J. A. Selvi, M. Arthanareeswari, P. Kamaraj, T. Malini, V. Elumalai, S. Revathi, N. Subasree
{"title":"一种环保缓蚀剂:夹竹桃叶提取物在酸性介质中对碳钢的缓蚀作用","authors":"J. A. Selvi, M. Arthanareeswari, P. Kamaraj, T. Malini, V. Elumalai, S. Revathi, N. Subasree","doi":"10.4152/pea.202006387","DOIUrl":null,"url":null,"abstract":"The inhibitory activity of ethanol extract of Nerium oleander leaf (NOLE) on carbon steel corrosion in 0.5 M and 1.0 M of hydrochloric acid solutions was studied by weight loss method and electrochemical techniques. The inh ibition efficiency (ηw) increased with an increase in the concentration of NOLE and i n temperature. Polarisation curves indicated that NOLE acts as a mixed type of inhibit or. The changes in charge transfer resistance (Rt) with increasing inhibitor (i.e. NOLE) concentrati on assured the adsorption of the inhibitor onto the metal surface. The results of ηw, ηp (inhibition efficiency obtained from polarisation study) and ηR (inhibition efficiency obtained from impedance analysis) are in par with each other. Sur face morphology study uncovered the coating of the inhibitor molecule on the metal surface. The phenomenon of physical adsorption has been established based on the inhibi t on efficiency of the inhibitor with change in temperature.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Corrosion Mitigation by an Eco-Friendly Inhibitor: Nerium Oleander Leaf Extract on Carbon Steel in an Acidic Medium\",\"authors\":\"J. A. Selvi, M. Arthanareeswari, P. Kamaraj, T. Malini, V. Elumalai, S. Revathi, N. Subasree\",\"doi\":\"10.4152/pea.202006387\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The inhibitory activity of ethanol extract of Nerium oleander leaf (NOLE) on carbon steel corrosion in 0.5 M and 1.0 M of hydrochloric acid solutions was studied by weight loss method and electrochemical techniques. The inh ibition efficiency (ηw) increased with an increase in the concentration of NOLE and i n temperature. Polarisation curves indicated that NOLE acts as a mixed type of inhibit or. The changes in charge transfer resistance (Rt) with increasing inhibitor (i.e. NOLE) concentrati on assured the adsorption of the inhibitor onto the metal surface. The results of ηw, ηp (inhibition efficiency obtained from polarisation study) and ηR (inhibition efficiency obtained from impedance analysis) are in par with each other. Sur face morphology study uncovered the coating of the inhibitor molecule on the metal surface. The phenomenon of physical adsorption has been established based on the inhibi t on efficiency of the inhibitor with change in temperature.\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2020-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4152/pea.202006387\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4152/pea.202006387","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Corrosion Mitigation by an Eco-Friendly Inhibitor: Nerium Oleander Leaf Extract on Carbon Steel in an Acidic Medium
The inhibitory activity of ethanol extract of Nerium oleander leaf (NOLE) on carbon steel corrosion in 0.5 M and 1.0 M of hydrochloric acid solutions was studied by weight loss method and electrochemical techniques. The inh ibition efficiency (ηw) increased with an increase in the concentration of NOLE and i n temperature. Polarisation curves indicated that NOLE acts as a mixed type of inhibit or. The changes in charge transfer resistance (Rt) with increasing inhibitor (i.e. NOLE) concentrati on assured the adsorption of the inhibitor onto the metal surface. The results of ηw, ηp (inhibition efficiency obtained from polarisation study) and ηR (inhibition efficiency obtained from impedance analysis) are in par with each other. Sur face morphology study uncovered the coating of the inhibitor molecule on the metal surface. The phenomenon of physical adsorption has been established based on the inhibi t on efficiency of the inhibitor with change in temperature.
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.
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