Adsorption and corrosion inhibition performance of multi-phytoconstituents from Dioscorea septemloba on carbon steel in acidic media: Characterization, experimental and theoretical studies

doi:10.1016/j.colsurfa.2020.124534

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	Adsorption and corrosion inhibition performance of multi-phytoconstituents from Dioscorea septemloba on carbon steel in acidic media: Characterization, experimental and theoretical studies
	Emori, Wilfred 2,3; Zhang, Run-Hua 2,3; Okafor, Peter C.4,5; Zheng, Xing-Wen 6; He, Tao 1; Wei, Kun 1; Lin, Xiu-Zhou 2,3; Cheng, Chun-Ru 1,3
刊名	COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
	2020-04-05
卷号	590 页码:13
关键词	Adsorption Corrosion inhibition Carbon steel Extract characterization EIS Polarization
ISSN号	0927-7757
DOI	10.1016/j.colsurfa.2020.124534
通讯作者	Okafor, Peter C.(pcokafor@unical.edu.ng) ; Cheng, Chun-Ru(pharmaceutics@163.com)
英文摘要	The adsorption and corrosion inhibition performance of the water phase and organic phase extracts from Dioscorea septemloba on carbon steel have been carried out in 1 M HCl solutions. Extracts characterization was accomplished by NMR spectroscopy and the generic carbohydrate test. Electrochemical techniques and gravimetry were utilized for the evaluation of corrosion inhibition behaviors. 3D surface measurement instrument, SEM, and FT-IR were used to examine the surface properties of carbon steel coupons after full immersion in 1 M HCl solutions without and with the extracts. Quantum chemical calculation (QCC) and molecular dynamics simulation (MDS) were used to predict and describe the electronic and adsorption properties of some characterized compounds in the extracts. Both extracts exhibited similar corrosion inhibition behaviors acting as mixed-type inhibitors and having their efficiencies dependent on concentration and temperature. Time-dependent corrosion evaluation showed that the inhibition efficiencies of the extracts were improved with time. Low surface roughness data were recorded for the extracts by 3D surface measurements and the results were consistent with the observations from SEM micrographs and FT-IR spectra. Computational parameters obtained from QCC and MDS were used to predict the adsorption behavior of some characterized compounds from the extracts.
资助项目	Sichuan University of Science and Engineering[2018RCL13] ; Sichuan University of Science and Engineering[2016RCL11] ; Open Fund Research of Key Laboratory of Corrosion and Protection of Materials in Sichuan Province[2018CL02] ; Chinese Academy of Sciences Visiting Professorship for Senior International Scientists[2019VEA0030] ; Scientific Research Fund of Sichuan Provincial Education Department[18ZA0359] ; Open Project of Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education[LZJ18202] ; Key Laboratories of Fine Chemicals and Surfactants in Sichuan Provincial Universities[2019JXZ02]
WOS研究方向	Chemistry
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000513862500032
资助机构	Sichuan University of Science and Engineering ; Open Fund Research of Key Laboratory of Corrosion and Protection of Materials in Sichuan Province ; Chinese Academy of Sciences Visiting Professorship for Senior International Scientists ; Scientific Research Fund of Sichuan Provincial Education Department ; Open Project of Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education ; Key Laboratories of Fine Chemicals and Surfactants in Sichuan Provincial Universities
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/137312]
专题	金属研究所_中国科学院金属研究所
通讯作者	Okafor, Peter C.; Cheng, Chun-Ru
作者单位	1.Sichuan Univ Sci & Engn, Sch Chem Engn, Inst Pharmaceut Engn Technol & Applicat, Key Lab Green Chem,Sichuan Inst Higher Educ, Zigong 643000, Sichuan, Peoples R China 2.Sichuan Univ Sci & Engn, Sch Mat Sci & Engn, Zigong 643000, Sichuan, Peoples R China 3.Key Lab Mat Corros & Protect Sichuan Prov, Zigong 643000, Sichuan, Peoples R China 4.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 5.Univ Calabar, Dept Pure & Appl Chem, Corros & Electrochem Res Grp, PMB 1115, Calabar, Nigeria 6.Sichuan Univ Sci & Engn, Sch Chem & Environm Engn, Zigong 643000, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Emori, Wilfred,Zhang, Run-Hua,Okafor, Peter C.,et al. Adsorption and corrosion inhibition performance of multi-phytoconstituents from Dioscorea septemloba on carbon steel in acidic media: Characterization, experimental and theoretical studies[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2020,590:13.
APA	Emori, Wilfred.,Zhang, Run-Hua.,Okafor, Peter C..,Zheng, Xing-Wen.,He, Tao.,...&Cheng, Chun-Ru.(2020).Adsorption and corrosion inhibition performance of multi-phytoconstituents from Dioscorea septemloba on carbon steel in acidic media: Characterization, experimental and theoretical studies.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,590,13.
MLA	Emori, Wilfred,et al."Adsorption and corrosion inhibition performance of multi-phytoconstituents from Dioscorea septemloba on carbon steel in acidic media: Characterization, experimental and theoretical studies".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 590(2020):13.