{"title":"First-row transition metal/N-doped boron phosphide monolayer as single-atom catalysts for electrochemical reduction of CO2 towards CO: A density functional theory study","authors":"Hefei Gao, Quande Che","doi":"10.1016/j.ijoes.2025.100970","DOIUrl":"10.1016/j.ijoes.2025.100970","url":null,"abstract":"<div><div>In this research, a two-dimensional (2D) single-atom system of first-row transition metal/N-doped hexagonal Boron Phosphide monolayer (MN<sub>3</sub>-BP-ML) was proposed for electrochemical CO<sub>2</sub> reduction (ECR) to CO. The corresponding ten models were constructed to calculate the adsorption free energies of the reaction intermediates and overpotentials. The density functional theory (DFT) calculation results well support that the CrN<sub>3</sub>-BP-ML is beneficial for ECR and exhibits excellent catalytic activity and selectivity. More importantly, the research reveals the catalytic activity highly correlates with the interaction effect between the transition-metal atom and the absorbed COOH intermediate for the rate determining step. The computational strategy and methodology in this research enlighten an effective way of design BP based single-atom active catalysts for ECR application at atomic level.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 4","pages":"Article 100970"},"PeriodicalIF":1.3,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454727","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":"Development of a thermally synthesized Co3O4 nanoparticle-based electrochemical sensor for synephrine detection in sports supplements","authors":"Hongyu Ma , Dan Wang","doi":"10.1016/j.ijoes.2025.100969","DOIUrl":"10.1016/j.ijoes.2025.100969","url":null,"abstract":"<div><div>This study presents the development of an enhanced electrochemical sensing platform utilizing thermally synthesized Co<sub>3</sub>O<sub>4</sub> nanoparticles for synephrine quantification in sports supplements. The nanoparticles, characterized by XRD, SEM, FTIR, and XPS, exhibited a well-defined cubic spinel structure with particle sizes ranging from 30–50 nm. XRD confirmed the material's crystallinity and structure, while SEM revealed quasi-spherical morphology and uniform particle distribution. FTIR identified Co–O stretching vibrations, validating the spinel framework, and XPS provided insights into cobalt oxidation states (Co<sup>2+</sup>/Co<sup>3+</sup>) and lattice oxygen. The modified electrode demonstrated superior electrochemical performance, with a 67 % increase in peak current response (from 85 μA to 142 μA) and improved electron transfer kinetics. Differential pulse voltammetry measurements under optimized conditions showed excellent analytical performance with two distinct linear ranges (0.1–10 μM and 10–100 μM). The method achieved high selectivity against common interferents at 100-fold excess concentrations, with minimal interference from caffeine and ephedrine at 10-fold excess. Analysis of ten commercial supplements showed synephrine recovery rates of 97.5–102.3 % with RSDs below 4.5 %. The method's stability was confirmed through intra-day (RSD = 2.5 %) and inter-day (RSD = 4.2 %) precision studies. This electrochemical platform aligns with current regulatory needs for accurate and reliable synephrine quantification, offering a rapid and cost-effective alternative to traditional chromatographic techniques. Its simplicity, scalability, and potential for integration into portable or automated systems highlight its promise for commercialization and routine quality control in the sports supplement industry. Future improvements could focus on further miniaturization and full automation to enhance its applicability in field settings.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 4","pages":"Article 100969"},"PeriodicalIF":1.3,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143402766","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}
N. Er-rahmany , M. Nounah , A. Harrati , R. Khrifou , R. Touir , H. Larhzil , J. Saranya , Hatem A. Abuelizz , R. Fakhreddine , E.H. El Kafssaoui , A. Zarrouk
{"title":"Experimental and computational identification investigations of anticorrosion of Cistus Ladaniferus essential oil for mild steel in hydrochloric solution","authors":"N. Er-rahmany , M. Nounah , A. Harrati , R. Khrifou , R. Touir , H. Larhzil , J. Saranya , Hatem A. Abuelizz , R. Fakhreddine , E.H. El Kafssaoui , A. Zarrouk","doi":"10.1016/j.ijoes.2025.100968","DOIUrl":"10.1016/j.ijoes.2025.100968","url":null,"abstract":"<div><div>The main objective of this investigation is to promote and enhance the socio-economic situation by using green product, non-toxic, and biodegradable compound to minimize metal corrosion in the industrial region. For this, Cistus ladaniferus essential oil (CLEO) was assessed as a green anticorrosion product for mild steel (MS) in 1.0 M HCl environment using electrochemical measurements and scanning electronic microscopy. After this, computational studies, including density functional theory (DFT) and molecular dynamics simulations (MDS), were used to determine and elucidate the action mode of the major components of CLEO. The potentiodynamic polarization curves indicated that CLEO reacts as cathodic type-inhibitor. The electrochemical results revealed that the anticorrosion efficiency increase with CLEO concentrations to reach 98.24 % at 1000 ppm CLEO. In addition, it is found that CLEO takes its performance at high temperature solution. Micrographic analysis demonstrated a smooth MS area with diminished roughness and the appearance of small nodular particles in the CLEO addition likened to the blank material, indicating the establishment of a protective layer on MS area. Finally, theoretical investigations helped identify the adsorption sites of CLEO molecules, especially major components, on the MS area, providing insights into the anticorrosion mechanism.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 4","pages":"Article 100968"},"PeriodicalIF":1.3,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143377923","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}
Duberney Hincapié-Ladino , José Wilmar Calderón-Hernández , João Victor de S. Araujo , Rodrigo Magnabosco , Neusa Alonso-Falleiros
{"title":"The influence of H2S on the microstructure of API 5 L X65 pipeline steel: An electrochemical approach","authors":"Duberney Hincapié-Ladino , José Wilmar Calderón-Hernández , João Victor de S. Araujo , Rodrigo Magnabosco , Neusa Alonso-Falleiros","doi":"10.1016/j.ijoes.2025.100967","DOIUrl":"10.1016/j.ijoes.2025.100967","url":null,"abstract":"<div><div>Pipelines and equipment made from microalloyed steels used in oil and gas production are exposed to aggressive environments: marine water on the exterior and hydrogen sulfide (H₂S)-rich environments inside. This study evaluated the corrosion behavior of two microalloyed steels (API 5 L X65) in solutions simulating internal and external pipeline conditions based on the NACE TM0284–11 standard. Potentiodynamic polarization was used to measure corrosion rates, and Scanning Electron Microscopy (SEM) with energy-dispersive X-ray Spectroscopy (EDS) characterized the microstructure and corrosion products. The results showed that solution B led to lower corrosion rates due to iron sulfide phase formation, while the steel without segregation bands exhibited superior performance in both solutions. Corrosion mechanisms were discussed based on experimental findings, thermodynamics, and kinetics.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 4","pages":"Article 100967"},"PeriodicalIF":1.3,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143427564","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}
Shimeng He , Kongyang Wang , Yongyang Zhao , Yao Lu , Ruijing Jiang , Jikui Li , Yong Xiang
{"title":"Comparative analysis of corrosion resistance of pipeline steels exposed to sulfate-reducing bacteria: Insights on L360, L245NS and antibacterial steels","authors":"Shimeng He , Kongyang Wang , Yongyang Zhao , Yao Lu , Ruijing Jiang , Jikui Li , Yong Xiang","doi":"10.1016/j.ijoes.2025.100960","DOIUrl":"10.1016/j.ijoes.2025.100960","url":null,"abstract":"<div><div>In response to the microbiologically influenced corrosion (MIC) issues encountered in oil and gas pipelines, a comparative study was conducted on the corrosion properties and mechanisms of pipeline steels L360, L245NS, and antibacterial steel in environments containing sulfate-reducing bacteria (SRB) using the weight-loss method, surface analysis techniques, and electrochemical tests. The results showed that both the uniform corrosion rate and pitting rate followed the order: L360 > L245NS > antibacterial steel. Electrochemical tests further confirmed that the antibacterial steel demonstrated superior corrosion resistance, with the highest self-corrosion potential and a corrosion current density one-fifth that of L360 steel. Additionally, the antibacterial steel is more prone to passivation in the SRB environment. After 7 days of exposure, the sum of its charge transfer resistance and biofilm resistance was approximately 2.9 times that of L245NS steel and 3 times that of L360 steel. The addition of Cu to the antibacterial steel may contribute to inhibiting microbial growth and preventing biofilm formation, though this mechanism is controversial.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 4","pages":"Article 100960"},"PeriodicalIF":1.3,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143376833","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}
Hongzheng Yang , Jinwen Yang , Ling Liu , Bofei Wang
{"title":"Nano-biochar derived from bamboo biomass: A dual-functional material for electrochemical sensing of ferulic acid and adsorptive removal of surfactants in cosmetic wastewater","authors":"Hongzheng Yang , Jinwen Yang , Ling Liu , Bofei Wang","doi":"10.1016/j.ijoes.2025.100959","DOIUrl":"10.1016/j.ijoes.2025.100959","url":null,"abstract":"<div><div>Nano-biochar, synthesized from bamboo biomass, was investigated as a dual-functional material for electrochemical sensing of ferulic acid in cosmetics and adsorptive removal of surfactants from cosmetic wastewater. The nano-biochar modified glassy carbon electrode (nano-biochar/GCE) exhibited excellent electrocatalytic activity towards ferulic acid oxidation, with a wide linear range (0.1–100 μM), low detection limit (30 nM), and good selectivity. The sensor was successfully applied for ferulic acid determination in real cosmetic samples, with recovery values ranging from 96.5 % to 102.8 %. Furthermore, the nano-biochar demonstrated high adsorption capacities for the removal of sodium dodecyl sulfate (SDS, 416.7 mg/g) and cetrimonium bromide (CTAB, 454.5 mg/g) from simulated cosmetic wastewater, following the Langmuir isotherm and pseudo-second-order kinetic models. Optimal removal efficiencies of 93.2 % for SDS and 95.8 % for CTAB were achieved under optimized conditions, highlighting the potential of nano-biochar for developing green analytical methods and wastewater treatment solutions in the cosmetic industry.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 4","pages":"Article 100959"},"PeriodicalIF":1.3,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143350089","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":"Evaluation of corrosion protection performance and color stability of environment-friendly pigmented polyurethane coating","authors":"Mamadou Ouedraogo , Tambi Ramdé , Boubié Guel , Stefano Rossi","doi":"10.1016/j.ijoes.2024.100923","DOIUrl":"10.1016/j.ijoes.2024.100923","url":null,"abstract":"<div><div>This research is distinctive in its focus on the corrosion protection property, the ultraviolet B radiations (UV-B) resistance, and the color stability of a polyurethane (PU) base coating formulated with 1 % wt. of an environment-friendly inorganic pigment (Bi, Ca, Zn)VO<sub>4</sub>. The pigment was synthesized and evaluated based on structure, color, and the sizes of particles. The phase composition of the synthesized pigment was studied using X-ray diffraction (XRD) analysis. Notably, the pigment's color slightly changed with its calcination's temperature, transitioning from yellow to orange. The coatings produced with a PU binder and 1 % wt. of pigment resulted in a yellow-colored coating. The color and the coating stability, as well as the barrier property of selected pigmented PU coatings, were investigated using the CIEL*a*b* color system, Fourier Transformed Infrared (FTIR) spectroscopy, and electrochemical impedance spectroscopy (EIS). The results demonstrated excellent color stability, as well as good protective barrier properties of the pigmented coating. The coatings also exhibited strong chemical stability and UV-B resistance. The high corrosion resistance and the reinforcement of the protection barrier properties of coatings were achieved via well-dispersion of the (Bi, Ca, Zn)VO<sub>4</sub> powder in the polymer matrix.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 2","pages":"Article 100923"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163350","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":"Comprehensive analysis of laser cladding coatings formed on gray cast ion substrates for brake disc applications: Electrochemical, microstructural, and mechanical studies","authors":"Zesen Zhao, Rongfa Chen, Haibo Chen, Yulong Miao, Xinhao Sun, Yihong Zhao, Zhiqiang Tang, Zhou Jiang","doi":"10.1016/j.ijoes.2025.100930","DOIUrl":"10.1016/j.ijoes.2025.100930","url":null,"abstract":"<div><div>The surface modification of HT250 gray cast iron brake disc was carried out by Ferritic Nitrocarburizing (FNC) and laser cladding. The effects of process parameters on the microstructure, mechanical properties and corrosion resistance performance of the brake disc were investigated. The results indicated that the microstructures of FNC samples were mainly white bright ε phase, and the main compositions of Ni40A coating were plane crystal, columnar crystal, dendrite and equiaxed crystal from the fusion line zone to the top zone. The grains of the coating were refined after adding WC particles, and with the increase of WC ratio, the grain refinement degree and the average hardness of the coating were improved. The Ni40A laser cladding coating with 15 wt% WC showed the best corrosion resistance.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 2","pages":"Article 100930"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163358","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}
Zhenglin Guo , Jian Wang , Qiang Fu , Ran Xiong , Sen Zhang , Weihao Hu
{"title":"Fine-tuned transfer learning and deep gated recurrent unit methods for state-of-health estimation of the whole life-cycle of lithium-ion batteries","authors":"Zhenglin Guo , Jian Wang , Qiang Fu , Ran Xiong , Sen Zhang , Weihao Hu","doi":"10.1016/j.ijoes.2025.100931","DOIUrl":"10.1016/j.ijoes.2025.100931","url":null,"abstract":"<div><div>Effectively estimating the whole-life-cycle state-of-health (SOH) of lithium-ion batteries is crucial to ensure their safety and reliability. To address this need, this paper proposes a method based on fine-tuning transfer learning and deep gate recurrent unit (DGRU) to estimate the SOH of different types of lithium-ion batteries. Firstly, the DGRU model is pre-trained by extracting highly relevant health indicators (HIs) from random known lithium-ion battery dataset to capture the dynamic characteristics of SOH over aging. Then, the fine-tuning pre-trained model is applied to the dataset of other batteries through transfer learning technology, enhancing the generalization capability of the proposed model on different battery types. Experimental results show that compared with baseline methods such as single-layer gate recurrent unit (SGRU), Gaussian process regression (GPR) and convolutional neural network (CNN), the proposed method has better comprehensive performance on different datasets. Specifically, the mean square error (MSE), mean absolute percentage error (MAPE), and the maximum error (MAXE) of the fine-tuning transfer learning-based deep gate recurrent unit (FTDGRU) model on B0006 cell are only 5.52e<sup>−4</sup>%, 0.22 %, and 0.0086, respectively, and the MSE, MAPE, and MAXE on CS2_36 cell are only 2.36e<sup>−4</sup>%,1.93 % and 0.0918, respectively. This method not only improves the accuracy of SOH estimation, but also demonstrates strong adaptability and versatility, making it widely applicable to various lithium-ion battery application scenarios.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 2","pages":"Article 100931"},"PeriodicalIF":1.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163353","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}