新型苯并噻嗪衍生物在磷酸溶液中的合成及其对低碳钢的缓蚀作用

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-01-01 DOI:10.4152/pea.2022400103

A. El-khlifi, M. Saadouni, R. Ijoub, A. Oubihi, Y. ElAoufir, S. Boukhriss, M. Ouhssine

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引用次数: 1

摘要

在298 ~ 328 K的温度范围内，采用失重法、EIS法和动电位极化法研究了3-羟基-2-(对苯基)-3,4-二氢- 2h -苯并[b][1,4]噻嗪-3-羧酸乙酯(EHBT)在2 mh3po4磷酸溶液中的缓蚀作用及其在低碳钢表面的吸附。当浓度为5 × 10 -3 m时，所测试的化合物的抑制效率优于88%，极化测量表明所测试的EHBT是一种混合抑制剂。阻垢剂浓度越高，保护效率越高，温度越高，保护效率越低。EHBT在低碳钢表面的吸附服从Langmuir吸附等温线。通过表面扫描电镜(SEM)对EHBT的抑制作用进行了评价。

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Synthesis and Corrosion Inhibition of Mild Steel in a Phosphoric Acid Solution of a Novel Benzothiazine Derivative

Ethyl 3-hydroxy-2-(p-tolyl)-3,4-dihydro-2H-benzo[b][1,4]thiazine-3-carboxylate (EHBT) inhibition effect and its adsorption onto a mild steel surface in phosphoric acid (2 M H 3 PO 4 ) was investigated, at temperatures varying between 298 and 328 K, by weight loss, EIS and potentiodynamic polarization techniques. The tested compound showed an inhibition efficiency that was superior to 88 % for a concentration equal to 5 × 10 -3 M. Polarization measurements indicated that the examined EHBT acted as a mixed inhibitor. The protection efficiency increased with higher inhibitor concentrations and decreased with an increase in temperature. EHBT adsorption onto the mild steel surface obeyed Langmuir adsorption isotherm. EHBT inhibition action was also evaluated by surface SEM images.

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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.