International Journal of Electrochemical Science最新文献

{"title":"Study on the corrosion resistance of electrodeposited NiW/TiO2 composite coating and its application in methylene blue degradation in simulated wastewater","authors":"Sun Li ,&nbsp;Zhang Xianzhen ,&nbsp;Jia Qihua ,&nbsp;Zhang Zhongming ,&nbsp;Zhang Huabo","doi":"10.1016/j.ijoes.2024.100875","DOIUrl":"10.1016/j.ijoes.2024.100875","url":null,"abstract":"<div><div>NiW/TiO₂ composite coatings were electrodeposited on the surface of Q235B steel to investigate the effect of different TiO₂ particle concentrations on the deposition rate, thickness, chemical composition, and surface morphology of the composite coatings. The corrosion resistance of the NiW/TiO₂ composite coatings and their photocatalytic degradation of methylene blue in simulated wastewater were examined and verified. The NiW/TiO₂ composite coating electrodeposited from a plating solution with 15 g/L TiO₂ particle exhibited the fastest deposition rate (402 mg/h) and the largest thickness (23.92 μm). All electrodeposited NiW/TiO₂ composite coatings comprised C, Ti, Ni and W, with granular surface morphology. Increasing the TiO₂ particle concentration in the plating solution enhanced the mass transfer rate of Ni ions, thereby increasing the Ni and Ti contents in the composite coating. However, at an excessive TiO₂ particle concentration of 20 g/L, the viscosity increased and the transfer rate of particles and nickel ions decreased, resulting in a decrease in the Ni and Ti contents in the composite coating. Among all NiW/TiO₂ composite coatings, the NiW/TiO₂ composite coating electrodeposited from a plating bath containing 15 g/L TiO₂ particle demonstrated optimal corrosion resistance with the most positive corrosion potential (-0.533 V) and the lowest corrosion current density (8.6×10⁻⁶ A/cm²). The electrodeposited NiW/TiO₂ composite coatings effectively degraded the methylene blue in the simulated wastewater, achieving an optimal degradation efficiency of 60.7 %.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing corrosion resistance of Q355B steel in marine environments using graphene doped inorganic zinc-rich coatings","authors":"Junhua Liu ,&nbsp;Ying Wu ,&nbsp;Fengwei Yan ,&nbsp;Yu Yan ,&nbsp;Fei Wang ,&nbsp;Guangchao Zhang ,&nbsp;Ling Zeng ,&nbsp;Yin Ma ,&nbsp;Jiahao Guo ,&nbsp;Yuchun Li","doi":"10.1016/j.ijoes.2024.100872","DOIUrl":"10.1016/j.ijoes.2024.100872","url":null,"abstract":"<div><div>Prolonged exposure of Q355B steel to the marine environment renders it susceptible to corrosion from seawater salt spray. In this study, inorganic zinc-rich coatings incorporating different components of graphene and calcium carbonate as anti-corrosion strategy were designed and aimed to improving their corrosion resistance. The anti-corrosion performance of these coating on Q355B was evaluated using scanning electron microscopy (SEM), X-ray diffraction (XRD), Potentiodynamic polarization tests and electrochemical impedance spectroscopy. Results indicated that the coating of 2G-1.5CaCO₃-ZRC exhibited a corrosion current density of 1.565 × 10⁻⁵A cm⁻² and an impedance value of 734.6 Ω after immersion in simulated seawater solution for seven days. Compared with the untreated coating, this formulation demonstrated reduced corrosion current density and increased impedance values, indicating that the incorporation of graphene and calcium carbonate effectively mitigated corrosion rates while prolonging the materials protection duration. This work delivers the potential application in the field of protection for metal structures in seaport areas.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of electrochemical fingerprints for Buzhong Yiqi Tang extract granules using diamond-graphene composite electrode","authors":"Ying Wang,&nbsp;Wei He","doi":"10.1016/j.ijoes.2024.100849","DOIUrl":"10.1016/j.ijoes.2024.100849","url":null,"abstract":"<div><div>This study presents a novel electrochemical fingerprinting method for Buzhong Yiqi Tang extract granules using a diamond-graphene composite electrode. The electrode was fabricated through chemical vapor deposition of graphene on high-pressure high-temperature synthetic diamond, resulting in a few-layer graphene coating as confirmed by Raman spectroscopy (I₂_D/I_G ratio ≈ 1.2) and XPS analysis (78 % sp² C-C signal). Cyclic voltammetry revealed four anodic and three cathodic peaks, while differential pulse voltammetry provided enhanced resolution with eight distinct oxidation peaks. The method demonstrated high sensitivity (LODs 0.08–0.15 mg/mL) and good linearity (R² &gt; 0.995) over a concentration range of 0.5–10 mg/mL. Comparison of fingerprints from individual herb extracts (Astragalus membranaceus, Panax ginseng, and Glycyrrhiza uralensis) elucidated the origins of major peaks in the Buzhong Yiqi Tang profile. Principal component analysis of fingerprints successfully differentiated between samples from three manufacturers, accounting for 87.3 % of total variance. Strong correlations (r &gt; 0.92) were observed between key DPV peak intensities and HPLC-determined concentrations of traditional chemical markers. The rapid analysis time, minimal sample preparation, and holistic representation of multiple electroactive components make this approach a promising complement to existing chromatographic methods for quality assessment of traditional Chinese medicine formulations.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synergistic inhibition effect of thioureido imidazoline and cationic surfactants with different alkyl chain lengths on X80 carbon steel in CO2-saturated NaCl solutions","authors":"Guobin Yang ,&nbsp;Huaiyan Qi ,&nbsp;Xueying Wu ,&nbsp;An Liu ,&nbsp;Shaohua Zhang ,&nbsp;Jintao Zhang","doi":"10.1016/j.ijoes.2024.100869","DOIUrl":"10.1016/j.ijoes.2024.100869","url":null,"abstract":"<div><div>The corrosion inhibition performance of the thioureido imidazoline (TU-IM) corrosion inhibitor, along with three surfactants, was assessed for X80 carbon steels in a CO₂-saturated NaCl solution using weight loss tests, electrochemical and microstructural characterization. Results demonstrate that the corrosion-inhibition efficiency of surfactants improves with increasing alkyl-chain length in the following order: cetyltrimethylammonium bromide (CTAB) &gt; tetradecyltrimethylammonium bromide (TTAB) &gt; dodecyltrimethylammonium bromide (DTAB). A synergistic corrosion inhibition effect between TU-IM and DTAB/TTAB was observed, with the best performance achieved using 10 mg/L TU-IM and 10 mg/L DTAB/TTAB (inhibition efficiency: 97.68 %), which is mainly attributed to the cooperative adsorption of both substances. By contrast, the synergistic inhibition capability of TU-IM with the surfactants decreased as the alkyl-chain length increased, and even an antagonistic effect was noted for the combination of TU-IM + CTAB owing to the competitive adsorption between the surfactant and the corrosion inhibitor.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the influence characteristics of multi-working condition parameters on membrane electrode type CO2 electrolyzer","authors":"Xianwen Zhang ,&nbsp;Hao Peng ,&nbsp;Feiyue Cao ,&nbsp;Yaoyi Cao ,&nbsp;Qingxin Liu ,&nbsp;Chizhou Tang ,&nbsp;Taotao Zhou","doi":"10.1016/j.ijoes.2024.100870","DOIUrl":"10.1016/j.ijoes.2024.100870","url":null,"abstract":"<div><div>The electrochemical conversion of carbon dioxide (CO₂) into basic chemicals or carbon-based fuels is a promising new strategy for carbon resource utilization. Within this domain, solid-electrolyte CO₂ electrolyzer demonstrate significant potential for the continuous production of pure formic acid solutions. This study, leveraging a 4 cm² visualization electrolyzer, explores the impact of three working condition parameters on performance: working voltage, gas flow rate, and the intermediate chamber water flow rate. It compares the variations in current density, formic acid concentration, and the distribution of liquid water on the cathode side under different working conditions. The results indicate that the working voltage, current density, and formic acid yield are all positively correlated; overly low gas flow rates can lead to CO₂ deficiency and diminished electrolyzer performance; concentration control of the formic acid solution is effectively achieved by adjusting the intermediate chamber water flow rate; and during the electrolyzer reaction process, almost all of the liquid water is positioned at the bends downstream of the cathode flow channel.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced mechanism of AO7 degradation by electrochemical activation of persulfate at carbon felt and electrogenerated H2O2 carbon black-modified cathodes in divided cell","authors":"Jingju Cai ,&nbsp;Qingrong Xie ,&nbsp;Ziyi Ding ,&nbsp;Jingxiao Cao ,&nbsp;Jiahao Liu ,&nbsp;Jing Xia ,&nbsp;Jixiang Yang","doi":"10.1016/j.ijoes.2024.100861","DOIUrl":"10.1016/j.ijoes.2024.100861","url":null,"abstract":"<div><div>Electrochemical activation of persulfate (EA-PS) is gradually drawing attention owing to its low energy consumption, environmental friendliness and good recycling performance. In this paper, carbon felt (CF) and carbon black modified carbon felt were (CB-CF) employed as cathodes in divided cell to degrade acid orange 7 (AO7), respectively. Different experimental parameters were discussed, including initial AO7 concentration, initial pH, current density and PS concentration. AO7 degradation in EA-PS process is followed the order of CB-CF&gt;CF, owing to the <em>in situ</em> H₂O₂ generation at CB-CF cathode. The AO7 degradation mechanism was explored in the presence of Cl^-, PO₄^3-, HCO₃^- and HA. Quenching experiment and EPR results revealed that AO7 degradation was the comprehensive effect of ^•OH, SO₄^•- and DET in CB-CF system, while in CF system it was the comprehensive effect of ^•OH, SO₄^•-, ¹O₂ and DET. This work provides a feasible strategy for EA-PS process that producing H₂O₂ <em>in suit</em> for organic contaminants degradation.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemical composition, biological activities, and anti-corrosion performance of Moroccan essential oil Thymus vulgaris from the Oued Amlil region, Taza","authors":"N. Chahboun ,&nbsp;A. Barrahi ,&nbsp;L. Koursaoui ,&nbsp;S. Mortada ,&nbsp;K. Fahsi ,&nbsp;R. Flouchi ,&nbsp;K. Karrouchi ,&nbsp;M.E.A. Faouzi ,&nbsp;M. El Faydy ,&nbsp;Hatem A. Abuelizz ,&nbsp;Abhinay Thakur ,&nbsp;K. Fikri-Benbrahim ,&nbsp;A. Zarrouk","doi":"10.1016/j.ijoes.2024.100859","DOIUrl":"10.1016/j.ijoes.2024.100859","url":null,"abstract":"<div><div>The study investigated the antibacterial, antioxidant, antidiabetic, ADMET (absorption-distribution-metabolism-excretion-toxicity) properties, and anticorrosion of essential oil extracted from <em>Thymus vulgaris collected</em> in the Oued Amlil region of Taza. The phytochemical profile of the <em>Thymus vulgaris</em> essential oil via gas chromatography-mass spectrometry (GC-MS) technique identified non-oxygenated monoterpenes (19.07 %), oxygenated monoterpenes (77.61 %), non-oxygenated sesquiterpenes (1.44 %), and oxygenated sesquiterpenes (1.88 %). The main constituents were carvacrol (59.70 %), thymol (16.5 %), and γ-terpinene (11.11 %). The in vitro microdilution antibacterial effect test showed significant activity against all tested bacteria, except for some Gram-negative bacteria (Pseudomonas, Pantoae spp.), which showed resistance. <em>Thymus vulgaris</em> oil also showed antioxidant activity, with IC₅₀ values of 5.94±0.22 µg/mL using 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging assay and 3.03±0.17 (µg/mL) using 2,2′-azino-bis-3-ethylbenzthiazoline-6-sulfonic acid (ABTS) assay. The tested oil revealed good inhibitory activity on α-amylase and α-glucosidase with IC₅₀ values of 0.92±0.02 mg/mL and 0.19±0.01 mg/mL, respectively. The ADME study of the identified phytoconstituents of <em>Thymus vulgaris</em> essential oil confirms their important pharmacokinetic and drug-like properties. Additionally, the inhibitory effect of <em>Thymus vulgaris</em> essential oil on carbon steel corrosion was evaluated using potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) techniques. The surface morphology of the uninhibited and inhibited carbon steel coupons was analyzed using scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS). Electrochemical studies showed that <em>Thymus vulgaris</em> oil acts as a good mixed corrosion inhibitor for carbon steel substrate in one molar of hydrochloric acid (1 M HCl) since an inhibition efficiency of 94.4 % was reached with 400 ppm at 303 K.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Front Matter1:Full Title Page","authors":"","doi":"10.1016/S1452-3981(24)00406-1","DOIUrl":"10.1016/S1452-3981(24)00406-1","url":null,"abstract":"","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142658772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of 2-ethoxy-4-(oxiran-2-ylmethyl)phenol as a potentially effective anti-corrosion agent for C38 steel","authors":"Abdelmalek Matine ,&nbsp;Brahim Lizoul ,&nbsp;Habib El Alaoui El Abdallaoui ,&nbsp;Ali H. Bahkali ,&nbsp;Shifa Wang ,&nbsp;Asad Syed ,&nbsp;Mohammed El idrissi ,&nbsp;Abdellah Zeroual","doi":"10.1016/j.ijoes.2024.100816","DOIUrl":"10.1016/j.ijoes.2024.100816","url":null,"abstract":"<div><div>This study presents a comprehensive investigation into the corrosion inhibition efficacy of the compound, 2-ethoxy-4-(oxiran-2-ylmethyl) phenol (EP), on C38 steel surfaces exposed to a highly corrosive 1 M HCl environment. Through a unique integration of experimental techniques—Electrochemical Impedance Spectroscopy (EIS), Potentiodynamic Polarization (PDP), Weight Loss (WL), Scanning Transmission Electron Microscopy coupled with X-ray Energy Dispersive Spectroscopy (STEM/XEDS)—and advanced theoretical methods, including Quantum Chemical Calculations (QCCs), Density Functional Theory (DFT), and Monte Carlo simulations (MCs), the study provides a deep and novel understanding of EP's corrosion inhibition mechanism. The findings reveal that EP acts as a mixed-type inhibitor, achieving a remarkable corrosion inhibition efficiency of approximately 92 % at 298 K by forming a protective layer on the steel surface. Notably, the adsorption of EP is characterized by both physisorption and chemisorption, adhering to the Langmuir isotherm model, a dual-mode mechanism that has been underexplored in similar compounds. The synergy between experimental data and theoretical simulations, particularly the use of DFT and MD simulations, elucidates the molecular interactions and adsorption behaviors that are critical to EP's effectiveness. This novel approach not only confirms EP's potential as a high-performance corrosion inhibitor but also contributes significant insights into the factors that govern corrosion inhibition, advancing the field's understanding of inhibitor design and application.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theoretical analysis of facilitated diffusion process in a liquid membrane: Adomian decomposition method","authors":"V. Silambuselvi ,&nbsp;P. Jeyabarathi ,&nbsp;Navnit Jha ,&nbsp;K. Angaleeswari ,&nbsp;TRK Kumar ,&nbsp;L. Rajendran","doi":"10.1016/j.ijoes.2024.100855","DOIUrl":"10.1016/j.ijoes.2024.100855","url":null,"abstract":"<div><div>The mathematical model of facilitated transport systems in steady-state conditions is discussed. The nonlinear component associated with chemical reactions and diffusion in nonlinear equations forms the basis of this model. By solving the nonlinear equation using the Adomian decomposition method, we can obtain the analytical expression of the concentration of species. The simple expression of the facilitation factor ( ratio between the total flux of solute and that of the absence of carrier) is also reported. The parameters' influence on species concentration and facilitation factors are discussed. A good agreement is obtained when we compare the numerical results for all parameter values with new analytical results.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}