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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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He L, Wang Y, Zhang Q, Li X, Xu Y, Huang Y. Electrochemical Study on the Macro-Cell Corrosion of Pipeline Steel Partially Covered by Different Kinds of Mineral Deposits. ACS OMEGA 2023; 8:44013-44029. [PMID: 38027390 PMCID: PMC10666125 DOI: 10.1021/acsomega.3c06189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/01/2023] [Accepted: 10/31/2023] [Indexed: 12/01/2023]
Abstract
This study presents the impact of mineral deposits (SiO2, Al2O3, and CaCO3) on the corrosion behavior of X65 pipeline steel in CO2-containing brine solution with low pH. The study investigates the initiation and propagation of under deposit corrosion (UDC) using a wire beam electrode (WBE) partially covered by different mineral deposit layers, in conjunction with electrochemical measurements and surface characterization. The results indicate that the corrosion behavior varies, depending on the characteristics of the deposit. During the test period, the Al2O3-covered steel acted as the main anode with more negative potential, while the bare steel acted as the cathode. The SiO2-covered steel acted as the cathode with more positive potential and a localized FeCO3 layer formed beneath the silica mineral. The CaCO3-covered steel initially acted as an anode with a more negative potential but transformed into the cathode at the end of the test. Additionally, shallow and small pits were observed beneath the deposits with the depth in the sequence Al2O3 > SiO2 > CaCO3.
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Affiliation(s)
- Limin He
- School
of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yihan Wang
- School
of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian 116024, China
| | - Qiliang Zhang
- School
of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian 116024, China
| | - XinCheng Li
- School
of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian 116024, China
| | - Yunze Xu
- School
of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian 116024, China
- State
Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China
| | - Yi Huang
- School
of Naval Architecture and Ocean Engineering, Dalian University of Technology, Dalian 116024, China
- State
Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China
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Liu X, Wang P, Shen Y, Zheng L, Han L, Deng J, Zhang J, Wang A, Ren W, Gao F, Zhang D. Boosting SO 2-Resistant NO x Reduction by Modulating Electronic Interaction of Short-Range Fe-O Coordination over Fe 2O 3/TiO 2 Catalysts. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:11646-11656. [PMID: 35876848 DOI: 10.1021/acs.est.2c01812] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
SO2-resistant selective catalytic reduction (SCR) of NOx remains a grand challenge for eliminating NOx generated from stationary combustion processes. Herein, SO2-resistant NOx reduction has been boosted by modulating electronic interaction of short-range Fe-O coordination over Fe2O3/TiO2 catalysts. We report a remarkable SO2-tolerant Fe2O3/TiO2 catalyst using sulfur-doped TiO2 as the support. Via an array of spectroscopic and microscopic characterizations and DFT theoretical calculations, the active form of the dopant is demonstrated as SO42- residing at subsurface TiO6 locations. Sulfur doping exerts strong electronic perturbation to TiO2, causing a net charge transfer from Fe2O3 to TiO2 via increased short-range Fe-O coordination. This electronic effect simultaneously weakens charge transfer from Fe2O3 to SO2 and enhances that from NO/NH3 to Fe2O3, resulting in a remarkable "killing two birds with one stone" scenario, that is, improving NO/NH3 adsorption that benefits SCR reaction and inhibiting SO2 poisoning that benefits catalyst long-term stability.
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Affiliation(s)
- Xiangyu Liu
- International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Penglu Wang
- International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Yongjie Shen
- International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Lupeng Han
- International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Jiang Deng
- International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Jianping Zhang
- International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Aiyong Wang
- International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Wei Ren
- International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
| | - Feng Gao
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99354, United States
| | - Dengsong Zhang
- International Joint Laboratory of Catalytic Chemistry, College of Sciences, Shanghai University, Shanghai 200444, China
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Ren X, Xia M, Chong B, Yan X, Lin B, Yang G. Transition metal modified 3DOM WO3 with activated N N bond triggering high-efficiency nitrogen photoreduction. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.117734] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Chen Y, Wang X, Lai T, Liu D, Pan J, Lin L, Guan H, Luo C, Song H, Xin Y, Yan H, Hu Z. Sodium dodecylbenzene sulfonate film absorbed on magnesium alloy surface: An electrochemical, SKPFM, and molecular dynamics study. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119095] [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]
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Sun X, Wu B, Deng J, Qiu H, Hu M, Cai J, Jin X, Xu H. Synergistic Mechanism of Combined Inhibitors on the Selective Flotation of Arsenopyrite and Pyrite. ACS OMEGA 2022; 7:6302-6312. [PMID: 35224392 PMCID: PMC8867808 DOI: 10.1021/acsomega.1c06902] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
The selective action mechanism of sodium butyl xanthate (BX), ammonium salt (NH4 +), and sodium m-nitrobenzoate (m-NBO) on pyrite and arsenopyrite was examined by experiments and quantum chemistry. The experiments show that under alkaline conditions, ammonium salt (NH4 +) and m-NBO can have a strong inhibitory effect on arsenopyrite. At pH 11, the recovery rate of arsenopyrite reduces to 16%. The presence of ammonium salt (NH4 +) and m-NBO reduces the adsorption energy of BX on arsenopyrite to ΔE = -23.23 kJ/mol, which is far less than the adsorption energy on the surface of pyrite, ΔE = -110.13 kJ/mol. The results are helpful to understand the synergistic mechanism of the agent on the surface of arsenopyrite and pyrite, thus providing a reference for the selective separation of arsenopyrite.
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Affiliation(s)
- Xiaohao Sun
- School
of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
- National
Engineering Laboratory for Efficient Utilization of Indium and Tin
Resources, Liuzhou 545000, China
| | - Bozeng Wu
- School
of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
- National
Engineering Laboratory for Efficient Utilization of Indium and Tin
Resources, Liuzhou 545000, China
| | - Jiushuai Deng
- School
of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
- Engineering
Technology Research Center for Comprehensive Utilization of Rare Earth,
Rare Metal and Rare-Scattered in Non-ferrous Metal Industry, CUMTB, Beijing 100083, China
- Key
Laboratory of Separation and Processing of Symbiotic-Associated Mineral
Resources in Non-ferrous Metal Industry, CUMTB, Beijing 100083, China
| | - Hongxin Qiu
- School
of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
- National
Engineering Laboratory for Efficient Utilization of Indium and Tin
Resources, Liuzhou 545000, China
| | - Mingzhen Hu
- School
of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
- National
Engineering Laboratory for Efficient Utilization of Indium and Tin
Resources, Liuzhou 545000, China
| | - Jiaozhong Cai
- School
of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
| | - Xiaoli Jin
- School
of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
| | - Hongyang Xu
- School
of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, China
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