Zhengyi Xu , Pengyuan Zhang , Bo Zhang , Bing Lei , Zhiyuan Feng , Junyi Wang , Yawei Shao , Guozhe Meng , Yanqiu Wang , Fuhui Wang
{"title":"La3+对X70管线钢氢渗透演化动力学的影响","authors":"Zhengyi Xu , Pengyuan Zhang , Bo Zhang , Bing Lei , Zhiyuan Feng , Junyi Wang , Yawei Shao , Guozhe Meng , Yanqiu Wang , Fuhui Wang","doi":"10.1016/j.jpse.2022.100107","DOIUrl":null,"url":null,"abstract":"<div><p>The inhibitory effect of La<sup>3+</sup> on the hydrogen permeation of X70 pipeline steel was investigated via steady-state hydrogen permeation current (<em>i</em><sub>∞</sub>) through electrochemical hydrogen permeation tests. The experimental permeation data were fitted with a constant concentration model and Electrochemical Impedance Spectroscopy (EIS) tests were conducted to characterize the activity of Hydrogen Evolution Reaction (HER) after the optimization of electrochemically active surface area. Additionally, the kinetics of HER and the adsorption/desorption process is calculated by Iyer-Pickering-Zamanzadeh (IPZ) and surface effect models, of which the results demonstrate that the La<sup>3+</sup> in the corrosion products could effectively reduce the rate of Volmer reaction and hydrogen adsorption process, and accelerate the process of hydrogen atom desorption, thus leading to the remarkable decrease in <em>C</em><sub>0</sub>.</p></div>","PeriodicalId":100824,"journal":{"name":"Journal of Pipeline Science and Engineering","volume":"3 2","pages":"Article 100107"},"PeriodicalIF":4.8000,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Effects of La3+ on the hydrogen permeation and evolution kinetics in X70 pipeline steel\",\"authors\":\"Zhengyi Xu , Pengyuan Zhang , Bo Zhang , Bing Lei , Zhiyuan Feng , Junyi Wang , Yawei Shao , Guozhe Meng , Yanqiu Wang , Fuhui Wang\",\"doi\":\"10.1016/j.jpse.2022.100107\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The inhibitory effect of La<sup>3+</sup> on the hydrogen permeation of X70 pipeline steel was investigated via steady-state hydrogen permeation current (<em>i</em><sub>∞</sub>) through electrochemical hydrogen permeation tests. The experimental permeation data were fitted with a constant concentration model and Electrochemical Impedance Spectroscopy (EIS) tests were conducted to characterize the activity of Hydrogen Evolution Reaction (HER) after the optimization of electrochemically active surface area. Additionally, the kinetics of HER and the adsorption/desorption process is calculated by Iyer-Pickering-Zamanzadeh (IPZ) and surface effect models, of which the results demonstrate that the La<sup>3+</sup> in the corrosion products could effectively reduce the rate of Volmer reaction and hydrogen adsorption process, and accelerate the process of hydrogen atom desorption, thus leading to the remarkable decrease in <em>C</em><sub>0</sub>.</p></div>\",\"PeriodicalId\":100824,\"journal\":{\"name\":\"Journal of Pipeline Science and Engineering\",\"volume\":\"3 2\",\"pages\":\"Article 100107\"},\"PeriodicalIF\":4.8000,\"publicationDate\":\"2023-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Pipeline Science and Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2667143322000798\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Pipeline Science and Engineering","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2667143322000798","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
Effects of La3+ on the hydrogen permeation and evolution kinetics in X70 pipeline steel
The inhibitory effect of La3+ on the hydrogen permeation of X70 pipeline steel was investigated via steady-state hydrogen permeation current (i∞) through electrochemical hydrogen permeation tests. The experimental permeation data were fitted with a constant concentration model and Electrochemical Impedance Spectroscopy (EIS) tests were conducted to characterize the activity of Hydrogen Evolution Reaction (HER) after the optimization of electrochemically active surface area. Additionally, the kinetics of HER and the adsorption/desorption process is calculated by Iyer-Pickering-Zamanzadeh (IPZ) and surface effect models, of which the results demonstrate that the La3+ in the corrosion products could effectively reduce the rate of Volmer reaction and hydrogen adsorption process, and accelerate the process of hydrogen atom desorption, thus leading to the remarkable decrease in C0.
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