{"title":"Experimental and theoretical investigations on synergistic effect of surfactants as corrosion inhibitor on steel in acid medium","authors":"Jia-nan Fan, Heng Yang, Hanwen Zhang, Peng Han, Haobo Yu, Lei Zhang","doi":"10.1680/jsuin.22.01091","DOIUrl":null,"url":null,"abstract":"The inhibition performances of inhibitor C8TAB-MP (a mixture of Octyltrimethylammonium bromide (C8TAB) and 4-mercaptopyridine (4MP)), C8TAB and 4MP toward A3 steel in 0.5 M hydrochloric acid solution were studied at 25 °C. The studied inhibitors worked in a hybrid form, mainly controlling the cathodic reaction. Their adsorption follows the Langmuir isotherm, and the compositional combination is superior to the sum of their individual properties. The highest inhibition efficiency of C8TAB-MP was 99.4% at a concentration of 200 mg L−1. Surface morphologies of samples were obtained from AFM tests. Synergistic effect between C8TAB and 4MP is due to the C8TAB molecules donating electrons and the 4MP molecules accepting electrons.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":" ","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Innovations","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1680/jsuin.22.01091","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The inhibition performances of inhibitor C8TAB-MP (a mixture of Octyltrimethylammonium bromide (C8TAB) and 4-mercaptopyridine (4MP)), C8TAB and 4MP toward A3 steel in 0.5 M hydrochloric acid solution were studied at 25 °C. The studied inhibitors worked in a hybrid form, mainly controlling the cathodic reaction. Their adsorption follows the Langmuir isotherm, and the compositional combination is superior to the sum of their individual properties. The highest inhibition efficiency of C8TAB-MP was 99.4% at a concentration of 200 mg L−1. Surface morphologies of samples were obtained from AFM tests. Synergistic effect between C8TAB and 4MP is due to the C8TAB molecules donating electrons and the 4MP molecules accepting electrons.
Surface InnovationsCHEMISTRY, PHYSICALMATERIALS SCIENCE, COAT-MATERIALS SCIENCE, COATINGS & FILMS
CiteScore
5.80
自引率
22.90%
发文量
66
期刊介绍：
The material innovations on surfaces, combined with understanding and manipulation of physics and chemistry of functional surfaces and coatings, have exploded in the past decade at an incredibly rapid pace.
Superhydrophobicity, superhydrophlicity, self-cleaning, self-healing, anti-fouling, anti-bacterial, etc., have become important fundamental topics of surface science research community driven by curiosity of physics, chemistry, and biology of interaction phenomenon at surfaces and their enormous potential in practical applications. Materials having controlled-functionality surfaces and coatings are important to the manufacturing of new products for environmental control, liquid manipulation, nanotechnological advances, biomedical engineering, pharmacy, biotechnology, and many others, and are part of the most promising technological innovations of the twenty-first century.
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