| Adsorption and corrosion inhibition performance of multi-phytoconstituents from Dioscorea septemloba on carbon steel in acidic media: Characterization, experimental and theoretical studies | |
| Emori, Wilfred1,2; Zhang, Run-Hua1,2; Okafor, Peter C.3,4; Zheng, Xing-Wen5; He, Tao6; Wei, Kun6; Lin, Xiu-Zhou1,2; Cheng, Chun-Ru2,6 | |
| Corresponding Author | Okafor, Peter C.(pcokafor@unical.edu.ng) ; Cheng, Chun-Ru(pharmaceutics@163.com) |
| 2020-04-05 | |
| Source Publication | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| ISSN | 0927-7757 |
| Volume | 590Pages:13 |
| Abstract | 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. |
| Keyword | Adsorption Corrosion inhibition Carbon steel Extract characterization EIS Polarization |
| Funding Organization | 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 |
| DOI | 10.1016/j.colsurfa.2020.124534 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Chemistry |
| WOS Subject | Chemistry, Physical |
| WOS ID | WOS:000513862500032 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/137311 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Okafor, Peter C.; Cheng, Chun-Ru |
| Affiliation | 1.Sichuan Univ Sci & Engn, Sch Mat Sci & Engn, Zigong 643000, Sichuan, Peoples R China 2.Key Lab Mat Corros & Protect Sichuan Prov, Zigong 643000, Sichuan, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 4.Univ Calabar, Dept Pure & Appl Chem, Corros & Electrochem Res Grp, PMB 1115, Calabar, Nigeria 5.Sichuan Univ Sci & Engn, Sch Chem & Environm Engn, Zigong 643000, Sichuan, Peoples R China 6.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 |
| Recommended Citation 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. |
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