Synergistic inhibition effects of bamboo leaf extract/major components and iodide ion on the corrosion of steel in H<sub>3</sub>PO<sub>4</sub> solution

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Synergistic inhibition effects of bamboo leaf extract/major components and iodide ion on the corrosion of steel in H₃PO₄ solution

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作者：Xianghong Li ; Shuduan Deng ; Hui Fu ; Xiaoguang Xie
关键词：A. Steel ; B. Weight loss ; B. Polarization ; B. EIS ; B. Modelling studies ; C. Acid inhibition
刊名：Corrosion Science
出版年：January, 2014
年：2014
卷：78
期：Complete
页码：29-42
全文大小：4012 K

文摘

The synergistic inhibition effects of the bamboo of Dendrocalmus sinicus Chia et J.L. Sun leaf extract (DSCLE)/major compounds (rutin and orientin) and iodide ion (I^{鈭?/sup>) on the corrosion of cold rolled steel (CRS) in 0.1 M H₃PO₄ solution at 25-60 掳C was studied by weight loss, potentiodynamic polarization curves, electrochemical impedance spectroscopy (EIS) and quantum chemical calculation methods. DSCLE and two major compounds act as moderate inhibitors, and inhibition efficiency follows the order: DSCLE > rutin > orientin. However, incorporation of them with I^{鈭?/sup> significantly improved the inhibition performance, and produced strong synergistic inhibition effect.}}