Article
Chemistry, Physical
Ahmed A. Farag, Arafat Toghan, Mohsen S. Mostafa, Chen Lan, Guanglu Ge
Summary: This study investigates the protective properties of efficient Schiff's base inhibitors on the environment and metals, and evaluates the corrosion inhibition performance of GSB-I and GSB-II on steel. The results demonstrate that GSB-I and GSB-II exhibit good corrosion inhibition efficiency, and also show potential biological activities against fungi, bacteria, and sulfate-reducing bacteria. The molecular configurations of GSB-I and GSB-II are found to influence the corrosion inhibition behavior in acidic environments, as determined by calculations and simulations.
Article
Metallurgy & Metallurgical Engineering
Zohreh Gaikani, Hamid Khanmohammadi, Hossein Hassannejad
Summary: Two azole-based Schiff bases, TIB and BTP, are synthesized as inhibitors for mild steel in acidic medium. The inhibitive effect is studied using weight loss, potentiodynamic polarization, and electrochemical impedance measurements. The maximum inhibition efficiencies of TIB and BTP are approximately 83% and 81%, respectively, and they behave as mixed-type inhibitors. The protective layer formed on the metal surface is confirmed through SEM, EDX, and atomic force microscopic study.
STEEL RESEARCH INTERNATIONAL
(2023)
Article
Electrochemistry
Zesheng Chen, Zheng Liu, Kun-Huan He, Guo-Cheng Han, Yiju Lv, Jiaxing Han, Xianmei Wei
Summary: Two new bis-Schiff bases corrosion inhibitors were synthesized and characterized, and their corrosion inhibition effects on carbon steel in sulfuric acid were studied. The inhibitors showed good resistance to sulfuric acid corrosion and could form inhibitor films on the surface of carbon steel.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Engineering, Chemical
Mahmood A. Albo Hay Allah, Asim A. Balakit, Hamida Idan Salman, Ali Ahmed Abdulridha, Yusuf Sert
Summary: A new aromatic Schiff base compound with azo linkage was synthesized and tested as a corrosion inhibitor for carbon steel. The compound showed excellent inhibition efficiency and formed a stable protection film on the carbon steel surface. Further investigations were conducted to understand the interaction mechanism between the compound and the metal surface using density function theory and surface morphology analysis.
JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Chemical
Saeid Karimi, Majid Rezaeivala, Mohammadreza Mokhtare, Gamze Tuzun, Koray Sayin
Summary: This study developed two new N2O2 ligands that effectively prevent carbon steel corrosion in static and dynamic hydrochloric acid solutions. Corrosion tests showed that the concentration of the ligands directly affected the corrosion resistance, with the reduced form exhibiting better inhibitory effects. The study also investigated the impact of hydrodynamic conditions on the performance of the inhibitors.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Engineering, Chemical
M. Amirian Chegeni, Majid Rezaeivala, Saeid Karimi, Avni Berisha
Summary: A novel material with superior corrosion protection capabilities for steel has been synthesized and validated through electrochemical and non-electrochemical testing methods. The reduced form (I3) exhibited exceptional protection against corrosion. The study also explored different absorption mechanisms and found that the three inhibitors adhere to the Langmuir adsorption isotherm with high correlation coefficients.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Chemistry, Multidisciplinary
Giselle Gomez-Sanchez, Octavio Olivares-Xometl, Natalya Likhanova, Paulina Arellanes-Lozada, Irina Lijanova, Victor Diaz-Jimenez, Diego Guzman-Lucero, Janette Arriola-Morales
Summary: The corrosion inhibition mechanism of API 5L X60 steel exposed to 1.0 M H2SO4 was evaluated using three vinylalkylimidazolium poly(ionic liquids) (PILs), which showed promising surface protection by surface adsorption and charge transfer processes.
Article
Biochemistry & Molecular Biology
I. A. Hermoso-Diaz, R. Lopez-Cecenes, J. P. Flores-De los Rios, L. L. Landeros-Martinez, E. Sarmiento-Bustos, J. Uruchurtu-Chavarin, J. G. Gonzalez-Rodriguez
Summary: Alpha-linolenic acid has been identified as an effective corrosion inhibitor for carbon steel in sulfuric acid, forming a protective layer and showing efficiency correlated to concentration. It exhibits higher efficiency in acidic environments and has a predominant effect on the cathodic hydrogen evolution reactions.
Article
Chemistry, Physical
Yongle Zhang, Yaoqi Pan, Pan Li, Xiaoyang Zeng, Bogeng Guo, Jianguo Pan, Linxi Hou, Xiangyu Yin
Summary: The synthesized novel Gemini surfactants exhibit excellent anti-corrosion effects with high inhibition efficiency for metal corrosion, showing limitations in their corrosion inhibition for certain metals. Experimental results demonstrate that these surfactants are effective inhibitors for metal corrosion.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Multidisciplinary
Mohamed A. Abbas, Mahmoud A. Bedair, Olfat E. El-Azabawy, Ehab S. Gad
Summary: This study evaluates the anticorrosion properties of three ethoxylate sulfanilamide inhibitor compounds on carbon steel, finding that increasing the concentration of inhibitors enhances the inhibition efficiency. Surface tests demonstrate that the compounds can effectively inhibit acid attack through chemical adsorption on the metal surface.
Review
Materials Science, Multidisciplinary
Lucas Souza, Elaine Pereira, Lioudmila Matlakhova, Viviane A. F. Nicolin, Sergio N. Monteiro, Afonso R. G. de Azevedo
Summary: Carbon steel is widely used in severe industrial conditions and is highly susceptible to corrosion. Traditional corrosion inhibitors, although effective, are toxic to humans and harmful to the environment. Ionic liquids, as a new alternative, have shown promising results as corrosion inhibitors for carbon steel in hydrochloric acid. This review presents recent advances in the application of ionic liquids for corrosion inhibition, with all results obtained from potentiodynamic polarization tests.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Multidisciplinary
P. Slepski, M. Szocinski, G. Lentka, K. Darowicki
Summary: This paper presents a new approach to monitoring corrosion rates using non-linear electrochemical impedance spectroscopy, which involves using amplitude-modulated multi-frequency ac perturbation signal to shorten the duration of measurements. By applying this method to carbon steel corrosion experiments in 1 M HCl solution, the potential of the approach was demonstrated.
Article
Chemistry, Multidisciplinary
Siyuan Zheng, Li Feng, Zhiyong Hu, Jianan Li, Hailin Zhu, Xuemei Ma
Summary: This study prepared biomass carbon quantum dots (BCQDs) through hydrothermal reaction using biomass precursors and characterized their optical properties and structural composition in detail. The corrosion inhibition performance of BCQDs was evaluated using EIS, Tafel, SEM, and TEM. The results showed that BCQDs can effectively prevent Q235 steel from corrosion in 1 M HCl medium, with the maximum inhibition efficiency of 94.1% at a concentration of 200 mg/L at 308 K. The inhibition mechanism was analyzed by FTIR, CA, and XPS, suggesting that BCQDs can inhibit metal corrosion by self-aggregation and adsorption on the metal surface due to their small size effect and functional groups containing heteroatoms, easily forming a dense protective film.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Electrochemistry
Xiumei Wang, Jiani Xing, Zongquan Huang
Summary: The Schiff base N,N'-bis(4-hydroxy-benzylidene)-triethylenetetramine (N,N'-BHMTT) showed excellent performance as a corrosion inhibitor for carbon steel in 1 M HCl, with a corrosion inhibition efficiency of up to 82.5%. It slowed both cathodic and anodic corrosion processes of carbon steel, while forming a protective film that acted as a barrier against corrosive media effectively contacting the carbon steel surface.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2021)
Article
Multidisciplinary Sciences
Ahmed Al-Amiery, Wan Nor Roslam Wan Isahak, Waleed Khalid Al-Azzawi
Summary: The corrosion inhibition properties of 2-(1,3,4-thiadiazole-2-yl)pyrrolidine (2-TP) on mild steel in a 1 M HCl solution were studied using various techniques. The results showed that 2-TP is an effective inhibitor for mild steel corrosion, with a high inhibition efficiency. The study also examined the impact of temperature, revealing that the inhibition efficiency is influenced by the concentration of 2-TP and temperature. The adsorption mechanism of 2-TP on the mild steel surface was investigated, showing that it involves both physical and chemical adsorption. Overall, this study demonstrates the potential use of 2-TP as a corrosion inhibitor in acid environments.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Physical
Rajalaxmi Sahoo, C. Reshma, D. S. Shankar Rao, C. V. Yelamaggad, S. Krishna Prasad
Summary: This study investigates the influence of the flexible spacer parity of a guest photoactive liquid crystalline dimer on the photonic bandgap features of the cholesteric and twist grain boundary smectic C phases of the host molecule. The results show that the parity of the photoactive dimer affects the width of the photonic bandgap and the blue-shift of the cholesteric phase. Additionally, the parity of the dimer also affects the layer spacing and two-dimensional periodicity of the liquid crystalline phases.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Sara Rozas, Alberto Gutierrez, Mert Atilhan, Alfredo Bol, Santiago Aparicio
Summary: This study presents a multiscale theoretical investigation on the use of bifunctional hydrophobic Deep Eutectic Solvent for carbon capture using tetrapropylammonium chloride, acetic acid, and ethanolamine. The characterization includes nanoscale analysis of CO2 absorption mechanisms and changes in liquid phase properties during gas capture.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Tabouli Eric Da-yang, Alhadji Malloum, Jean Jules Fifen, Mama Nsangou, Jeanet Conradie
Summary: In this study, the potential energy of different glycine tautomers and their interaction with Cu2+ cations was investigated. The results showed that the solvation medium and the presence of Cu2+ cations influenced the stability of glycine tautomers.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Xiaoliang Gou, Nan Ye, Qingqing Han, Junjie Cui, Long Yi Jin
Summary: In this study, amphiphilic rod-coil molecules with rigid DSA parts and flexible oligoether chains were designed and their assembly capacities were investigated. The morphology of the molecular aggregates was influenced by the pH of the solution and UV light, and the aggregates showed adsorption capacity for nitroaromatic compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Shuang Liu, Liyan Shan, Cong Qi, Wenhui Zhang, Guannan Li, Bei Wang, Wei Wei
Summary: Optimizing the design of styrene-butadiene-styrene copolymer (SBS) is crucial for producing cost-effective SBS modifiers and improving road quality. This study examined the influence of SBS content and molecular structure on viscosity and compatibility. The results showed that the viscosity contribution of SBS is determined by its molecular structure and phase morphology.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Artem A. Petrov, Ekaterina A. Titova, Aydar A. Akhmadiyarov, Ilnaz T. Rakipov, Boris N. Solomonov
Summary: This work focuses on the thermochemistry of solvation of azeotropes. The enthalpies of dissolution of azeotropes in different mediums were determined, and the impact of the structure of the azeotropes on their properties in solution was discussed. A correlation between enthalpies of solvation and molar refraction was used to determine the vaporization enthalpies of azeotropes for the first time. The results were found to be consistent with literature data, obtained using direct and calculated methods. These findings contribute to the analysis of the structure-property relationships of azeotropes.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
L. V. Kamaeva, E. N. Tsiok, N. M. Chtchelkatchev
Summary: Understanding the correlations between liquids and solids allows us to predict the thermodynamic parameter range favorable for the formation of intriguing solid phases by studying liquids. In this study, we experimentally and theoretically investigated an Al-Cu-Co system within different composition ranges, and identified high-temperature solid phases. Our findings demonstrated the correlation between the boundaries of different solid phases and undercooling and viscosity in the concentration area.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
R. Aneesh Kumar, S. Jamelah Al-Otaibi, Y. Sheena Mary, Y. Shyma Mary, Nivedita Acharjee, Renjith Thomas, Renjith Raveendran Pillai, T. L. Leena
Summary: In this study, the interactions between doped and pristine coronenes and adenine nucleobases were investigated using Density Functional Theory. The optimal configurations, adsorption energies, charge transfer, and electrical properties of each complex were calculated. It was found that doped coronene had stronger adsorption strength and charge transfer compared to pristine coronene. The stability of the complexes was attributed to non-covalent interactions in the interactive region. The change in electrical conductivity of coronenes after adsorption suggested their sensitivity towards DNA bases. The predicted energy gap and prolonged recovery time for adenine-coronene configurations indicated the potential application of pristine/doped coronene in DNA detection.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Gang Zhou, Yongwei Liu, Biao Sun, Zengxin Liu, Cuicui Xu, Rulin Liu, Qi Zhang, Yongmei Wang
Summary: The CFD-DEM method was used to simulate the dust deposition pattern in the bronchus of anchor digging drivers, revealing the highest dust concentration in the vortex region of the working face. The study also found a positive correlation between dust particle diameter and bronchial deposition rate, and a negative correlation with alveolar deposition rate.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Yan Zhang, Yafei Luo, Lingkai Tang, Mingyan E, Jianping Hu
Summary: This study investigates the effects of different transition metal decorations on B12N12 nanocages on the adsorption properties of nitrosourea drugs using computational methods. The results reveal the presence of weak non-covalent interactions between metals and nanocages, and the interaction between drugs and nanocages plays a significant role in drug adsorption. Compared to free drugs, the adsorption of drugs on nanocages can facilitate electron transfer, reduce energy gaps and chemical hardness, indicating activity at the target site.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
C. I. Alcolado, J. Poblete, L. Garcia-Rio, E. Jimenez, F. J. Poblete
Summary: In this study, the selective oxidation of aromatic aldehydes was investigated using Ru(VI) as a catalyst and hexacyanoferrate (III) as a cooxidant in an alkaline medium. The reaction mechanism involves complex reaction orders for the oxidant and the aromatic aldehyde, while the reaction order for Ru(VI) is one. The proposed mechanism includes two catalytic cycles and the formation and decomposition of complexes. Quantitative structure-activity relationship analysis showed that deactivating groups in the para-position enhance the process.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Inez A. Barbieri, Marcos L. S. Oliveira, Franciele S. Bruckmann, Theodoro R. Salles, Leonardo Zancanaro, Luis F. O. Silva, Guilherme L. Dotto, Eder C. Lima, Mu. Naushad, Cristiano R. Bohn Rhoden
Summary: This study evaluated the adsorption of zolpidem on magnetic graphene oxide and synthesized magnetic graphene oxide adsorbents for zolpidem removal. The best magnetic nanoadsorbent was found to have a removal percentage of 87.07% at specific pH and temperature conditions. The results suggest that the removal of zolpidem is related to the surface chemistry of the adsorbent rather than the surface area of graphene oxide. The adsorbent showed excellent adsorption efficiency and magnetic behavior, making it a promising material for removing zolpidem from aqueous solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Hongyan Huang, Chunquan Li, Siyuan Huang, Yuling Shang
Summary: This study examines the sensitivity of the thermal conductivity of water-based alumina nanofluids to changes in concentration, sphericity, and temperature. The results show that volume fraction and temperature have a significant impact on the thermal conductivity, while sphericity also needs to be considered. A support vector machine regression model was created to analyze the sensitivity of the thermal conductivity to different parameters. The findings indicate that temperature, sphericity, and volume fraction are the most sensitive variables.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Correction
Chemistry, Physical
V. M. Pergamenshchik, T. Bryk, A. Trokhymchuk
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Valentyn Rudenko, Anatolii Tolochko, Svitlana Bugaychuk, Dmytro Zhulai, Gertruda Klimusheva, Galina Yaremchuk, Tatyana Mirnaya, Yuriy Garbovskiy
Summary: This paper reports on the synthesis, structural characterization, spectral and nonlinear-optical properties of glass nanocomposites made of glass forming ionic liquid crystals and nanoparticles. The study reveals that by exciting the nanocomposites within their absorption band, a control over effective optical nonlinearities can be achieved, allowing the modification of the magnitude and sign of the effective nonlinear absorption coefficient. The proposed strategy using metal-alkanoates based glass-forming ionic liquid crystals and nanoparticles shows great potential for the development of nanophotonics and plasmonics technologies.
JOURNAL OF MOLECULAR LIQUIDS
(2024)