International Journal of Electrochemical Science最新文献

{"title":"Electrochemical detection of hydroquinone using yttrium oxide-nafion modified glassy carbon electrodes","authors":"Gloria A. Cosco-Salguero ,&nbsp;Edgar Nagles ,&nbsp;Johisner Penagos-Llanos ,&nbsp;Rodrigo Segura ,&nbsp;John Hurtado","doi":"10.1016/j.ijoes.2025.101151","DOIUrl":"10.1016/j.ijoes.2025.101151","url":null,"abstract":"<div><div>In this article, we report for the first time a novel method for developing modified electrodes using only yttrium oxide and Nafion on glassy carbon (N-Y_OX/GCE) as well as the application of this method for detecting hydroquinone (HQ). Cyclic voltammetry (CV) and scanning electron microscopy (SEM) were used to characterize the surface and activity of N-Y_OX/GCE. This simple electrode showed higher selectivity for the electrooxidation of HQ than catechol, with a limit of detection of 1.0 µmol/L under acidic conditions. The utility of the sensor was tested with real samples of human urine and drinking water spiked with hydroquinone.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 11","pages":"Article 101151"},"PeriodicalIF":2.4,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144885880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thickness-dependent hydrogen evolution performance of 0.18Ag-Ag0.80Ni0.2NNi3 antiperovskite thin film prepared by chemical solution deposition","authors":"Li Zhang ,&nbsp;Lili Zhu ,&nbsp;Renhuai Wei ,&nbsp;Xuebin Zhu","doi":"10.1016/j.ijoes.2025.101150","DOIUrl":"10.1016/j.ijoes.2025.101150","url":null,"abstract":"<div><div>Antiperovskite metal nitrides as a special type of transition metal nitrides are considered as potential candidates for hydrogen evolution reaction (HER) electrocatalysts, showing flexible composition modulation. Here, the thin film thickness dependent HER properties were investigated for new type antiperovskite 0.18Ag-Ag_0.80Ni_0.20NNi₃ thin films prepared by chemical solution deposition. It was observed that with the thin film thickness increasing, the thin film porosity was first enhanced and then decreased. The HER overpotential in alkaline media showed thickness dependent tendency and the lowest potential was for the thin film with thickness about 1 μm. The results will shed light on optimization of HER performance of antiperovskite metal nitrides and provide a feasible route to optimize the HER performance of thin film-type HER catalysts prepared by chemical solution deposition (CSD).</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 10","pages":"Article 101150"},"PeriodicalIF":2.4,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144809488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of chitosan/ZnTiO₃ nanocomposite as an electrochemical sensor for vitamin D detection in dairy products","authors":"Yingnan Zhang ,&nbsp;Yunyao Jiang ,&nbsp;Ying Liu ,&nbsp;Liang Zhou ,&nbsp;Xueting Zhang","doi":"10.1016/j.ijoes.2025.101148","DOIUrl":"10.1016/j.ijoes.2025.101148","url":null,"abstract":"<div><div>Vitamin D deficiency is linked to osteoporosis, cardiovascular diseases, and immune dysfunction, making rapid detection crucial for clinical and nutritional management. In this work, a novel immunosensor for determining the presence of vitamin D3 (V-D3) is developed and validated utilizing an electrode modified with a bovine serum albumin and vitamin D3 antibody, which is made of zinc titanate (ZnTiO₃) and chitosan nanocomposites on a glassy carbon electrode. The immunosensor exhibited a wide linear range from 1 to 870 ng/mL and a low detection limit of 0.071 ng/mL with high sensitivity (0.1139 µA/ngmL⁻¹). The repeatability test indicated no change in more than 15 successive measurements, and the value of the relative standard deviation (RSD) of the reproducibility tests was obtained to be 3.52 %. The immunosensor showed high selectivity in response to V-D3 and low interference by common blood proteins and metabolites. Spiking materials gave recovery between 86.64 % and 93.50 %, RSD ≤ 4.81 %, which also demonstrated perfect agreement with immunosorbent enzyme-linked assay (ELISA) in real samples of human blood and dairy products. The measurement of vitamin D in food samples is important to monitor the amount of intake and the risk of deficiency, which associates with a variety of health problems. These results illustrate the potential of clinical diagnosis and food safety monitoring with the immunosensor.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 10","pages":"Article 101148"},"PeriodicalIF":2.4,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144860964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fast-response indium aluminum gallium oxide UV photodetectors with improved responsivity","authors":"Tsung-I Liao ,&nbsp;Sheng-Po Chang","doi":"10.1016/j.ijoes.2025.101146","DOIUrl":"10.1016/j.ijoes.2025.101146","url":null,"abstract":"<div><div>In this work, we fabricated indium aluminum gallium oxide (IAGO) metal-semiconductor-metal photodetectors (PDs) with varying RF powers of the indium oxide target (P_In), and their optoelectronic characteristics were systematically investigated. At P_In below 60 W, the PDs showed relatively low photocurrent and poor responsivity. When P_In increased to 100 W, both the responsivity and rejection ratio (<em>RR</em>) improved significantly. The optimal photoresponse was achieved at a P_In of 100 W, exhibiting a maximum responsivity of 0.02 A/W at 280 nm and a <em>RR</em> of approximately 6.14 × 10 ³ . Furthermore, devices with P_In above 60 W demonstrated fast time-resolved responses with rise times under 1 s and decay times below 0.5 s, indicating their potential for UV photodetection applications.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 10","pages":"Article 101146"},"PeriodicalIF":2.4,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical detection of phosphate in agricultural fertilizers using a polypyrrole/carbon nanorod–molybdenum dioxide composite electrode","authors":"Fang Gang Hong,&nbsp;Lang Tao Gao","doi":"10.1016/j.ijoes.2025.101147","DOIUrl":"10.1016/j.ijoes.2025.101147","url":null,"abstract":"<div><div>In this work, we designed a new composite sensor for the sensitive<!--> <!-->and selective detection of phosphate ions (PO₄³⁻) by using polypyrrole (PPy), carbon nanorods (CNRs), and molybdenum dioxide (MoO₂) as the electrode material. Carbon nanorods were<!--> <!-->fabricated by the carbonization of electrospun polyacrylonitrile nanofibers and the composite electrode was prepared by simple electrodeposition. The<!--> <!-->synergistic effect of PPy, MoO₂, and CNRs improved the electrochemical responses of the sensor. The sensor displayed a broad linear range between 3 and 1065 μM with a low detection limit of 0.015 μM, and it showed outstanding selectivity, stability, and repeatability, thereby enabling trace-level detection of phosphate in agricultural fertilizers and environmental samples. This PPy/CNR–MoO₂<!--> <!-->sensor can be potentially used for environmental monitoring and agricultural management with the goal to decrease phosphate-related pollution in practice.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 10","pages":"Article 101147"},"PeriodicalIF":2.4,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144809331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ni-decorated porous dendritic Cu film on Cu foam for enhanced hydrazine oxidation catalysis","authors":"Ran Liu ,&nbsp;Yuting Luan ,&nbsp;Shuang Sheng ,&nbsp;Jinling Yin","doi":"10.1016/j.ijoes.2025.101142","DOIUrl":"10.1016/j.ijoes.2025.101142","url":null,"abstract":"<div><div>Two major challenges limit the widespread use of direct hydrazine fuel cells (DHFCs): slow hydrazine oxidation reaction (HzOR) kinetics and the reliance on expensive noble-metal catalysts. To overcome these limitations, a Ni-Cu film/Cu foam (CF) electrode was developed through a two-stage electrochemical deposition approach. This process involved initially depositing a three-dimensional (3D) porous dendritic Cu film onto a CF substrate (denoted as Cu film/CF), followed by the controlled electrodeposition of Ni nanoparticles onto the prepared Cu film. The well-designed Ni-Cu film/CF electrode demonstrated noticeable superiority in terms of catalytic activity over single-metal electrodes and commercial Pt/C catalyst, displaying a current density (<em>j</em>) of 295.1 mA cm⁻² at −0.65 V and an onset potential (<em>E</em>_on) of −1.1 V. Electrochemical kinetic parameters were determined, revealing that the Ni-Cu film/CF electrode exhibited a reduced activation energy (<em>E</em>_a), diminished charge-transfer resistance (<em>R</em>_ct), and an increased electrochemically active surface area (ECSA) compared to its monometallic electrodes. The electrocatalytic performance enhancement stems from the unique 3D porous dendritic shape of the Ni-Cu film/CF electrode in conjunction with synergistic Ni-Cu effect, which promotes electron transport, facilitates accessibility to catalytic sites, and optimizes HzOR kinetics.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 10","pages":"Article 101142"},"PeriodicalIF":2.4,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144723779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Front Matter1:Full Title Page","authors":"","doi":"10.1016/S1452-3981(25)00211-1","DOIUrl":"10.1016/S1452-3981(25)00211-1","url":null,"abstract":"","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 9","pages":"Article 101136"},"PeriodicalIF":1.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144714497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Black tea extract as a corrosion inhibitor for X70 steel in chloride media: Experimental and theoretical investigation","authors":"Reza Hatami,&nbsp;Mohamadamin Amarzadeh,&nbsp;Hadi Eskandri,&nbsp;Iman Danaee","doi":"10.1016/j.ijoes.2025.101140","DOIUrl":"10.1016/j.ijoes.2025.101140","url":null,"abstract":"<div><div>The increased emphasis on sustainability and environmental concerns in metal corrosion is paramount, often achieved through the use of inhibitors, especially by utilizing plant extracts, which is a promising approach due to their availability and ease of extraction. Herein, for the first time, the effectiveness of the black tea inhibitor as a sustainable potent corrosion inhibitor for X70 steel under 3.5 wt% NaCl and 1 M HCl aggressive test solutions is explored, from both experimental and theoretical insights. The corrosion morphology was investigated using atomic force microscopy (AFM), which confirmed the presence of a protective adsorbed layer on the X70 steel surface. By aiding polarization examinations, electrochemical impedance spectroscopy (EIS), and electrochemical current noise analyses, the anti-corrosion capability and the mechanism of the proposed inhibitor were evaluated. The polarization analysis results revealed that in the presence of 200 ppm black tea extract inhibitor, the rates of both cathodic and anodic reactions were significantly decreased, resulting in a reduction in corrosion rate from 0.01 to 0.003 mg/s in NaCl solution and from 0.22 to 0.02 mg/s in HCl medium. Regarding the EIS findings, the most significant inhibition efficiency, approximately 66 %, was achieved after introducing just 200 ppm of black tea extract under the explored corrosive media. Additionally, the density functional theory (DFT) was employed to investigate the electronic properties of the molecules responsible for the inhibitory performance of the as-made black tea inhibitor. Furthermore, a Monte Carlo (MC) simulation and the molecular electrostatic potential (MESP) surface were employed to further comprehend the adsorption mechanism of these molecules on Fe(110) surfaces. The acquired outcomes manifested that the black tea extract possesses significant corrosion inhibition potential for the X70 steel plates.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 10","pages":"Article 101140"},"PeriodicalIF":2.4,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrooxidation of ethanol on silver-reduced graphene oxide (Ag/rGO) surface – Effect of alloying with palladium","authors":"Vhahangwele Mudzunga ,&nbsp;Olayemi J. Fakayode ,&nbsp;Bakang M. Mothudi ,&nbsp;Touhami Mokrani ,&nbsp;Nobanathi Wendy Maxakato ,&nbsp;Rudzani Sigwadi","doi":"10.1016/j.ijoes.2025.101141","DOIUrl":"10.1016/j.ijoes.2025.101141","url":null,"abstract":"<div><div>The study examined the impact of alloying palladium (Pd) with silver-reduced graphene oxide (AgrGO) nanocomposites on ethanol electrooxidation. The electrocatalysts were synthesised using wet chemical method and characterized using conventional spectroscopic and microscopic techniques. The Pd₁Ag₁rGO composite demonstrated superior performance compared to Pd₂Ag₁rGO and AgrGO, attributed to its relatively smaller particle size of 5.3 nm, which enhances catalytic activity, a higher density of defects for better electron transfer, and improved electrochemical properties. It achieved an impressive exchange current density of 1.70 µA cm⁻², indicating rapid reaction kinetics, alongside lower charge transfer resistance. This research highlights the potential of Pd₁/Ag₁-rGO nanocomposites as an alternative to platinum electrocatalyst for efficient ethanol oxidation, supporting advancements in sustainable fuel cell technologies.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 10","pages":"Article 101141"},"PeriodicalIF":2.4,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144739331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances in single-atom catalysts for high-performance carbon dioxide electroreduction: Synthetic strategies and electrochemical frontiers","authors":"Hai Wang ,&nbsp;Linwei Yan","doi":"10.1016/j.ijoes.2025.101131","DOIUrl":"10.1016/j.ijoes.2025.101131","url":null,"abstract":"<div><div>The electrochemical carbon dioxide reduction reaction (CO₂RR) represents a cornerstone technology for mitigating greenhouse gas emissions while simultaneously producing value-added chemicals and fuels from a renewable carbon source. The development of this technology hinges on the design of highly active, selective, and stable electrocatalysts. Single-atom catalysts (SACs), which feature atomically dispersed metal centers anchored on a support material, have emerged as a frontier in catalysis science, offering unprecedented opportunities for CO₂RR. By maximizing atom-utilization efficiency and providing a unique, tunable coordination environment, SACs bridge the gap between homogeneous and heterogeneous catalysis, enabling both high performance and fundamental mechanistic understanding. This review provides a comprehensive and critical analysis of recent breakthroughs in the field of SACs for CO₂RR. We first delve into advanced synthetic strategies, including wet-chemistry methods, high-temperature pyrolysis, and atomic layer deposition, with a focus on the principles governing the formation and stabilization of isolated atomic sites. Subsequently, we survey the electrochemical frontiers, systematically evaluating the performance of state-of-the-art SACs for the selective production of key products such as carbon monoxide (CO), formate (HCOOH), and multicarbon (C2 +) compounds. A central theme of this review is the elucidation of structure-performance relationships, where we connect synthetic control over the catalyst's atomic and electronic structure with its resulting electrochemical behavior, highlighting insights gained from a powerful combination of operando spectroscopic techniques and density functional theory (DFT) calculations. Finally, we address the overarching challenges that currently impede the practical application of SACs—notably issues of stability, scalability, and performance in industrial-relevant devices—and offer a forward-looking perspective on the future research directions poised to overcome these hurdles, including the design of multi-atom active sites and the integration of artificial intelligence in catalyst discovery.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"20 10","pages":"Article 101131"},"PeriodicalIF":2.4,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}