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Tan J, Fan B, Zhang P, Wei Y, Soomro RA, Zhao X, Kumar J, Qiao N, Xu B. Ultralong Stability of Ti 3 C 2 T x -MXene Dispersion Through Synergistic Regulation of Storage Environment and Defect Capping with Tris-HCl Buffering. SMALL METHODS 2024:e2301689. [PMID: 38420900 DOI: 10.1002/smtd.202301689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/29/2024] [Indexed: 03/02/2024]
Abstract
Aqueous MXene dispersion suffers from a bottleneck issue of oxidation, leading to its gradual deterioration and ultimately compromised physicochemical characteristics. Herein, Tris-HCl buffer is employed to stabilize the diluted Ti3 C2 Tx -MXene dispersion (0.05 mg mL-1 ) through the synergy of its potent pH-regulation capability and capping effect toward oxidation-susceptible defects/edges. Tris-HCl functionalized Ti3 C2 Tx maintained its original morphology, structure, and favorable dispersity even after 150 days of aging under naturally aerated conditions. The pH-regulation nature of Tris-HCl is elucidated through solution monitoring of Ti3 C2 Tx dispersion, while the adsorption of Tris-HCl onto defects/edges is revealed by spectral analysis and multi-scale simulations. Tris-HCl at the neutral pH can bind to the negatively charged basal plane of Ti3 C2 Tx via + HTris moiety, while the other moiety (Tris) interacts with the exposed edge-based Ti atoms and/or intrinsic defects, forming a Ti─N bond that prevents MXene from attack by H2 O and O2 . Besides, Tris-HCl stabilized Ti3 C2 Tx exhibited nearly identical capacitive characteristics to its freshly-etched counterpart, indicating the minimal impact of Tris-HCl on electrochemical performance of Ti3 C2 Tx during long-term storage. This study provides practical guidance for stabilizing MXene in their native aqueous dispersion without compromising the inherent properties.
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Affiliation(s)
- Jiayi Tan
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Baomin Fan
- College of Chemical and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, China
| | - Peng Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yi Wei
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Razium A Soomro
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xiaoqi Zhao
- College of Chemical and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, China
| | - Jai Kumar
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Ning Qiao
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Bin Xu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
- Shaanxi Key Laboratory of Chemical Reaction Engineering, School of Chemistry and Chemical Engineering, Yan'an University, Yan'an, 716000, China
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Berdimurodov E, Eliboyev I, Berdimuradov K, Kholikov A, Akbarov K, Dagdag O, Rbaa M, El Ibrahimi B, Verma DK, Haldhar R, Arrousse N. Green β-cyclodextrin-based corrosion inhibitors: Recent developments, innovations and future opportunities. Carbohydr Polym 2022; 292:119719. [PMID: 35725191 DOI: 10.1016/j.carbpol.2022.119719] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/22/2022] [Accepted: 06/06/2022] [Indexed: 11/26/2022]
Abstract
β-Cyclodextrin-based compounds are used to develop and innovate materials that protect against corrosion due to their sustainability, low cost, environmental friendliness, excellent water solubility and high inhibition efficiency. However, corrosion potentials of β-CD-based compounds were not reviewed with the modern trends. The essence of the problem is that a deep understanding of the development and innovation of β-CD-based compounds as corrosion inhibitors is very important in creating next-generation materials for corrosion protection. In this review, the fundamental behaviour, importance, developments and innovations of β-CD modified with natural and synthetic polymers, β-CD grafted with the organic compounds, β-CD-based supramolecular (host-guest) systems with organic molecules, polymer β-CD-based supramolecular (host-guest) systems, β-CD-based graphene oxide materials, β-CD-based nanoparticle materials and β-CD-based nanocarriers as corrosion inhibitors for various metals were reviewed and discussed with recent research works as examples. In addition, the corrosion inhibition of β-CD-based compounds for biocorrosion, microbial corrosion and biofouling was reviewed. It was found that (i) these compounds are sustainable, inexpensive, environmentally friendly, and highly water-soluble and have high inhibition efficiency; (ii) the molecular structure of β-CD makes it an excellent molecular container for corrosion inhibitors compounds; (iii) the β-CD is excellent core to develop the next generation of corrosion inhibitors. It is recommended that (i) β-CD compounds would be synthesized by green methods, such as using biological sustainable catalysts and green solvents, green methods include irradiation or heating, energy-efficient microwave irradiation, mechanochemical mixing, solid-state reactions, hydrothermal reactions and multicomponent reactions; (ii) this review will be helpful in creating, enhancing and innovating the next green and efficient materials for future corrosion protection in high-impact industries.
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Affiliation(s)
- Elyor Berdimurodov
- Faculty of Chemistry, National University of Uzbekistan, Tashkent 100034, Uzbekistan.
| | - Ilyos Eliboyev
- Faculty of Chemistry, National University of Uzbekistan, Tashkent 100034, Uzbekistan
| | - Khasan Berdimuradov
- Faculty of Industrial Viticulture and Food Production Technology, Shahrisabz branch of Tashkent Institute of Chemical Technology, Shahrisabz 181306, Uzbekistan
| | - Abduvali Kholikov
- Faculty of Chemistry, National University of Uzbekistan, Tashkent 100034, Uzbekistan
| | - Khamdam Akbarov
- Faculty of Chemistry, National University of Uzbekistan, Tashkent 100034, Uzbekistan
| | - Omar Dagdag
- Institute of Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa, Johannesburg, South Africa
| | - Mohamed Rbaa
- Laboratory of Organic Chemistry, Catalysis and Environment, Faculty of Sciences, Ibn Tofail University, PO Box 133, 14000 Kenitra, Morocco
| | - Brahim El Ibrahimi
- Department of Applied Chemistry, Faculty of Applied Sciences, Ibn Zohr University, 86153, Morocco
| | - Dakeshwar Kumar Verma
- Department of Chemistry, Government Digvijay Autonomous Postgraduate College, Rajnandgaon, Chhattisgarh 491441, India
| | - Rajesh Haldhar
- School of Chemical Engineering, Yeungnam University, Gyeongsan 712749, South Korea
| | - Nadia Arrousse
- Laboratory of Engineering, Electrochemistry, Modeling and Environment (LIEME), Faculty of Sciences, University Sidi Mohamed Ben Abdellah, Fez, Morocco
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Li W, Luo W, Yu X, Ma C, Xiong Y, Tan B, Qiang Y. Adsorption and inhibition behavior of 3-chloro-6-mercaptopyridazine towards copper corrosion in sulfuric acid. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119100] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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4
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Anticorrosive Effect of Halogenated Aniline Enaminoesters on Carbon Steel in HCl. INTERNATIONAL JOURNAL OF CORROSION 2022. [DOI: 10.1155/2022/7218063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Four enaminoesters derived from halogenated aniline, with potential anticorrosion activity, were synthesized and tested against carbon steel AISI 1020 in acid medium using 1.0 mol L-1 HCl. The synthesis was demonstrated through the reaction of ethyl acetoacetate with four different amines, in the presence of glacial acetic acid and molecular sieve, using ethanol as solvent for 24 h. The evaluation of the anticorrosive activity was performed using the gravimetric technique and electrochemical methods, such as electrochemical impedance spectroscopy (EIS), linear polarization resistance (LPR), and potentiodynamic polarization (PP). Results indicated that the F-EN (Ethyl (2Z)-3-[(4-fluoro-phenyl)-amino]-but-2-enoate) inhibitor had higher corrosion inhibition efficiency, of 98% by mass loss, and 85% by electrochemical techniques. Adsorption obeyed the Langmuir isotherm, thus suggesting that the inhibitors form a monolayer film in metal surface. These results also contributed to the calculations of the physicochemical parameters of
,
, and
, which confirmed the corrosion inhibition when compared to the absence of the inhibitors.
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Zhao X, Liu X, Fan B, Zheng X. Optimized Anticorrosion of Polypyrrole Coating by Inverted-Electrode Strategy: Experimental and Molecular Dynamics Investigations. Polymers (Basel) 2022; 14:1356. [PMID: 35406230 PMCID: PMC9002398 DOI: 10.3390/polym14071356] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/15/2022] [Accepted: 03/22/2022] [Indexed: 02/04/2023] Open
Abstract
To improve the poor adhesion and the ensuing insufficient anticorrosion efficacy of electropolymerized polypyrrole (PPy) on copper surface, an inverted-electrode strategy was applied after the passivation procedure, for which the compact coating (PPy-I) was deposited on the substrate in a cathodic window. Morphological and physical characterizations revealed that PPy-I exerted satisfactory adhesion strength and suitable thickness and conductivity compared with the analogue prepared via the traditional protocol (PPy-T). Potentiodynamic polarization, electrochemical impedance spectroscopy and frequency modulation were employed to ascertain the propitious protection of PPy-I for copper in artificial seawater (ASW). Due to the dominant electroactivity, the PPy-I-coated sample possessed higher apparent current density and lower charge transfer resistance than its PPy-T-protected counterpart, which maintained the passivation of the substrate. Surface analysis also supported the viability of PPy-I for copper in ASW for a well-protected surface with inferior water wettability. Molecular dynamics simulations evidenced that PPy-I with the higher density retained efficient anticorrosion capacity on copper at elevated temperatures. Therein, the derived time-dependent spatial diffusion trajectories of ions were locally confined with low diffusion coefficients. Highly twisted pore passages and anodic protection behavior arising respectively from the tight coating architecture and electroactivity contributed to the adequate corrosion resistance of PPy-I-coated copper.
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Affiliation(s)
- Xiaoqi Zhao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Xiaoyan Liu
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Baomin Fan
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Xingwen Zheng
- Key Laboratory of Material Corrosion and Protection of Sichuan Province, Sichuan University of Science & Engineering, Zigong 643000, China
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Influence of Surface Pretreatments on the Anticorrosion of Polypyrrole Electro-Polymerized Coatings for Copper in Artificial Seawater. METALS 2022. [DOI: 10.3390/met12030383] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Plasma discharging treatment (hydroxylation) was conducted on copper surfaces for the subsequent electro-polymerization procedure of polypyrrole (PPy) coating (d-PPy). The hydroxylated surface could solve the criticized adhesion strength and protection efficiency of electropolymerized coatings for metal substrate in corrosive media. Compared with the counterpart obtained via passivation pretreatment (p-PPy), a well-adhered d-PPy layer was acquired on the hydroxylated copper surface, which earned a satisfactory adhesion grade, compactness and conductivity. Appreciable protection of d-PPy was measured for copper in the artificial seawater (ASW) at 298 K via electrochemical and surface analyses. Results of electrochemical measurements indicated that d-PPy coating effectively retarded copper corrosion in ASW with a lowered corrosion current density and improved charge transfer resistance. Surface analysis revealed that the typical morphology of PPy was retained after 240 h immersion in ASW. A favorable physical barrier and anodic protection efficacy might account for the superior protection of d-PPy coating for the underlying copper. Molecular dynamics simulations for the deposition of PPy chains on pristine and hydroxylated copper planes provided a definite correlation between the theoretical calculations and experimental observations. Theoretical modelling also disclosed in-depth the anchoring nature and anticorrosive mechanism for PPy toward the hydroxylated copper in ASW.
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Zaher A, Aslam R, Lee HS, Khafouri A, Boufellous M, Alrashdi AA, El aoufir Y, Lgaz H, Ouhssine M. A combined computational & electrochemical exploration of the Ammi visnaga L. extract as a green corrosion inhibitor for carbon steel in HCl solution. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103573] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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8
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Electronic effects on protective mechanism of electropolymerized coatings based on N-substituted aniline derivatives for mild steel in saline solution. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2021.11.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Li D, Zhao X, Liu Z, Liu H, Fan B, Yang B, Zheng X, Li W, Zou H. Synergetic Anticorrosion Mechanism of Main Constituents in Chinese Yam Peel for Copper in Artificial Seawater. ACS OMEGA 2021; 6:29965-29981. [PMID: 34778668 PMCID: PMC8582072 DOI: 10.1021/acsomega.1c04500] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/11/2021] [Indexed: 05/08/2023]
Abstract
Active constituents of Chinese yam peel (CYPE), namely, diosgenin (DOG), batatasin-I (BTS-I), batatasin-III (BTS-III), and yam polysaccharide (Y-PS), were extracted via an ultrasonic soaking strategy. The synergetic anticorrosion mechanism among these compounds for copper in artificial seawater (ASW) was clarified by gravimetric measurements, electrochemical evaluations, surface analyses, quantum chemical calculations under a dominant solvent model, and molecular dynamics (MD) simulations. The results of weight loss revealed that CYPE strongly inhibited the corrosion of copper in ASW, and the elevating temperature boosted the anticorrosion efficacy of CYPE. The inhibition efficiency could attain 96.33% with 900 mg/L CYPE in ASW at 298 K due to effective adsorption. CYPE simultaneously suppressed the anodic and cathodic reactions for copper in ASW, which could be categorized as the mixed-type corrosion inhibitor with the predominant anodic effect. Similar electrochemical kinetics was evidenced by electrochemical frequency modulation (EFM). Electrochemical impedance spectroscopy (EIS) indicated that CYPE prominently increased the charge-transfer resistance at the copper/electrolyte interface without altering the corrosion mechanism. Extending the immersion time was also conducive for CYPE to further minimize the corrosion of copper in ASW, which was demonstrated by the time-course polarization, EIS, and EFM tests. Owing to the adsorption of CYPE, the copper surface was well-protected and showed reduced wettability and limited variation of roughness. From the outcomes of quantum chemical calculations, global and local reactive descriptors of DOG implied the cross-linked deposition of actually formed dioscin on the copper surface; otherwise, those of BTS-I/-III showed the propensity for parallel adsorption, which could chemically anchor on the voids uncovered by dioscin and thereby synergistically inhibit the corrosion process. The adsorption orientations of DOG, BTS-I, and BTS-III were also consolidated by MD simulations. The findings of this study might be beneficial to inspire the development of eco-friendly corrosion inhibitors from plant wastes for copper in marine environments.
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Affiliation(s)
- Dejin Li
- College
of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Xiaoqi Zhao
- College
of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Zining Liu
- College
of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Hao Liu
- College
of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Baomin Fan
- College
of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Biao Yang
- College
of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Xingwen Zheng
- Key
Laboratory of Material Corrosion and Protection of Sichuan Province, Sichuan University of Science & Engineering, Zigong 643000, China
| | - Wenzhuo Li
- College
of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
| | - Huijian Zou
- College
of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, China
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10
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Fabrication, characterization and efficient surface protection mechanism of poly(trans-cinnamaldehyde) electropolymerized coatings for EH36 steel in simulated seawater. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127434] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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11
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Meng S, Liu Z, Zhao X, Fan B, Liu H, Guo M, Hao H. Efficient corrosion inhibition by sugarcane purple rind extract for carbon steel in HCl solution: mechanism analyses by experimental and in silico insights. RSC Adv 2021; 11:31693-31711. [PMID: 35496830 PMCID: PMC9041445 DOI: 10.1039/d1ra04976c] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 09/12/2021] [Indexed: 12/29/2022] Open
Abstract
Sugarcane purple rind ethanolic extract (SPRE) was evaluated as an efficient corrosion inhibitor for carbon steel (C-steel) in 1 M HCl solution. Dynamic weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and frequency modulation (EFM) measurements were employed to evaluate the anticorrosive efficiency of SPRE, which was further validated by morphological and wettability analyses. The results of the weight loss tests showed that the inhibition efficiency (η w) for C-steel in HCl solution increased with an increase in the concentration of SPRE. An increase in temperature moderately impaired the anticorrosive efficacy of SPRE. The maximum η w of 96.2% was attained for C-steel in the inhibition system with 800 mg L-1 SPRE at 298 K. The polarization curves indicated that SPRE simultaneously suppressed the anodic and cathodic reactions for C-steel in HCl solution, which can be categorized as a mixed-type corrosion inhibitor with a predominant anodic effect. The corrosion current density (i corr-P) was monotonously reduced with an increase in the concentration of SPRE. The charge transfer resistance (R ct) was enhanced for C-steel in the inhibition solution with a restrained capacitive property due to the adsorption of SPRE. A high temperature caused partial desorption of SPRE on the C-steel surface and a slight increase in i corr-P and decrease in R ct. However, SPRE still fully maintained its morphology and wettability at 328 K. The electrochemical kinetics of C-steel in HCl solution without and with SPRE was also supported by EFM spectra. The adsorption of SPRE conformed to the Langmuir isotherm and increased the corrosion activation energy of C-steel. Complementing the experimental observations, calculations based on density functional theory indicated that the hydroxyl-substituted pyran moiety on the carthamin (CTM) and anthocyanin (ATC) constituents in SPRE hardly contributed to its reactive activity due to their adsorption processes. Therefore, CTM and ATC exhibited imperfect parallel adsorption on the Fe (100) plane according to the molecular dynamics simulation, while anthoxanthin (ATA) and catechinic acid (CCA) constituents exhibited a flat orientation on the iron surface.
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Affiliation(s)
- Siguang Meng
- College of Chemistry and Materials Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Zining Liu
- College of Chemistry and Materials Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Xiaoqi Zhao
- College of Chemistry and Materials Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Baomin Fan
- College of Chemistry and Materials Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Hao Liu
- College of Chemistry and Materials Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Mao Guo
- College of Chemistry and Materials Engineering, Beijing Technology and Business University Beijing 100048 China
| | - Hua Hao
- Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 China
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12
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Ahmed RK, Zhang S. Bee pollen extract as an eco-friendly corrosion inhibitor for pure copper in hydrochloric acid. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113849] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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13
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Berdimurodov E, Kholikov A, Akbarov K, Xu G, Abdullah AM, Hosseini M. New anti-corrosion inhibitor (3ar,6ar)-3a,6a-di-p-tolyltetrahydroimidazo[4,5-d]imidazole-2,5(1 h,3h)-dithione for carbon steel in 1 M HCl medium: gravimetric, electrochemical, surface and quantum chemical analyses. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.08.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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14
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Trazodone as an efficient corrosion inhibitor for carbon steel in acidic and neutral chloride-containing media: Facile synthesis, experimental and theoretical evaluations. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113302] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Ma Y, Zhou T, Zhu W, Fan B, Liu H, Fan G, Hao H, Sun H, Yang B. Understanding the anticorrosive mechanism of a cross-linked supramolecular polymer for mild steel in the condensate water: comprehensive experimental, molecular docking, and molecular dynamics investigations. J Mol Model 2020; 26:81. [PMID: 32180006 DOI: 10.1007/s00894-020-4336-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 02/26/2020] [Indexed: 11/30/2022]
Abstract
A supramolecular polymer (CDP-DA) was prepared through the crosslinking reaction among the assembled complexes (CDDA) based on β-cyclodextrin (β-CyD) and octadecylamine (ODA). The structural properties of CDP-DA were clarified by experimental techniques such as Fourier transform infrared spectroscopy, X-ray diffraction, scanning electron microscope, and thermal analysis. Based on the results of molecular docking, the crosslinking unit, CDDA, in the CDP-DA structure favors to exhibit the configuration that narrow rims of two host compounds (β-CyD) are opposite to each other leaving the amino group of ODA outside the host cavity. The corrosion inhibition performance of CDP-DA for mild steel in industrial condensate water was evaluated by electrochemical measurements and surface analyses, the mechanism of which was disclosed by molecular dynamics simulations in the aspects of adsorption equilibrium and ions diffusion models. The results of electrochemical tests indicate that CDP-DA effectively retards the anodic and cathodic reactions and improves the interfacial charge transfer resistance of mild steel in condensate water, which can be categorized as the mixed-type inhibitor. Surface analyses reveal that CDP-DA adsorbs on the steel surface in the integral form showing a monolayer nature, which is consolidated by molecular dynamics simulations. The diffusion behavior of in situ ions in the adsorbed layer is prominently suppressed as compared with those in bulk solution. The robust barrier layer and the mitigated diffusion of ions may contribute to the effective inhibition for CDP-DA against steel deterioration in the condensate water. Anticorrosive mechanism of a cross-linked supramolecular polymer for mild steel in the condensate water.
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Affiliation(s)
- Yucong Ma
- School of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing, 10048, China
| | - Tingting Zhou
- School of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing, 10048, China
| | - Wenqin Zhu
- Petro China, Petrochemical Research Institute, Beijing, 102206, China
| | - Baomin Fan
- School of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing, 10048, China.
| | - Hao Liu
- School of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing, 10048, China
| | - Guifeng Fan
- School of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing, 10048, China
| | - Hua Hao
- Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Hui Sun
- School of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing, 10048, China
| | - Biao Yang
- School of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing, 10048, China.
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