Spectroscopic, Electrochemical and Quantum Chemical Studies for Adsorption Action of Polyethylene Oxide on Copper Surface in NaCl Solution

被引：9
作者：
El-Haddad, Mahmoud N. [1 ]
机构：
[1] Mansoura Univ, Fac Sci, Chem Dept, Mansoura 35516, Egypt
来源：
ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS | 2020年 / 234卷 / 11-12期
关键词：
AAS; ATR-FTIR; Copper; DFT calculations; EDX; EFM; PEO; SEM; MILD-STEEL CORROSION; CARBON-STEEL; INHIBITION; ACID; DERIVATIVES; BEHAVIOR; PROTECTION; ALUMINUM; CHITOSAN; ADDITIVES;
D O I：
10.1515/zpch-2019-1390
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The adsorption action of polyethylene oxide (PEO) on copper surface in 3.5 wt.% NaCl solution was tested using electrochemical frequency modulation (EFM), atomic absorption spectrometry (AAS), UV- visible spectrometry and the morphology of copper surface was investigated by attenuated total reflectance spectroscopy (ATR-FTIR), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) techniques. Results obtained show that PEO is effective in preventing the corrosion of copper in NaCl solution. The adsorption of PEO onto copper surface was found to follow Langmuir isotherm model. ATR-FTIR, SEM and EDX spectroscopy techniques confirmed the adsorption of protective film of PEO on copper surface. Further, quantum chemical calculations were in agreement with inhibition efficiency (%I) of PEO that were obtained experimentally.
引用
收藏
页码：1835 / 1851
页数：17
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