Russian Journal of Electrochemistry最新文献_第8页

Electrochemical Properties of Composite Metal–Polymer Material Based on Ni and PEDOT:PSS 基于Ni和PEDOT:PSS的复合金属-聚合物材料的电化学性能

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-11-18 DOI: 10.1134/S1023193525700132

G. R. Nizameeva, E. M. Lebedeva, V. V. Vorobieva, I. R. Nizameev

{"title":"Electrochemical Properties of Composite Metal–Polymer Material Based on Ni and PEDOT:PSS","authors":"G. R. Nizameeva, E. M. Lebedeva, V. V. Vorobieva, I. R. Nizameev","doi":"10.1134/S1023193525700132","DOIUrl":"10.1134/S1023193525700132","url":null,"abstract":"A new composite material based on poly(3,4-ethylenedioxythiophene) polystyrenesulfonate (PEDOT:PSS) and a network of oriented nickel fibers (NiSFs) distributed throughout the polymer matrix is considered as a possible electrode in devices of alternative energetics. The relationship between the electrochemical and electrooptical characteristics of GC/PEDOT:PSS and GC/NiSFs/PEDOT:PSS electrodes is investigated using several electrochemical methods (cyclic voltammetry, electrochemical impedance spectroscopy). By measuring cyclic voltammograms with different potential scanning rates, the mechanism of electrochemical reactions in systems GC/PEDOT:PSS and GC/NiSFs/PEDOT:PSS is studied, and their limiting stages are determined. Based on the redox potentials, the band gap is calculated for these electrodes. F, or GC/PEDOT:PSS the band gap Eg is 1.34 eV. The incorporation of a network of oriented nickel fibers into the PEDOT:PSS matrix only insignificantly narrows the band gap in the system GC/NiSFs/PEDOT:PS to 1.31 eV, which confirms that the optical properties of these materials remain almost unchanged. The GC/PEDOT:PSS and GC/NiSFs/PEDOT:PSS electrodes are studied by impedance spectroscopy. The incorporation of the network of nickel fibers into the polymer film is shown to slow down the charge transfer in the GC/NiSFs/PEDOT:PSS system, as follows from the increase in the charge-transfer resistance Ret to 171 Ω as compared with 131 Ω for unmodified GC/PEDOT:PSS. The analysis of these data makes it possible to conclude that the composite materials based on PEDOT:PSS and a network of oriented nickel fibers can be used in electrooptical devices and power generating systems.","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"61 9","pages":"576 - 585"},"PeriodicalIF":0.8,"publicationDate":"2025-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145537734","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

Conductivity of Medium Lithium Salts of Calix[n]arene Sulfonic Acids Plasticized with Propylene Carbonate 杯[n]芳烃磺酸与碳酸丙烯酯增塑的中锂盐的电导率

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-11-18 DOI: 10.1134/S1023193525700119

A. A. Knyazeva, N. V. Talagaeva, L. V. Shmygleva, A. A. Lochina, G. V. Nechaev, A. N. Lapshin, N. A. Slesarenko, A. V. Ivanov, E. A. Sanginov, V. M. Freiman, A. S. Starikov, A. V. Vinyukov

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Electrochemical Investigation of Dopamine Using BiMnO Nanoparticles Modified Glassy Carbon Electrode 纳米BiMnO修饰玻碳电极对多巴胺的电化学研究

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Russian Journal of Electrochemistry Pub Date : 2025-11-18 DOI: 10.1134/S1023193525700090

R. G. Spoorthy, G. P. Mamatha, K. M. Pallavi

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Investigation of the Mechanism of the Rare-Earth Metal Ions and Nickel Ions Co-Reduction in KCl–NaCl–CsCl Eutectic Melt 稀土金属离子与镍离子在KCl-NaCl-CsCl共晶熔体中共还原机理的研究

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-11-18 DOI: 10.1134/S1023193525700144

Kh. B. Kushkhov, A. A. Khotov, Zh. Z. Ali, F. A. Kisheva

{"title":"Investigation of the Mechanism of the Rare-Earth Metal Ions and Nickel Ions Co-Reduction in KCl–NaCl–CsCl Eutectic Melt","authors":"Kh. B. Kushkhov, A. A. Khotov, Zh. Z. Ali, F. A. Kisheva","doi":"10.1134/S1023193525700144","DOIUrl":"10.1134/S1023193525700144","url":null,"abstract":"In this work, the electrochemical behavior of dysprosium, neodymium, and lanthanum ions and their co-reduction with nickel ions on tungsten and nickel electrodes in a KCl–NaCl–CsCl eutectic melt at a temperature of 823 K is studied. The electroreduction of Ln3+ ions is found to proceed reversibly in one three-electron stage up to the polarization rates of 0.1 V/s. At the compresence of lanthanide and nickel ions, the voltammograms show reduction waves of nickel ions at potentials of –0.12…–0.3 V; those and of lanthanide ions, at –2.13…–2.18 V vs. silver/silver chloride reference electrode. In addition to these waves, the voltammograms have three more recovery waves in the potential regions: –1.68…–1.77 V; –1.95…–2.0 V; ‒2.13…–2.18 V. The appearance of these waves is connected with the joint electroreduction of lanthanide and nickel ions on the metallic nickel pre-deposited onto the tungsten electrode with a certain depolarization and formation of intermetallic phases of lanthanides and nickel of different compositions (LnxNiy). The open-circuit chronopotentiograms revealed plateaus of potential delay corresponding to the dissolution of separate phases of intermetallides. Electrolysis under potentiostatic condition at potentials –1.7…–2.1 V and at certain concentrations ratio of lanthanide and nickel chlorides produced intermetallic phases LnNi5, Ln2Ni7, Ln2Ni3, LnNi3, and LnNi2. The synthesized samples of lanthanide and nickel intermetallides were characterized by X-ray diffraction analysis and scanning electron microscopy. The e.m.f. for LnxNiy intermetallic compounds in two-phase coexisting states at 823 K is measured. The relative partial molar Gibbs free energy and activity values for lanthanide in the LnxNiy intermetallic compounds were calculated from the measured e.m.f. s.","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"61 9","pages":"586 - 603"},"PeriodicalIF":0.8,"publicationDate":"2025-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145537735","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}

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Electrochemical Lithiation of Nickel Phyllosilicate Nanoscrolls in the 0.01–4.5 V Voltage Range 层状硅酸镍纳米卷在0.01 ~ 4.5 V电压范围内的电化学锂化

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-11-18 DOI: 10.1134/S1023193525700156

D. A. Krasilina, P. V. Larosh, E. K. Khrapova, A. M. Rumyantsev, A. A. Krasilin

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Electrochemical Biosensors for Environmental Estrogenic Endocrine Disrupting Chemicals (EEDCs): A Review 环境雌激素内分泌干扰物电化学生物传感器研究进展

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-11-18 DOI: 10.1134/S1023193525700077

Marang Lucia Makinita, Pontsho Mbule, Kutloano Edward Sekhosana, Muthumuni Managa, Usisipho Feleni

{"title":"Electrochemical Biosensors for Environmental Estrogenic Endocrine Disrupting Chemicals (EEDCs): A Review","authors":"Marang Lucia Makinita, Pontsho Mbule, Kutloano Edward Sekhosana, Muthumuni Managa, Usisipho Feleni","doi":"10.1134/S1023193525700077","DOIUrl":"10.1134/S1023193525700077","url":null,"abstract":"Anthropogenic activities are the major cause of emerging contaminants in the environment. The endocrine-disrupting compounds (EDCs), as part of the micropollutants in the aquatic environment, are compromising the quality of water, impairing the development of humans and animals. Most of EDCs are responsive to bioaccumulation and bioconcentration in the environment. Wastewater treatment plants are reported as the prime source of these compounds in aquatic environments, as they are not designed to specifically remove these steroid compounds. Common methods such as chromatography, mass spectroscopy, and others are employed to quantify the level of different kinds of EDCs, although they suffer from a few drawbacks. In this work, we appraise alternative methods of sensing systems for EDC detection. The advantages of these techniques are lost cost, they use low sample volume, high sensitivity, and selectivity. This review summarizes each of some of the methods used to detect EDCs and their respective limits of detection (LOD). The sensitivity of each technique towards the EDC of interest varied according to the type of EDCs measured, the type of electrochemical probe and electrode, substrates, and the type of nanomaterial.","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"61 9","pages":"505 - 515"},"PeriodicalIF":0.8,"publicationDate":"2025-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145537693","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}

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Production of Platinum Catalysts by Plasma-Assisted Electrochemical Dispersion of Metals and Their Catalytic Activity toward Oxygen Reduction Reaction 等离子体辅助金属电化学分散制备铂催化剂及其对氧还原反应的催化活性

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-11-18 DOI: 10.1134/S1023193525700107

R. A. Manzhos, N. S. Komarova, A. V. Pugacheva, A. S. Kotkin, I. I. Khodos, Ya. I. Korepanov, A. G. Krivenko

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Modelling Hybrid New Design Electrocoagulation–Electro Fenton Oxidation Systems for Efficient Wastewater Treatment 新型电混凝-电Fenton氧化系统的建模与高效废水处理

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-11-18 DOI: 10.1134/S1023193525700089

Shaymaa Hamza Anbr Swadi, Ali A. Yasser, Ali Saleh Jafer, Raid T. Al-khateeb, Ali A. Hassan, Amer T. Nawaf, Jasim I. Humadi

{"title":"Modelling Hybrid New Design Electrocoagulation–Electro Fenton Oxidation Systems for Efficient Wastewater Treatment","authors":"Shaymaa Hamza Anbr Swadi, Ali A. Yasser, Ali Saleh Jafer, Raid T. Al-khateeb, Ali A. Hassan, Amer T. Nawaf, Jasim I. Humadi","doi":"10.1134/S1023193525700089","DOIUrl":"10.1134/S1023193525700089","url":null,"abstract":"The need for effective treatment techniques stems from growing environmental concerns over refinery wastewater discharge. In order to improve the treatment of refinery wastewater (RWW), this study investigates the construction of hybrid electrocoagulation–electro-oxidation (EC–EO) systems that combine the advantages of both processes with new design of Electro oxidation reactor. The suggested approach uses electro-oxidation to target refractory substances that are generally intractable by conventional means, while electrocoagulation was utilized to efficiently eliminate organic contaminants and suspended particles. The EC–EO hybrid approach offers a promising solution for sustainable refinery wastewater management, offering a balance between operational efficiency and environmental compliance. Analyses using modeling and simulation techniques with response surface method (RSM) by Minitab software were used to optimize working parameters, such as, Fenton reagent, pH and electrolysis time. Experimental validation was carried out using real refinery wastewater samples; demonstrating significant reductions in organic pollutants with high efficiency 99.5% under ideal conditions of 50-ppm hydrogen peroxide, 6 ppm iron Sulphate, 3 pH, and 30 min of electrolysis time.","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"61 9","pages":"516 - 530"},"PeriodicalIF":0.8,"publicationDate":"2025-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145537707","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}

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Protective Properties of Electrolytic Coatings Based on Cobalt–Manganese Spinel for Interconnects in Solid Oxide Fuel Cells 基于钴锰尖晶石的固体氧化物燃料电池互连层电解涂层的防护性能

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-10-29 DOI: 10.1134/S1023193525600543

A. V. Khramenkova, O. A. Finaeva, S. D. Rodionova, N. V. Demeneva

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Non-Enzymatic Cholesterol Sensor Based on Electrofabricated Cr2O3/Reduced Graphene Oxide Modified Electrodes 基于电法制备Cr2O3/还原氧化石墨烯修饰电极的非酶促胆固醇传感器

IF 0.8 4区工程技术

Russian Journal of Electrochemistry Pub Date : 2025-10-29 DOI: 10.1134/S1023193525600087

Hülya Öztürk Doğan, Ahmet Recep Korkmaz, Emir Çepni, Tuba Öznülüer Özer

引用次数: 0