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Subbiah K, Lee HS, Al-Hadeethi MR, Park T, Lgaz H. Unraveling the anti-corrosion mechanisms of a novel hydrazone derivative on steel in contaminated concrete pore solutions: An integrated study. J Adv Res 2024; 58:211-228. [PMID: 37634628 PMCID: PMC10982867 DOI: 10.1016/j.jare.2023.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/02/2023] [Accepted: 08/24/2023] [Indexed: 08/29/2023] Open
Abstract
INTRODUCTION Corrosion-induced deterioration of infrastructure is a growing global concern. The development and application of corrosion inhibitors are one of the most effective approaches to protect steel rebar from corrosion. Hence, this study focuses on a novel hydrazone derivative, (E)-N'-(4-(dimethylamino)benzylidene)-2-(5-methoxy-2-methyl-1H-indol-3-yl)aceto-hydrazide (HIND), and its potential application to mitigate corrosion in steel rebar exposed to chloride-contaminated concrete pore solutions (ClSCPS). OBJECTIVES The research aims to evaluate the anti-corrosion capabilities of HIND on steel rebar within a simulated corrosive environment, focusing on the mechanisms of its inhibitory effect. METHODS The corrosion of steel rebar exposed to the ClSCPS was studied through weight loss and electrochemical methods. The surface morphology of steel rebar surface was characterized by FE-SEM-EDS, AFM; oxidation states of the steel rebar and crystal structures were examined using X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) methods. Further, experimental findings were complemented by theoretical studies using self-consistent-charge density-functional tight-binding (SCC-DFTB) simulations. The performance of HIND was monitored at an optimal concentration over a period of 30 days. RESULTS The results indicated a significant reduction in steel rebar corrosion upon introducing HIND. The inhibitor molecules adhered to the steel surface, preventing further deterioration and achieving an inhibition efficiency of 88.4% at 0.5 mmol/L concentration. The surface morphology analysis confirmed the positive effect of HIND on the rebar surface, showing a decrease in the surface roughness of the steel rebar from 183.5 in uninhibited to 50 nm in inhibited solutions. Furthermore, SCC-DFTB simulations revealed the presence of coordination between iron atoms and HIND active sites. CONCLUSION The findings demonstrate the potential of HIND as an effective anti-corrosion agent in chloride-contaminated environments. Its primary adsorption mechanism involves charge transfer from the inhibitor molecules to iron atoms. Therefore, applying HIND could be an effective strategy to address corrosion-related challenges in reinforced infrastructure.
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Affiliation(s)
- Karthick Subbiah
- Department of Architectural Engineering, Hanyang University-ERICA, 55 Hanyangdaehak-ro, Sangrok-gu, Ansan-si, Gyeonggi-do 15588, Republic of Korea
| | - Han-Seung Lee
- Department of Architectural Engineering, Hanyang University-ERICA, 55 Hanyangdaehak-ro, Sangrok-gu, Ansan-si, Gyeonggi-do 15588, Republic of Korea.
| | - Mustafa R Al-Hadeethi
- Department of Chemistry, College of Education, University of Kirkuk, Kirkuk 36001, Iraq
| | - Taejoon Park
- Department of Robotics Engineering, Hanyang University, 55 Hanyangdaehak-ro, Ansan, Gyeonggi-do 15588, Republic of Korea
| | - Hassane Lgaz
- Innovative Durable Building and Infrastructure Research Center, Center for Creative Convergence Education, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangrok-gu, Ansan-si, Gyeonggi-do 15588, Republic of Korea.
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Marconi E, Luisetto I, Di Carlo G, Staccioli MP, Tuti S, Tortora L. 3-APTES on Dendritic Fibrous Mesoporous Silica Nanoparticles for the pH-Controlled Release of Corrosion Inhibitors. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2543. [PMID: 37764572 PMCID: PMC10537782 DOI: 10.3390/nano13182543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023]
Abstract
Mesoporous silica nanoparticles (MSNPs) are currently used in different fields like catalysis, nanomedicine, and conservation science, taking advantage of their high surface area. Here, we synthesized and functionalized mesoporous dendritic fibrous nanoparticles to realize a smart delivery system of protective agents for metals. Different MSNPs were obtained via the microemulsion method followed by a hydrothermal or refluxing treatment at different w/o ratios, times, and temperatures. Dendritic spherical silica nanoparticles with specific features such as an appropriate size (450 nm), a very large surface area (600 m2 g-1), and a high yield synthesis (86%) were selected for surface modification. The fiber surface of the selected MSNPs was functionalized with 3-aminopropyl triethoxysilane (3-APTES). 3-APTES works as a pH-driven "nanogate", suppressing the immediate leakage of the total guest molecule load and modulating the release as a function of pH conditions. Surface-modified MSNPs were tested as a reservoir of the most diffused corrosion inhibitors: Mercaptobenzothiazole (MBT) and 1H-Benzotriazole (BTA); their release properties were studied in solutions with pH = 4 and 7. Functionalized and non-functionalized MSNPs showed a good loading efficiency of guest molecules (34-64%) and a pH-dependent release of the corrosion inhibitors on a timescale of several hours.
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Affiliation(s)
- Eleonora Marconi
- LASR3 Surface Analysis Laboratory Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy;
- National Institute for Nuclear Physics, INFN Roma, Tre Via della Vasca Navale 84, 00146 Rome, Italy
- Department of Sciences, Roma Tre University, Via della Vasca Navale 84, 00146 Rome, Italy;
| | - Igor Luisetto
- Department of Energy Technologies, ENEA C.R. Casaccia DTE-PCU-IPSE, S.P. 081 Via Anguillarese 301, S.M. di Galeria, 00123 Rome, Italy;
| | - Gabriella Di Carlo
- Institute for the Study of Nanostructured Materials, National Research Council (ISMN-CNR), Via Salaria km 29.3, Monterotondo, 00015 Rome, Italy; (G.D.C.); (M.P.S.)
| | - Maria Paola Staccioli
- Institute for the Study of Nanostructured Materials, National Research Council (ISMN-CNR), Via Salaria km 29.3, Monterotondo, 00015 Rome, Italy; (G.D.C.); (M.P.S.)
| | - Simonetta Tuti
- Department of Sciences, Roma Tre University, Via della Vasca Navale 84, 00146 Rome, Italy;
| | - Luca Tortora
- LASR3 Surface Analysis Laboratory Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy;
- National Institute for Nuclear Physics, INFN Roma, Tre Via della Vasca Navale 84, 00146 Rome, Italy
- Department of Sciences, Roma Tre University, Via della Vasca Navale 84, 00146 Rome, Italy;
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Mroczka R, Słodkowska A. Studies of Benzotriazole on and into the Copper Electrodeposited Layer by Cyclic Voltammetry, Time-of-Flight Secondary-Ion Mass Spectrometry, Atomic Force Microscopy, and Surface Enhanced Raman Spectroscopy. Molecules 2023; 28:5912. [PMID: 37570882 PMCID: PMC10420986 DOI: 10.3390/molecules28155912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 07/28/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
Benzotriazole (BTA) is an important compound that demonstrates the strongest anticorrosion properties of copper and plays a role as a leveler and an additive to the electroplating bath for control of the roughness and corrosion resistance of the electrodeposited copper layer. In this paper, we combined cyclic voltammetry (CV), time-of-flight secondary-ion mass spectrometry (TOF-SIMS), surface enhanced Raman spectroscopy (SERS), and atomic force microscopy (AFM) to study the interaction of BTA with copper surfaces at varied concentrations with and without the presence of chloride ions. We identified the most relevant molecular copper and its complex forms with BTA on the copper electrodeposited layer. BTA is adsorbed and incorporated into the copper surface in monomeric, dimeric, trimeric, tetrameric, and pentameric forms, inhibiting the copper electrodeposition. The addition of chloride ions diminishes the inhibiting properties of BTA. The Cu-BTA-Cl complexes were identified in the forms C12H8N6Cu2Cl- and C6H4N3CuCl-. Coadsorption of chloride ions and BTA molecules depends on their concentration and applied potential. Chloride ions are replaced by BTA molecules. BTA and chloride ions, depending on their concentration and applied potential, control the copper nucleation processes at the micro- and nanoscales. We compared the abilities and limitations of TOF-SIMS and SERS for studies of the interactions of benzotriazole with copper and chloride ions at the molecular level.
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Affiliation(s)
- Robert Mroczka
- Laboratory of X-ray Optics, Department of Chemistry, Institute of Biological Sciences, Faculty of Medicine, The John Paul II Catholic University of Lublin, Konstantynów 1J, 20-708 Lublin, Poland;
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El-Haitout B, Hejjaj C, Lgaz H, Al-Hadeethi MR, Ali OM, Lee HS, Ali IH, Salghi R. Superior Long-Term Corrosion Inhibition of N80 Steel by New Eco-friendly Hydrazone-Based Compounds in a Simulated Oil Well Acidizing Environment: Establishing the Mechanism at the Molecular Level. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:15937-15949. [PMID: 36512730 DOI: 10.1021/acs.langmuir.2c02132] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The acid treatment process of production wells is one of the most acid-induced corrosive processes. Corrosion inhibitors are an effective tool to inhibit the acids employed in acidizing treatments. Herein, new eco-friendly hydrazone-based compounds, namely, 2-(4-isobutylphenyl)-N-((1E,2E)-3-phenylallylidene) propanehydrazide (IPP) and N'-cyclohexylidene-2-[4-(2-methylpropyl)phenyl] propanehydrazide (CIP), were prepared through the functionalization of ibuprofen (IBF) and applied for corrosion mitigation of N80 steel in 15 wt % HCl (referred to hereafter as blank). The anticorrosion performance of selected compounds was investigated by employing weight loss (WL), potentiodynamic polarization curves (PPCs), and electrochemical impedance spectroscopy (EIS), complemented by scanning electron microscopy (SEM) and atomic force microscopy (AFM) analyses. In addition, density functional theory-based tight-binding (DFTB) modeling was conducted to get molecular-level insights into inhibitor-metal bonding. Experimental results revealed excellent long-term corrosion inhibition efficiency at very low concentrations of inhibitors and a mixed-type inhibition process. Numerically, N80 steel polarization resistance increased from 5.51 Ω cm2 in blank to 608.4 and 396 Ω cm2 in blank inhibited with 5 × 10-3 mol/L of IPP and CIP, respectively, equivalent to 99% and 98% inhibition efficiency based on EIS experiments. Besides, SEM and AFM images showed that, after addition to 15 wt % HCl, inhibitors could effectively prevent the acid attack on the N80 steel surface. The fitting of experimental data to adsorption isotherms indicated that inhibitors' adsorption followed the Langmuir isotherm model and mixed physicochemical adsorption on the metal surface. The DFTB simulation revealed that inhibitor molecules can create covalent and physical interactions with iron atoms, which is further confirmed by partial density of states (PDOSs) analysis.
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Affiliation(s)
- Badr El-Haitout
- Laboratory of Applied Chemistry and Environment, ENSA, University Ibn Zohr, PO Box1136, Agadir, Morocco
| | - Chaymae Hejjaj
- Materials Science, Energy and Nano-engineering Department, Mohammed VI Polytechnic University (UM6P), Lot 660, Hay Moulay Rachid, 43150Benguerir, Morocco
| | - Hassane Lgaz
- Innovative Durable Building and Infrastructure Research Center, Center for Creative Convergence Education, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangrok-gu, Ansan-si, Gyeonggi-do15588, Korea
| | - Mustafa R Al-Hadeethi
- Department of Chemistry, College of Education, University of Kirkuk, Kirkuk36001, Iraq
| | - Omeed Maroof Ali
- Department of Chemistry, College of Education, University of Kirkuk, Kirkuk36001, Iraq
| | - Han-Seung Lee
- Department of Architectural Engineering, Hanyang University-ERICA, 1271 Sa 3-dong, Sangrok-gu, Ansan15588, Korea
| | - Ismat H Ali
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, 61413Abha, Saudi Arabia
| | - Rachid Salghi
- Laboratory of Applied Chemistry and Environment, ENSA, University Ibn Zohr, PO Box1136, Agadir, Morocco
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Adsorption of Benzene-1,4-diol, 3-Methyl-1,2-cyclopentanedione and 2,6-Dimethoxyphenol on Aluminium (111) plane using Density Functional Theory calculations. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Yang S, Zhao X, Qi Z, Lu YH, Somorjai G, Yang P, Baskin A, Prendergast D, Salmeron M. Chloride-Assisted Corrosion of Copper and Protection by Benzotriazole. ACS APPLIED MATERIALS & INTERFACES 2022; 14:6093-6101. [PMID: 35061362 DOI: 10.1021/acsami.1c15808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The structure and composition of copper surfaces in aqueous solutions of benzotriazole (BTAH) and NaCl was investigated by sum frequency vibrational spectroscopy as a function of concentration and bias during cyclic voltammetry experiments. We found that the protection provided by the BTAH films formed at the copper surface is effective for negative bias voltages below the open circuit potential (OCP) but not at positive voltages where Cl- displaces BTAH. By measuring the Gibbs adsorption energy of BTAH and Cl-, we found that a particularly stable Cl- structure is formed around the OCP, suggesting that electronegative additives that move the OCP to higher negative values can improve BTAH protection, which we confirmed by the addition of a negatively charged sodium dodecyl sulfate surfactant.
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Affiliation(s)
- Shanshan Yang
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Xiao Zhao
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California-Berkeley, Berkeley, California 94720, United States
| | - Zhiyuan Qi
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Yi-Hsien Lu
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Gabor Somorjai
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California-Berkeley, Berkeley, California 94720, United States
| | - Peidong Yang
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry, University of California-Berkeley, Berkeley, California 94720, United States
| | - Artem Baskin
- NASA Ames Research Center, Moffett Field, California 94035, United States
| | - David Prendergast
- Molecular Foundry Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Miquel Salmeron
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California-Berkeley, Berkeley, California 94720, United States
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7
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Verma C, Quraishi M, Rhee KY. Aqueous phase polymeric corrosion inhibitors: Recent advancements and future opportunities. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118387] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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8
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Olivieri F, Castaldo R, Cocca M, Gentile G, Lavorgna M. Innovative Silver-Based Capping System for Mesoporous Silica Nanocarriers Able to Exploit a Twofold Anticorrosive Mechanism in Composite Polymer Coatings: Tailoring Benzotriazole Release and Capturing Chloride Ions. ACS APPLIED MATERIALS & INTERFACES 2021; 13:48141-48152. [PMID: 34607424 PMCID: PMC9282642 DOI: 10.1021/acsami.1c15231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this work, engineered stimuli-responsive mesoporous silica nanoparticles (MSNs) were developed and exploited in polymer coatings as multifunctional carriers of a typical corrosion inhibitor, benzotriazole (BTA). In detail, a new capping system based on a BTA-silver coordination complex, able to dissolve in acid and alkaline conditions and to simultaneously tailor the BTA release and the capture of chloride ions, was properly designed and realized. Acrylic coatings embedding the engineered MSNs were deposited onto iron rebar samples and tested for their protective capability in acid and alkaline environments. Results highlighted the high potential of the proposed system for the protection of metals, due to the synergistic effect of the mesoporous structure and the capping system, which guaranteed both the sequestration of chloride ions and the on-demand release of the effective amount of anticorrosive agents able to ensure the enhanced protection of the substrate.
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Affiliation(s)
- Federico Olivieri
- Institute
for Polymers, Composites and Biomaterials, National Research Council
of Italy, Via Campi Flegrei, 34, 80078 Pozzuoli, Italy
| | - Rachele Castaldo
- Institute
for Polymers, Composites and Biomaterials, National Research Council
of Italy, Via Campi Flegrei, 34, 80078 Pozzuoli, Italy
| | - Mariacristina Cocca
- Institute
for Polymers, Composites and Biomaterials, National Research Council
of Italy, Via Campi Flegrei, 34, 80078 Pozzuoli, Italy
| | - Gennaro Gentile
- Institute
for Polymers, Composites and Biomaterials, National Research Council
of Italy, Via Campi Flegrei, 34, 80078 Pozzuoli, Italy
| | - Marino Lavorgna
- Institute
for Polymers, Composites and Biomaterials, National Research Council
of Italy, P.le E. Fermi
1, 80055 Portici, Italy
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9
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Understanding the adsorption and inhibitive properties of Nitrogen-Doped Carbon Dots for copper in 0.5 M H2SO4 solution. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.05.050] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Hajiahmadi Z, Tavangar Z. Proposing a new complexing agent for cyanide-free silver electroplating through a comprehensive computational study of dimethyl hydantoin. MOLECULAR SIMULATION 2021. [DOI: 10.1080/08927022.2021.1895436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Zahra Hajiahmadi
- Department of Physical Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
| | - Zahra Tavangar
- Department of Physical Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
- Institute of Nano Science and Nano Technology, University of Kashan, Kashan, Iran
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11
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Wrighton-Araneda K, Valdebenito C, Camarada MB, Abarca G, Cortés-Arriagada D. Interaction of supported ionic liquids phases onto copper nanoparticles: A DFT study. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113089] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Mahboub R. Comparative study of GO289 and 5-bromo-4-formylguaiacol using DFT and MD calculations. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2921-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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13
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Mahboub R. Theoretical study of Schiff bases reactivity prediction of corrosion inhibition effect. MOLECULAR SIMULATION 2019. [DOI: 10.1080/08927022.2019.1690143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Radia Mahboub
- Department of Chemistry, Faculty of Sciences, University of Tlemcen, Tlemcen, Algeria
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Quesada-Moreno MM, Avilés-Moreno JR, López-González JJ, Zúñiga FJ, María DS, Claramunt RM, Reviriego F, Alkorta I, Elguero J. The synergy of different solid-state techniques to elucidate the supramolecular assembly of two 1H-benzotriazole polymorphs. Phys Chem Chem Phys 2019; 21:19879-19889. [PMID: 31475282 DOI: 10.1039/c9cp03209f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1H-Benzotriazole crystallizes as two different polymorphs, namely 4aα and 4aβ. One polymorph is chiral and it resolves spontaneously as conglomerates. The other polymorph crystallizes in a centrosymmetric space group and it is therefore achiral. In both polymorphs supramolecular structures are formed starting from achiral monomers. An analysis of these two polymorphs of 1H-benzotriazole has been carried out by a complete strategy involving different solid-state experimental techniques and quantum chemical calculations (DFT, Density Functional Theory). In particular, X-ray crystallography, NMR spectroscopy and vibrational spectroscopy techniques (FarIR, IR and Raman) that are not sensitive to chirality have been used to characterize the two polymorphs structurally. Vibrational spectroscopy (VCD, Vibrational Circular Dichroism) that is sensitive to chirality was employed to determine the absolute configuration (M or P helices) of the chiral supramolecular structure of 4aα.
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Affiliation(s)
- María Mar Quesada-Moreno
- Departamento de Química Física y Analítica, Universidad de Jaén, Campus Las Lagunillas, E-23071, Jaén, Spain.
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Grillo F, Batchelor D, Larrea CR, Francis SM, Lacovig P, Richardson NV. On-surface condensation of low-dimensional benzotriazole-copper assemblies. NANOSCALE 2019; 11:13017-13031. [PMID: 31265047 DOI: 10.1039/c9nr04152d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The reactivity of benzotriazole with copper on a gold surface has been studied by a combination of surface sensitive methods with support from DFT (density functional theory) calculations. For some time benzotriazole has been known to enhance the corrosion resistance of copper at the monolayer level, although the exact mechanism is still a matter of discussion and disagreement in the literature. A single crystal Au(111) surface allows evaluation of the interaction of weakly physisorbed, intact benzotriazole molecules with copper atoms dosed to sub-monolayer amounts. These interactions have been characterised, in the temperature range ca. 300-650 K, by scanning tunnelling microscopy, high resolution electron energy loss spectroscopy and synchrotron-based X-ray photoemission spectroscopy and near-edge X-ray absorption fine structure studies. Supporting DFT calculations considered the stability of isolated, gas-phase, benzotriazole/Cu species and their corresponding spectroscopic signature at the N K absorption edge. In agreement with previous investigations, benzotriazole physisorbs on a clean Au(111) surface at room temperature forming a hydrogen-bonded network of flat-lying BTAH molecules, relatively weakly bonded to the underlying gold surface. However, in the presence of co-adsorbed copper atoms, proton removal from the molecules leads to species better described as BTA- interacting directly with Cu atoms. In these situations the molecules adopt a more upright orientation and Cu(BTA)2 and -[Cu(BTA)]n- species are formed, depending on temperature and coverage of the adsorbed species. These species are stable to relatively high temperatures, 550-600 K.
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Affiliation(s)
- Federico Grillo
- EaStCHEM - School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK.
| | - David Batchelor
- Karlsruhe Institut für Technologie (KIT) - IPS, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein, Germany
| | - Christian R Larrea
- EaStCHEM - School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK.
| | - Stephen M Francis
- EaStCHEM - School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK.
| | - Paolo Lacovig
- Elettra - Sinctrotrone Trieste, S.C.p.A., S.S. 14 km 163.5, 34149 Basovizza, Trieste, Italy
| | - Neville V Richardson
- EaStCHEM - School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK.
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Gattinoni C, Tsaousis P, Euaruksakul C, Price R, Duncan DA, Pascal T, Prendergast D, Held G, Michaelides A. Adsorption Behavior of Organic Molecules: A Study of Benzotriazole on Cu(111) with Spectroscopic and Theoretical Methods. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:882-893. [PMID: 30607957 DOI: 10.1021/acs.langmuir.8b03528] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The adsorption of organic molecules on solid substrates is important to applications in fields such as catalysis, photovoltaics, corrosion inhibition, adhesion, and sensors. The molecular level description of the surface-molecule interaction and of the adsorption structures in these complex systems is crucial to understand their properties and function. Here, we present an investigation of one such system, benzotriazole (BTAH) on single-crystal Cu(111) in vacuum conditions. BTAH is the most widely used corrosion inhibitor for copper and thus a molecule of great industrial relevance. We show that the co-application of a wide range of spectroscopic techniques with theoretical methods provides unique insight in the description of the atomistic details of the adsorbed structures. Specifically, spectroscopic photoemission, absorption, and standing wave experiments combined with ab initio computational modeling allowed us to identify that benzotriazole forms overlayers of intact BTAH when deposited at low temperature, and it dissociates into BTA and H at room temperature and above. The dissociated molecule then forms complex structures of mixed chains and dimers of BTA bound to copper adatoms. Our work also reveals that copper adatoms at low concentrations, such as the theoretically predicted superstructures, cannot be resolved by means of current X-ray photoelectron spectroscopy as the modeled Cu 2p spectra are practically indistinguishable from those for a Cu surface without adatoms. Overall this study significantly deepens understanding of BTAH on Cu, a system studied for more than 50 years, and it highlights the benefits of combining spectroscopic and computational methods to obtain a complete picture of a complex adsorption system.
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Affiliation(s)
- Chiara Gattinoni
- Thomas Young Centre, London Centre for Nanotechnology and Department of Physics and Astronomy , University College London , Gower Street , London WC1E 6BT , U.K
| | | | - Chanan Euaruksakul
- Department of Chemistry , University of Reading , Reading RG6 6AD , U.K
- Diamond Light Source, Harwell Science and Innovation Campus , Didcot OX11 0QX , U.K
| | - Rachel Price
- Department of Chemistry , University of Reading , Reading RG6 6AD , U.K
| | - David A Duncan
- Diamond Light Source, Harwell Science and Innovation Campus , Didcot OX11 0QX , U.K
| | - Tod Pascal
- Molecular Foundry , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - David Prendergast
- Molecular Foundry , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Georg Held
- Department of Chemistry , University of Reading , Reading RG6 6AD , U.K
- Diamond Light Source, Harwell Science and Innovation Campus , Didcot OX11 0QX , U.K
| | - Angelos Michaelides
- Thomas Young Centre, London Centre for Nanotechnology and Department of Physics and Astronomy , University College London , Gower Street , London WC1E 6BT , U.K
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Peña LF, Veyan JF, Todd MA, Derecskei-Kovacs A, Chabal YJ. Vapor-Phase Cleaning and Corrosion Inhibition of Copper Films by Ethanol and Heterocyclic Amines. ACS APPLIED MATERIALS & INTERFACES 2018; 10:38610-38620. [PMID: 30335353 DOI: 10.1021/acsami.8b13438] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Cleaning and passivation of metal surfaces are necessary steps for selective film deposition processes that are attractive for some microelectronic applications (e.g., fully aligned vias or self-aligned contacts). For copper, there is limited knowledge about the mechanisms of the copper oxide reduction process and subsequent passivation layer formation reactions. We have investigated the in situ cleaning (i.e., oxidation and reduction by vapor-phase species) and passivation of chemical-mechanical polishing (CMP)-prepared Cu films in an effort to derive the mechanisms associated with selectively tailoring the surface chemistry. By monitoring the interaction of vapor-phase ethanol with the surface species generated after ozone cleaning at 300 °C, we find that the optimum procedure to remove these species and avoid byproduct redeposition is to use atomic layer deposition (ALD)-like binary cycles of ethanol and N2, with active pumping. We have further explored passivation of clean Cu using benzotriazole and 2,2'-bipyridine in an ALD environment. Both molecules chemisorb on clean Cu in an upright orientation, with respect to the metal surface at temperatures higher than the melting point of the organic inhibitors (100 ≤ T < 300 °C). Both molecules desorb without decomposition from clean Cu above 300 °C but not from Cu2O. Previous studies related to the passivation of Cu surfaces using heterocyclic amines have focused on solution-based or ultrahigh vacuum applications of the passivation molecules onto single crystalline Cu samples. The present work explores more industrially relevant vapor-phase passivation of CMP-cleaned, electroplated Cu samples using ALD-like processing conditions and in situ vapor-phase cleaning.
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Affiliation(s)
- Luis Fabián Peña
- Department of Materials Science & Engineering , The University of Texas at Dallas , Richardson , Texas 75080 , United States
| | - Jean-Francois Veyan
- Department of Materials Science & Engineering , The University of Texas at Dallas , Richardson , Texas 75080 , United States
| | - Michael A Todd
- Versum Materials, Inc. , 8555 South River Parkway , Tempe , Arizona 85284 , United States
| | - Agnes Derecskei-Kovacs
- Versum Materials, Inc. , 8555 South River Parkway , Tempe , Arizona 85284 , United States
| | - Yves J Chabal
- Department of Materials Science & Engineering , The University of Texas at Dallas , Richardson , Texas 75080 , United States
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18
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Haque J, Srivastava V, Chauhan DS, Lgaz H, Quraishi MA. Microwave-Induced Synthesis of Chitosan Schiff Bases and Their Application as Novel and Green Corrosion Inhibitors: Experimental and Theoretical Approach. ACS OMEGA 2018; 3:5654-5668. [PMID: 31458765 PMCID: PMC6641920 DOI: 10.1021/acsomega.8b00455] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 05/15/2018] [Indexed: 05/22/2023]
Abstract
Environmentally friendly three chitosan Schiff bases (CSBs) were first time synthesized under microwave irradiation by the reaction of chitosan and aldehydes [benzaldehyde (CSB-1), 4-(dimethylamino)benzaldehyde (CSB-2), and 4-hydroxy-3-methoxybenzaldehyde (CSB-3)] and characterized by IR and NMR spectroscopy. The corrosion inhibition performance of the synthesized inhibitors was studied by the electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP). The results show that all the Schiff bases (CSBs) act as effective corrosion inhibitors for mild steel in 1 M HCl solution. Among the synthesized Schiff bases, CSB-3 exhibited the maximum inhibition efficiency of 90.65% at a very low concentration of 50 ppm. The EIS results showed that the CSBs inhibit corrosion by the adsorption mechanism. The PDP results show that all the three Schiff bases are mixed-type inhibitors. The formation of inhibitor films on the mild steel surface was supported by scanning electron microscopy/energy dispersive X-ray analysis and Fourier-transform infrared spectroscopy methods. The adsorption of CSBs on the mild steel surface obeys the Langmuir adsorption isotherm. The theoretical studies via density functional theory and molecular dynamics simulation corroborated the experimental results.
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Affiliation(s)
- Jiyaul Haque
- Department
of Chemistry, Indian Institute of Technology
(Banaras Hindu University), Varanasi 221005, India
| | - Vandana Srivastava
- Department
of Chemistry, Indian Institute of Technology
(Banaras Hindu University), Varanasi 221005, India
| | - Dheeraj S. Chauhan
- Center
of Research Excellence in Corrosion, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Hassane Lgaz
- Department
of Applied Bioscience, College of Life & Environment Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea
| | - Mumtaz A. Quraishi
- Department
of Chemistry, Indian Institute of Technology
(Banaras Hindu University), Varanasi 221005, India
- Center
of Research Excellence in Corrosion, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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19
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DFT Study of Azole Corrosion Inhibitors on Cu2O Model of Oxidized Copper Surfaces: II. Lateral Interactions and Thermodynamic Stability. METALS 2018. [DOI: 10.3390/met8050311] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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20
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DFT Study of Azole Corrosion Inhibitors on Cu2O Model of Oxidized Copper Surfaces: I. Molecule–Surface and Cl–Surface Bonding. METALS 2018. [DOI: 10.3390/met8050310] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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21
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Deng HH, Li KL, Zhuang QQ, Peng HP, Zhuang QQ, Liu AL, Xia XH, Chen W. An ammonia-based etchant for attaining copper nanoclusters with green fluorescence emission. NANOSCALE 2018; 10:6467-6473. [PMID: 29568837 DOI: 10.1039/c7nr09449c] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Luminescent copper nanoclusters (CuNCs) constitute a very active research topic due to their unique properties and lower cost than gold and silver NCs. In this study, we report a new, facile, and rapid top-down etching method for synthesizing luminescent CuNCs, using Cu nanoparticles (CuNPs) as the precursor and ammonia (NH3) as the etchant. The etching mechanism is systematically investigated and the optical and structural properties of the obtained CuNCs are carefully studied. The NH3-triggered etching process is very fast and the newly generated CuNCs can emit strong green fluorescence with a high quantum yield. Moreover, by coupling the urease-catalyzed hydrolysis of urea with the NH3-induced etching of CuNPs, we developed a novel fluorescence turn-on assay for urea. The linear range for urea detection is from 0.25 to 5 mM, and the limit of detection is 0.01 mM. This novel sensing approach, with good sensitivity and excellent selectivity, is then successfully utilized to detect urea in human serum samples, demonstrating its great potential in clinical diagnosis. In addition, the proposed coupling method can be extended to monitor other analytes that influence the size-focusing etching process, allowing metal NCs to be used to construct diverse chemosensors and biosensors.
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Affiliation(s)
- Hao-Hua Deng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China.
| | - Ke-Lin Li
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China.
| | - Quan-Quan Zhuang
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China. and Department of Pharmacy, Affiliated Quanzhou First Hospital of Fujian Medical University, Quanzhou 362000, China
| | - Hua-Ping Peng
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China.
| | - Qiong-Qiong Zhuang
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China.
| | - Ai-Lin Liu
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China.
| | - Xing-Hua Xia
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Wei Chen
- Higher Educational Key Laboratory for Nano Biomedical Technology of Fujian Province, Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou 350004, China.
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22
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Chiter F, Bonnet ML, Lacaze-Dufaure C, Tang H, Pébère N. Corrosion protection of Al(111) by 8-hydroxyquinoline: a comprehensive DFT study. Phys Chem Chem Phys 2018; 20:21474-21486. [DOI: 10.1039/c8cp03312a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The corrosion protective 8HQ monolayer on Al(111).
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Affiliation(s)
- Fatah Chiter
- CIRIMAT, Université de Toulouse
- CNRS
- INPT-ENSIACET 4
- 31030 Toulouse Cedex 4
- France
| | - Marie-Laure Bonnet
- CIRIMAT, Université de Toulouse
- CNRS
- INPT-ENSIACET 4
- 31030 Toulouse Cedex 4
- France
| | | | - Hao Tang
- CEMES
- UPR CNRS 8011
- 31055 Toulouse Cedex 4
- France
| | - Nadine Pébère
- CIRIMAT, Université de Toulouse
- CNRS
- INPT-ENSIACET 4
- 31030 Toulouse Cedex 4
- France
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23
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CO 2 reduction to acetate in mixtures of ultrasmall (Cu) n ,(Ag) m bimetallic nanoparticles. Proc Natl Acad Sci U S A 2017; 115:278-283. [PMID: 29279386 DOI: 10.1073/pnas.1713962115] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Monodispersed mixtures of 6-nm Cu and Ag nanoparticles were prepared by electrochemical reduction on electrochemically polymerized poly-Fe(vbpy)3(PF6)2 film electrodes on glassy carbon. Conversion of the complex to poly-Fe(vbpy)2(CN)2 followed by surface binding of salts of the cations and electrochemical reduction gave a mixture of chemically distinct clusters on the surface, (Cu) m ,(Ag) n |polymer|glassy carbon electrode (GCE), as shown by X-ray photoelectron spectroscopy (XPS) measurements. A (Cu)2,(Ag)3|(80-monolayer-poly-Fe(vbpy)32+|GCE electrode at -1.33 V vs. reversible hydrogen electrode (RHE) in 0.5 M KHCO3, with 8 ppm added benzotriazole (BTA) at 0 °C, gave acetate with a faradaic efficiency of 21.2%.
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24
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In-situ monitoring the inhibition effect of benzotriazole on copper corrosion by electrochemical noise technique. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.07.037] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Singh D, Silakari O. Facile alkylation of 4-nitrobenzotriazole and its platelet aggregation inhibitory activity. Bioorg Med Chem 2017; 25:5260-5267. [PMID: 28789912 DOI: 10.1016/j.bmc.2017.07.045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 05/20/2017] [Accepted: 07/26/2017] [Indexed: 01/06/2023]
Abstract
We explored the facile alkylation of 4-nitrobenzotriazole under basic conditions and the synthesized derivatives were tested for their potential ADP induced platelet aggregation inhibition activity in comparison with standard drug ticagrelor (selective P2Y12 inhibitor). The nitro group at 4-position is highly activating toward alkylation reactions (under strong basic conditions) and resulted in formation of degradation product like 3-nitrobenzene-1,2-diamine which make isolation of alkyl products very difficult. We optimized the reaction under mild basic condition (potassium carbonate and DMF) which is devoid of any degradation product. This is perhaps the first report of 4-nitrobenzotriazole derivatives possessing platelet aggregation inhibitory activity. Generally activity increases with increase in length of alkyl chain and 1-alkyl positional isomers were found to be more potent than 2-alkyl isomers. The benzoyl derivative was found to be the most potent [compound 22; (4-Nitro-1H-benzotriazol-1-yl)(phenyl)methanone; IC50=0.65±0.10mM] which may be attributed to electronegative oxygen atom and aromatic ring. Benzyl derivatives [compound 20; 1-Benzyl-4-nitro-1H-benzotriazole; IC50=0.81±0.08mM, compound 21; 2-Benzyl-4-nitro-2H-benzotriazole; IC50=0.82±0.19mM] and sulfonyl derivative [compound 23; 1-[(4-Methylphenyl)sulfonyl]-4-nitro-1H-benzotriazole; IC50=0.82±0.19mM] are also found to be highly active. Furthermore, all compounds possess P2Y12 binding affinity as confirmed by VASP/P2Y12 phosphorylation assay.
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Affiliation(s)
- Dhandeep Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala 147002, Punjab, India
| | - Om Silakari
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala 147002, Punjab, India.
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26
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Guo L, Qi C, Zheng X, Zhang R, Shen X, Kaya S. Toward understanding the adsorption mechanism of large size organic corrosion inhibitors on an Fe(110) surface using the DFTB method. RSC Adv 2017. [DOI: 10.1039/c7ra04120a] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Compared with the conventional DFT approach, SCC-DFTB method is more effective to deal with the adsorption issues of large size organic corrosion inhibitors on metal surface.
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Affiliation(s)
- Lei Guo
- College of Material and Chemical Engineering
- Tongren University
- Tongren 554300
- China
| | - Chengwei Qi
- School of Petroleum Engineering
- Chongqing University of Science and Technology
- Chongqing 401331
- China
| | - Xingwen Zheng
- Material Corrosion and Protection Key Laboratory of Sichuan Province
- Zigong 643000
- China
| | - Renhui Zhang
- College of Material and Chemical Engineering
- Tongren University
- Tongren 554300
- China
| | - Xun Shen
- College of Material and Chemical Engineering
- Tongren University
- Tongren 554300
- China
| | - Savaş Kaya
- Cumhuriyet University
- Faculty of Science
- Department of Chemistry
- Sivas 58140
- Turkey
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27
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Turk M, Walters M, Roy D. Experimental considerations for using electrochemical impedance spectroscopy to study chemical mechanical planarization systems. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2016.12.062] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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28
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Liu A, Ren X, An M. A composite additive used for a new cyanide-free silver plating bath (II): an insight by electrochemical measurements and quantum chemical calculation. NEW J CHEM 2017. [DOI: 10.1039/c7nj02638b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BPY and PAT are effective additives for silver plating due to their ability for strong adsorption on silver surfaces.
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Affiliation(s)
- Anmin Liu
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin
- China
| | - Xuefeng Ren
- School of Food and Environment
- Dalian University of Technology
- Panjin
- China
| | - Maozhong An
- State Key Laboratory of Urban Water Resource and Environment
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- China
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29
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Grillo F, Garrido Torres JA, Treanor MJ, Larrea CR, Götze JP, Lacovig P, Früchtl HA, Schaub R, Richardson NV. Two-dimensional self-assembly of benzotriazole on an inert substrate. NANOSCALE 2016; 8:9167-77. [PMID: 27074372 DOI: 10.1039/c6nr00821f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The ultra-high vacuum (UHV) room temperature adsorption of benzotriazole (BTAH), a well-known corrosion inhibitor for copper, has been investigated on the pristine Au(111) surface using a combination of surface sensitive techniques. The dimensionality of the molecule is reduced from the 3D crystal structure to a 2-dimensional surface confinement, which induces the formation of hydrogen bonded 1-dimensional molecular chains consisting of alternating pro-S and pro-R enantiomers mainly. The 0-dimensional system is characteristic of gas-phase BTAH, which undergoes a tautomeric equilibrium, with consequences for the resulting adsorbed species. The balance between hydrogen bonding, inter-chain van der Waals interactions and surface-molecule interactions, and the correlation with the dimensionality of the system, are discussed in light of the experimental results and a computational description of the observed features.
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Affiliation(s)
- F Grillo
- EaStCHEM and School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, UK.
| | - J A Garrido Torres
- EaStCHEM and School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, UK.
| | - M-J Treanor
- EaStCHEM and School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, UK.
| | - C R Larrea
- EaStCHEM and School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, UK.
| | - J P Götze
- EaStCHEM and School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, UK.
| | - P Lacovig
- Elettra - Sincrotrone Trieste, S.C.p.A., S.S. 14 Km 163.5, 34149 Basovizza, Trieste, Italy
| | - H A Früchtl
- EaStCHEM and School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, UK.
| | - R Schaub
- EaStCHEM and School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, UK.
| | - N V Richardson
- EaStCHEM and School of Chemistry, University of St. Andrews, St. Andrews, KY16 9ST, UK.
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30
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Gustinčič D, Kokalj A. A DFT study of adsorption of imidazole, triazole, and tetrazole on oxidized copper surfaces: Cu2O(111) and Cu2O(111)-w/o-CuCUS. Phys Chem Chem Phys 2015; 17:28602-15. [DOI: 10.1039/c5cp03647j] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Adsorption of azoles on thermodynamically inferior Cu2O(111) is so much stronger than on superior Cu2O(111)-w/o-CuCUS that it compensates its thermodynamic deficiency, unless the conditions are too oxygen rich and/or azole lean.
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Affiliation(s)
- Dunja Gustinčič
- Department of Physical and Organic Chemistry
- Jožef Stefan Institute
- SI-1000 Ljubljana
- Slovenia
- Faculty of Chemistry and Chemical Technology
| | - Anton Kokalj
- Department of Physical and Organic Chemistry
- Jožef Stefan Institute
- SI-1000 Ljubljana
- Slovenia
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31
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Scully JR. Corrosion chemistry closing comments: opportunities in corrosion science facilitated by operando experimental characterization combined with multi-scale computational modelling. Faraday Discuss 2015; 180:577-93. [PMID: 26114392 DOI: 10.1039/c5fd00075k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recent advances in characterization tools, computational capabilities, and theories have created opportunities for advancement in understanding of solid–fluid interfaces at the nanoscale in corroding metallic systems. The Faraday Discussion on Corrosion Chemistry in 2015 highlighted some of the current needs, gaps and opportunities in corrosion science. Themes were organized into several hierarchical categories that provide an organizational framework for corrosion. Opportunities to develop fundamental physical and chemical data which will enable further progress in thermodynamic and kinetic modelling of corrosion were discussed. These will enable new and better understanding of unit processes that govern corrosion at the nanoscale. Additional topics discussed included scales, films and oxides, fluid–surface and molecular–surface interactions, selected topics in corrosion science and engineering as well as corrosion control. Corrosion science and engineering topics included complex alloy dissolution, local corrosion, and modelling of specific corrosion processes that are made up of collections of temporally and spatially varying unit processes such as oxidation, ion transport, and competitive adsorption. Corrosion control and mitigation topics covered some new insights on coatings and inhibitors. Further advances inoperandoorin situexperimental characterization strategies at the nanoscale combined with computational modelling will enhance progress in the field, especially if coupling across length and time scales can be achieved incorporating the various phenomena encountered in corrosion. Readers are encouraged to not only to use thisad hocorganizational scheme to guide their immersion into the current opportunities in corrosion chemistry, but also to find value in the information presented in their own ways.
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Affiliation(s)
- John R. Scully
- Center for Electrochemical Science and Engineering
- Department of Materials Science and Engineering
- SEAS
- University of Virginia
- Charlottesville
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