Experimental, theoretical and computational studies of oxalyl dihydrazide as a novel corrosion inhibitor for mild steel in neutral saline solution

doi:10.1016/j.colsurfa.2024.134717

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	Experimental, theoretical and computational studies of oxalyl dihydrazide as a novel corrosion inhibitor for mild steel in neutral saline solution
	Ma, Shi-Quan 1; Huang, Hao-Lan 1; Wan, Shan 1,2,3; Hao, Long 4; Liao, Bo-Kai 1; Guo, Xing-Peng 1,2,3,5
通讯作者	Liao, Bo-Kai(bokailiao@gzhu.edu.cn) ; Guo, Xing-Peng(guoxp@mail.hust.edu.cn)
	2024-10-20
发表期刊	COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN	0927-7757
卷号	699 页码:14
摘要	In this work, the corrosion inhibition performance and mechanism of oxalyl dihydrazide (ODH) for mild steel in neutral saline solution are in-depth studied using weight-loss and electrochemical tests, surface characterizations, theoretical calculation and computational simulations. Results indicate that ODH can act as a novel and superior mixed-type corrosion inhibitor for mild steel in neutral saline solution, its corrosion inhibition efficiency increases with the rising ODH concentration, and the optimum value reaches 88.7 % with adding 200 mg/L. Its corrosion inhibition ability becomes better with immersion time. A compact corrosion product film mainly consisting of Fe, O, N and Cl elements formed on metal surface after adding ODH. ODH molecules adsorb on metal surface in an orderly fashion to form a hydrophobic film, which is belonging to the physicochemical adsorption and obeys the Langmuir adsorption isotherm model. The corrosion inhibition process of ODH molecule on mild steel is the endothermic process, which enlarges the activation energy barrier of corrosion reactions. ODH molecule can expel the adsorbed water molecules on metal surface and form copolymers with increasing of ODH concentration, retarding the diffusion of water molecule thus protecting metal from corrosion. ODH is proved to be an effective organic corrosion inhibitor for protecting mild steel in neutral saline solution, and contributes toward research and application of easily accessible sources for organic corrosion inhibitors.
关键词	Mild Steel Corrosion Corrosion inhibitor Electrochemistry
资助者	National Natural Science Foundation of China
DOI	10.1016/j.colsurfa.2024.134717
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51971067] ; National Natural Science Foundation of China[52001080]
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
WOS记录号	WOS:001266415200001
出版者	ELSEVIER
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/187878
专题	中国科学院金属研究所
通讯作者	Liao, Bo-Kai; Guo, Xing-Peng
作者单位	1.Guangzhou Univ, Sch Chem & Chem Engn, Guangzhou 510006, Peoples R China 2.Guangzhou Univ, Joint Inst, Guangzhou 510006, Peoples R China 3.Guangzhou Univ, Inst Corros Sci & Technol, Guangzhou 510006, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Mat Corros & Protect Ctr, Shenyang 110016, Peoples R China 5.Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Hubei Key Lab Mat Chem & Serv Failure, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Ma, Shi-Quan,Huang, Hao-Lan,Wan, Shan,et al. Experimental, theoretical and computational studies of oxalyl dihydrazide as a novel corrosion inhibitor for mild steel in neutral saline solution[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2024,699:14.
APA	Ma, Shi-Quan,Huang, Hao-Lan,Wan, Shan,Hao, Long,Liao, Bo-Kai,&Guo, Xing-Peng.(2024).Experimental, theoretical and computational studies of oxalyl dihydrazide as a novel corrosion inhibitor for mild steel in neutral saline solution.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,699,14.
MLA	Ma, Shi-Quan,et al."Experimental, theoretical and computational studies of oxalyl dihydrazide as a novel corrosion inhibitor for mild steel in neutral saline solution".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 699(2024):14.