentration, increases charge transfer resistance and decrease double layer capacitance. AHLE obeys the Langmuir adsorption isotherm. The corrosion inhibition efficiency of mild steel in hydrochloric acid solution by AHLE was discussed in terms of adsorption of protonated species and formed the protective film.
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Cang et al. (2013) studied this question.
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