Inhibition Action and Adsorption Behavior of Green Inhibitor Sodium Carboxymethyl Cellulose on Copper

被引：0
作者：
Li, Mei-Ming [1 ]
Xu, Qun-Jie [1 ]
Han, Jie [1 ]
Yun, Hong [1 ]
Min, YuLin [1 ]
机构：
[1] Shanghai Univ Elect Power, Shanghai Key Lab Mat Protect & Adv Mat Elect Powe, Shanghai 200090, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2015年 / 10卷 / 11期
关键词：
organic coatings; copper; AFM; polarization; alkaline corrosion; MILD-STEEL CORROSION; CARBON-STEEL; CO2; CORROSION; ACID; DERIVATIVES; RESISTANCE;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this paper, Sodium carboxymethyl cellulose (Na-CMC), as a new green corrosion inhibitor, has been investigated. The inhibition behavior of Na-CMC on copper in simulated cooling water was examined by EIS and polarization measurements. The results showed that the best inhibition efficiency could reach to 83.34% when the concentration of Na-CMC is 5mg/L at 20 degrees C. The computing result of thermodynamic parameters (such as Delta G and Delta H) indicated that the adsorption of Na-CMC on the copper surface obeyed Langmuir's adsorption isotherm and was a typical of chemisorption. Quantum chemical calculations revealed that Na-CMC could be adsorbed on copper by Carboxyl group, which may be the suitable adsorption site, and its average adsorption energy was -60.823KJ/ mol.
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页码：9028 / 9041
页数：14
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