意大利蜡菊对模拟酸雨溶液中铜腐蚀的影响

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2020-01-01 DOI:10.15255/cabeq.2019.1614

Z. Pilić, Ivana Martinović

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引用次数: 7

摘要

采用电化学技术研究了意大利蜡菊提取物(HI)对模拟酸雨中铜的缓蚀作用。结果表明，随着HI萃取物浓度的增加，缓蚀效果有所提高。假设抑制过程是通过萃取物在金属表面的吸附发生的。热力学数据显示为物理吸附，遵循Freundlich等温线。研究了温度对铜腐蚀的影响。活化能的值证实了萃取物分子在铜表面的物理吸附。原子吸收光谱法测定的Cu离子释放到溶液中的浓度与电化学结果一致。

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Effect of Helichrysum italicum on the Corrosion of Copper in Simulated Acid Rain Solution

The inhibition of copper corrosion by Helichrysum italicum extract (HI) in simulated acid rain was investigated using electrochemical techniques. Results indicate an increase in corrosion inhibition efficiency with the HI extract concentration. The inhibitive process was assumed to occur via adsorption of the extract on the metal surface. The thermodynamic data indicated physical adsorption and followed the Freundlich isotherm. The effect of temperature on the copper corrosion was studied. The value of the activation energy confirmed physisorption of extract molecules on the copper surface. The concentration of Cu ions released into solution, measured by atomic absorption spectrometry, was in accordance with the electrochemical results.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.