Russian Journal of Electrochemistry最新文献_第2页

Electrochemical Performance of Magnesium-Doped Strontium Carbonate Nanoparticles for Energy Storage Applications 用于储能应用的掺镁碳酸锶纳米颗粒的电化学性能

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-09-10 DOI: 10.1134/S1023193524601657

K. Sakthiraj, B. Karthikeyan, M. Hema

{"title":"Electrochemical Performance of Magnesium-Doped Strontium Carbonate Nanoparticles for Energy Storage Applications","authors":"K. Sakthiraj, B. Karthikeyan, M. Hema","doi":"10.1134/S1023193524601657","DOIUrl":"10.1134/S1023193524601657","url":null,"abstract":"This work presents a comprehensive study of the synthesis, structural, and electrochemical characterization of pure and magnesium-doped strontium carbonate (SrCO3) nanoparticles. Powder X-ray diffraction (XRD) analysis confirmed the orthorhombic phase of SrCO3 and the presence of MgO in the doped samples. Crystallite sizes and lattice strains were determined using the Debye–Scherrer and Williamson–Hall equations, revealing compressive strain in pure SrCO3 and significant structural changes with Mg doping. Scanning electron microscopy (SEM) displayed rod-like SrCO3 particles, which diminished in size with increased Mg content. Energy-dispersive X-ray spectroscopy (EDAX) confirmed the elemental composition, showing enhanced oxygen content with Mg doping. Raman spectroscopy identified shifts in vibrational modes due to Mg addition. Electrochemical performance, investigated via cyclic voltammetry (CV), revealed that lower Mg doping (3%) enhanced specific capacitance at low scan rates and current densities. Electrochemical impedance spectroscopy (EIS) showed increased resistive behavior and capacitive properties with higher Mg content, while open circuit potential (OCP) analysis indicated improved electrochemical stability in Mg-doped samples. The results demonstrate the potential of Mg-doped SrCO3 for applications requiring enhanced electrochemical performance.","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"61 6","pages":"250 - 264"},"PeriodicalIF":0.8,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Electrochemical Behavior of Cobalt and Zinc Complexes with Methoxyphenoxyphthalocyanines 甲氧基苯氧酞菁钴锌配合物的电化学行为

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-09-10 DOI: 10.1134/S1023193525600348

A. E. Rassolova, N. M. Berezina, M. I. Bazanov, V. E. Maizlish, M. V. Tesakova, V. I. Parfenyuk

{"title":"The Electrochemical Behavior of Cobalt and Zinc Complexes with Methoxyphenoxyphthalocyanines","authors":"A. E. Rassolova, N. M. Berezina, M. I. Bazanov, V. E. Maizlish, M. V. Tesakova, V. I. Parfenyuk","doi":"10.1134/S1023193525600348","DOIUrl":"10.1134/S1023193525600348","url":null,"abstract":"The electrochemical behavior of a series of isomers of methoxyphenoxy derivatives of cobalt phthalocyanine {CoPc[4-(x-OСH3OPh)]4 and CoPc[3-(x-OСH3OPh)]4, where x = 4′, 3′, or 2′} in alkaline aqueous solutions, and also of ZnPc[4-(x-OСH3OPh)]4, where x = 4′, 3′, or 2′, in the CH2Cl2 medium is studied for the first time using cyclic voltammetry. The electrochemical behavior and the electrocatalytic activity of cobalt phthalocyanines in the reaction of dioxygen electroreduction is analyzed depending on the functional substitution in the macrocycle molecule. For CoPc[4-(x-OСH3OPh)]4 and CoPc[3-(x-OСH3OPh)]4, the processes of oxidation (Co2+ ↔ Co3+) and reduction (Co2+ ↔ Co1+) of the central metal ion are observed as well as two sequential stages of the one-electron electroreduction of the phthalocyanine ligand. It is found that these cobalt phthalocyanine derivatives can serve quite efficiently as the systems for dioxygen electroreduction. For ZnPc[4-(x-СH3OPh)]4, where x = 4′, 3′, or 2′, the formation of polyphthalocyanine films is observed during the monomer electrooxidation in dichloromethane.","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"61 6","pages":"286 - 295"},"PeriodicalIF":0.8,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comments on A. Eswari and L. Rajendran, “Mathematical Modeling of Cyclic Voltammetry for EC Reaction” in Russ. J. Electrochem. 47 (2011) 195 and “Mathematical Modeling of Cyclic Voltammetry for EC2 Reaction”, in Russ. J. Electrochem. 47 (2011) 205 对A. Eswari和L. Rajendran“EC反应循环伏安法的数学建模”的评论。[j] .电化学。47(2011)195和“EC2反应的循环伏安法数学建模”，in Russ。[j] .化学工程学报。47 (2011):205

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-09-10 DOI: 10.1134/S1023193525700041

Dieter Britz, Jörg Strutwolf

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Synthesis and ORR Performance of COF-Driven N, O Double-Doped Metal-Free Catalysts cof驱动的N， O双掺杂无金属催化剂的合成及其ORR性能

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-09-10 DOI: 10.1134/S1023193525700053

Fengjuan Ge, Jie Zhu, Yan Xu, Chunling Shi

引用次数: 0

A Sensitive Electrochemical Sensor Based on Nano-Zirconium Dioxide/Reduced Graphene Oxide Modified Electrode for Lercanidipine Determination 基于纳米二氧化锆/还原氧化石墨烯修饰电极的灵敏电化学传感器测定雷卡尼地平

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-09-10 DOI: 10.1134/S1023193524601645

Yingliang Wei, Anting Wang, Xiaoru Ren, Chunlai Wu, Fang Wang

{"title":"A Sensitive Electrochemical Sensor Based on Nano-Zirconium Dioxide/Reduced Graphene Oxide Modified Electrode for Lercanidipine Determination","authors":"Yingliang Wei, Anting Wang, Xiaoru Ren, Chunlai Wu, Fang Wang","doi":"10.1134/S1023193524601645","DOIUrl":"10.1134/S1023193524601645","url":null,"abstract":"A highly sensitive electrochemical sensor was developed for the detection of the novel antihypertensive drug lercanidipine (LCP). Using zirconium oxychloride (ZrOCl2·8H2O) and graphene oxide (GO) as raw materials, polydiallyldimethylammonium chloride (PDDA) as the eco-friendly reducing agent, nano-zirconium dioxide/reduced GO/PDDA (ZrO2–rGO–PDDA) composite was prepared by hydrothermal synthesis with doped cerium chloride. Transmission electron microscopy, Fourier transform infrared spectrum, and electrochemical impedance spectroscopy were employed to characterize ZrO2–rGO–PDDA composite. The electrochemical behavior of LCP at ZrO2–rGO–PDDA modified glassy carbon electrode (ZrO2–rGO–PDDA/GCE) was studied by voltammetry. Under optimized measurement conditions, the linear plot between the peak current of LCP and its concentration was found within the range of 4.00 × 10–7–1.58 × 10–4 mol/L, with a detection limit of 8.26 × 10–8 mol/L. This new sensor was employed successfully to determine the content of LCP drug on the market. The spiked recovery experiments showed that the recoveries of LCP ranged from 97.78 to 101.04%. The developed sensor exhibits high sensitivity and accuracy for the determination of LCP.","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"61 6","pages":"265 - 273"},"PeriodicalIF":0.8,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145028110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Retraction Note: Structural and Conductive Characteristics of Fe/Co Nanotubes 注：铁/钴纳米管的结构和导电特性

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-09-10 DOI: 10.1134/S1023193525060011

A. L. Kozlovskii, K. K. Kadyrzhanov, M. V. Zdorovets

引用次数: 0

The Raman Spectroscopy Study of the Binary Eutectic System (1 – x)(LiClO4–KClO4)–xAl2O3 二元共晶体系（1 - x）(LiClO4-KClO4) - xal2o3的拉曼光谱研究

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-08-07 DOI: 10.1134/S1023193525700028

Z. Yu. Kubataev, M. M. Gafurov, K. Sh. Rabadanov, A. M. Amirov, M. A. Akhmedov, M. G. Kakagasanov

引用次数: 0

An Electrochemical Sensor Based on Au Nanoparticles for Rapid Determination of Nitrofurazone in Aquaculture Seawater 基于金纳米粒子的电化学传感器快速测定水产养殖海水中硝基呋喃酮

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-08-07 DOI: 10.1134/S1023193524601712

Yunxia He, Jianlei Chen, Tianruo Zhang, Yang Liu, Qingkui Wang, Keming Qu, Zhengguo Cui

{"title":"An Electrochemical Sensor Based on Au Nanoparticles for Rapid Determination of Nitrofurazone in Aquaculture Seawater","authors":"Yunxia He, Jianlei Chen, Tianruo Zhang, Yang Liu, Qingkui Wang, Keming Qu, Zhengguo Cui","doi":"10.1134/S1023193524601712","DOIUrl":"10.1134/S1023193524601712","url":null,"abstract":"We have developed an electrochemical sensor for the rapid detection of nitrofurazone (NFZ) in aquaculture seawater, utilizing a glassy carbon electrode (GCE) modified with Au nanoparticles (AuNPs). Compared to the unmodified electrode, the modified electrode exhibited higher electrocatalytic activity than the GCE and could be used efficiently for the detection of NFZ. It was found that the AuNPs modified electrode exhibited a higher specific surface area, as determined by scanning electron microscopy characterization. The effects of various parameters, including the number of electrodeposition cycles for modified electrode preparation and the pH of the electrolyte for NFZ detection were optimized. Under optimized experimental conditions, the peak current and concentration of NFZ exhibited a linear relationship in the range of 3 to 100 μM when analyzed using square wave voltammetry (SWV), with a limit of detection of 0.24 μM. The proposed sensor was successfully utilized for the detection of NFZ in aquaculture seawater. The spiked recoveries ranged from 96.35 to 107% (RSD < 4.13%), indicating that the method demonstrates satisfactory accuracy and performance for detecting NFZ in real seawater.","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"61 5","pages":"189 - 197"},"PeriodicalIF":0.8,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation of Iron Doped Polymeric Dopamine Micro/Nanosphere and Its Application in Lead Ion Electrochemical Sensing 铁掺杂聚合物多巴胺微/纳米球的制备及其在铅离子电化学传感中的应用

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-08-07 DOI: 10.1134/S1023193524601360

Hong Sun, Chuan Yao, Shixing Zhang, Haiyan Xiong, Kaibo You, Shicheng Wang, Junyan Wang, Kejun Guo, Leipin Shi, Junqi Zhou

{"title":"Preparation of Iron Doped Polymeric Dopamine Micro/Nanosphere and Its Application in Lead Ion Electrochemical Sensing","authors":"Hong Sun, Chuan Yao, Shixing Zhang, Haiyan Xiong, Kaibo You, Shicheng Wang, Junyan Wang, Kejun Guo, Leipin Shi, Junqi Zhou","doi":"10.1134/S1023193524601360","DOIUrl":"10.1134/S1023193524601360","url":null,"abstract":"Monitoring of heavy metal ions Pb2+ is a meaningful topic due to their high toxicity and serious damage on human health and ecological environment. In this paper, iron doped polymeric dopamine micro/nanospheres modified glassy carbon electrodes (Fe@PDA/GCE) were prepared and for the first time applied in heavy metal Pb2+ detection. Differential pulse voltammetry (DPV) method was used for the quantitative determination of lead. The results showed that Fe@PDA/GCE exhibited excellent detection performance for Pb2+, with a wide concentration response linear range of 0.05–110 μM (10.4–22 792 μg L–1) and a low detection limit of 2.9 nM (0.6 μg L–1) (S/N = 3). This performance is comparable to or even superior to the reported electrochemical platforms for Pb2+ determination. We attributed the improvement to the enrichment effect and charge transfer ability of Fe@PDA toward Pb2+. Fe@PDA/GCE also shared many advantages such as good reproducibility, anti-interference capability and low cost, allowing actual samples detection with recovery 95.9–104.0% and RSD 1.8–2.2%. Therefore, the Fe@PDA/GCE electrochemical sensors have good application prospect in water environment monitoring.","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"61 5","pages":"198 - 207"},"PeriodicalIF":0.8,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Equilibrium and Discharge Characteristics of a Single Cell of Hydrogen–Vanadium Battery with Electrolyte of Different Acidity 不同酸度电解液对氢钒电池单体电池平衡及放电特性的影响

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-08-07 DOI: 10.1134/S102319352560018X

O. I. Istakova, D. V. Konev, D. O. Tolstel, M. A. Vorotyntsev

{"title":"Equilibrium and Discharge Characteristics of a Single Cell of Hydrogen–Vanadium Battery with Electrolyte of Different Acidity","authors":"O. I. Istakova, D. V. Konev, D. O. Tolstel, M. A. Vorotyntsev","doi":"10.1134/S102319352560018X","DOIUrl":"10.1134/S102319352560018X","url":null,"abstract":"A single-unit of rechargeable power source, the hydrogen–vanadium battery (Pt‒C)H2|Nafion|({text{VO}}_{2}^{ + })(C), is studied for various sulfuric-acid contents in the vanadium electrolyte (catholyte) over the 3–6 M range of the total amount of sulfuric-acid residues and a total concentration of vanadium compounds of 1 M. For this composition range, the dependences of the cell voltage and the half-cell potentials on the vanadyl-to-vanadate ratio in the electrolyte is determined for the open-circuit regime while the voltage and potentials shifts are measured for the current passing through the cell in both directions. The contributions to the cell voltage from both half-cell potentials as well as their polarizations are found separately by means of an external reference electrode branched to the vanadium flow electrode via a film-shaped Luggin capillary. The vanadium electrolyte conductivity is measured in the course of charge–discharge cycling and its dependence on the vanadyl-to-vanadate ratio for the series of electrolyte compositions is determined. For the high-current region, the cell maximal specific discharge power is found to decrease from 0.68 to 0.45 W/cm2 with increase of the catholyte acidity, as a consequence of the concentration polarizations of both the positive and the negative half-cells, with a much higher relative contribution from the latter one. For the low-current region (±0.25 A/cm2), the current–voltage curves of both half-cells are linear. With growing electrolyte acidity, the slope (i.e., the polarization resistance) increased in the hydrogen half-cell; decreased, in the vanadium one. As a result, their sum (i.e., the total cell resistance) increased from 0.34 to 0.39 Ω cm2 over the studied acidity range.","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"61 5","pages":"208 - 218"},"PeriodicalIF":0.8,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0