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

被引：143
作者：
Li, Xianghong [1 ]
Deng, Shuduan [2 ]
Fu, Hui [1 ]
Xie, Xiaoguang [3 ]
机构：
[1] Southwest Forestry Univ, Fac Sci, Kunming 650224, Peoples R China
[2] Southwest Forestry Univ, Fac Mat Engn, Kunming 650224, Peoples R China
[3] Yunnan Univ, Sch Chem Sci & Technol, Kunming 650091, Peoples R China
来源：
CORROSION SCIENCE | 2014年 / 78卷
关键词：
Steel; Weight loss; Polarization; EIS; Modelling studies; Acid inhibition; COLD-ROLLED STEEL; HYDROCHLORIC-ACID SOLUTIONS; LOW-CARBON STEEL; MILD-STEEL; LEAVES EXTRACT; PLANT-EXTRACTS; GREEN APPROACH; HCL; POLARIZATION; RATES;
D O I：
10.1016/j.corsci.2013.08.025
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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-) on the corrosion of cold rolled steel (CRS) in 0.1 M H3PO4 solution at 25-60 degrees 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- significantly improved the inhibition performance, and produced strong synergistic inhibition effect. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：29 / 42
页数：14
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