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Photocatalytic Activity Enhancement of ZnO/CZTS Thin Film Heterostructures in Visible Region: Controlling Phase Pure Kesterite CZTS Thin Films and the Effect of the Number of Seed Layers on Photocatalytic Performance 可见光区 ZnO/CZTS 薄膜异质结构的光催化活性增强：控制纯 Kesterite CZTS 薄膜的相位以及种子层数对光催化性能的影响
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-08-07 DOI: 10.1134/S1023193524700277
Kieu Loan Phan Thi, Dao Anh Tuan, Vinh Trung Phan, Le Vu Tuan Hung
{"title":"Photocatalytic Activity Enhancement of ZnO/CZTS Thin Film Heterostructures in Visible Region: Controlling Phase Pure Kesterite CZTS Thin Films and the Effect of the Number of Seed Layers on Photocatalytic Performance","authors":"Kieu Loan Phan Thi,&nbsp;Dao Anh Tuan,&nbsp;Vinh Trung Phan,&nbsp;Le Vu Tuan Hung","doi":"10.1134/S1023193524700277","DOIUrl":"10.1134/S1023193524700277","url":null,"abstract":"<p>This work focuses on optimizing the structure of CZTS/ZnO thin film heterostructure to increase the photocatalytic property in visible region. The CZTS thin films were fabricated on glass substrates by dip coating method. Then ZnO thin films were grown on the CZTS layer by chemical bath deposition method at low temperature. Secondary phase formation in CZTS thin films with four different molar ratios of Cu : Zn : Sn : S of 1.4 : 1 : 1 : 8, 1.6 :1 : 1 : 8, 1.8 : 1 : 1 : 8 and 2 : 1 : 1 : 8 were investigated. In order to improve the crystallinity, CZTS thin films were annealed at 450°C in N<sub>2</sub> atmosphere without sulfurization. The results showed that the CZTS thin film exhibited phase pure kesterite structure and good crystallinity at the ratio of 1.8 : 1 : 1 : 8 (Cu : Zn : Sn : S), absence of secondary phase formation in CZTS thin film was important to reduce charge recombination. For ZnO/CZTS thin film heterostructure, in order to reduce the lattice mismatch of ZnO and CZTS, some seed layers were coated onto the surface of CZTS thin film to support the growth of ZnO thin film in these heterostructures. Raman spectra, XRD patterns and SEM images data confirm that the ZnO/CZTS thin film heterostructures with two seed layers achieved optimal crystal structure and film morphology. UV-Vis spectra of heterostructures suggested that photocatalytic activity is extended toward visible-light region from 380 to 800 nm. Finally, the photocatalytic performance was examined through degradation of methylene blue (MB) and apparent rate constant (<i>k</i><sub>app</sub>), namely: the highest degradation of MB was obtained with ZC2 labelled heterostructure samples up to 92.8% in 150 min; <i>k</i><sub>app</sub> of this sample is much larger (as high as 6.5 and 29.2 times respectively) than that of pristine CZTS and ZnO films.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 8","pages":"644 - 656"},"PeriodicalIF":1.1,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937611","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
Kinetics of Dimethylsulfoxide Electrooxidation on a Platinum Electrode in Sulfuric-Acid and Alkaline Solutions 铂电极在硫酸和碱性溶液中的二甲基亚砜电氧化动力学
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-08-07 DOI: 10.1134/S102319352470023X
K. O. Ibragimova, Sh. Sh. Khidirov, S. I. Suleymanov
{"title":"Kinetics of Dimethylsulfoxide Electrooxidation on a Platinum Electrode in Sulfuric-Acid and Alkaline Solutions","authors":"K. O. Ibragimova,&nbsp;Sh. Sh. Khidirov,&nbsp;S. I. Suleymanov","doi":"10.1134/S102319352470023X","DOIUrl":"10.1134/S102319352470023X","url":null,"abstract":"<p>Electrochemical study of the mechanism of dimethylsulfoxide electrooxidation on a platinum electrode in acidic and alkaline solutions is carried out. On the stationary anodic polarization curves taken in acidic and alkaline dimethylsulfoxide solutions, the oxidation currents preceded those measured in the supporting electrolyte. By the analyzing of linear segments of anodic voltammograms, the coefficients of the Tafel equation are determined. This allowed choosing the current density range and conditions for the dimethylsulfoxide electrooxidation on the platinum electrode. The electrolysis was carried out at controlled current density in electrolyzers both with unseparated compartments and the anodic and cathodic compartments separated with MK-40, MA-40 membranes and a MF-4SK fluoropolymer sulfocationite membrane. The high electrical conductivity and selectivity of the membranes provided good performance of the electrolysis process and obtaining of high-purity final product. Raman spectroscopy and gas chromatography–mass spectrometry confirmed that the products of dimethylsulfoxide electrooxidation in the acidic solution are dimethylsulfone and dimethylsulfoxide; in alkaline solution, the dimethyl sulfone and sodium methanesulfonate. The method of quantum-chemical calculations showed good adsorption of dimethylsulfoxide molecules at platinum within the frames of the cluster model. It is shown that the dimethylsulfoxide formation at the platinum electrode surface at high current densities occurs by the radical-ion mechanism, involving breaking of the C–S bond. Based on the experimental results obtained, a scheme for the dimethylsulfoxide electrochemical oxidation at platinum is proposed.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 8","pages":"633 - 643"},"PeriodicalIF":1.1,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937605","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
Application of Square-Wave Stripping Voltammetry for the Analysis of Lead–Bismuth Electrodeposits 方波剥离伏安法在铅铋电沉积物分析中的应用
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-08-07 DOI: 10.1134/S1023193524700198
I. A. Voronin, S. V. Sotnichuk, I. V. Kolesnik, K. S. Napolskii
{"title":"Application of Square-Wave Stripping Voltammetry for the Analysis of Lead–Bismuth Electrodeposits","authors":"I. A. Voronin,&nbsp;S. V. Sotnichuk,&nbsp;I. V. Kolesnik,&nbsp;K. S. Napolskii","doi":"10.1134/S1023193524700198","DOIUrl":"10.1134/S1023193524700198","url":null,"abstract":"<p>The possibility of targeted electrodeposition of metal coatings in the lead–bismuth binary system is considered. The analysis of metal content in the deposits is performed using square-wave stripping voltammetry of solutions containing both lead and bismuth. The results are supported by the data of scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction analysis. The conditions for the formation of Pb<sub>7</sub>Bi<sub>3</sub> (ε-phase), which is promising for the application in superconducting microelectronics, are found.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 8","pages":"595 - 601"},"PeriodicalIF":1.1,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937603","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
Multi-Objective Optimization of Pulse Electrochemical Machining Process Parameters by CRITIC-TOPSIS 利用 CRITIC-TOPSIS 对脉冲电化学加工工艺参数进行多目标优化
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-08-07 DOI: 10.1134/S1023193524700241
Ronglian Lin, Chen Gong, Wenyuan Li, Cuijiao Liao
{"title":"Multi-Objective Optimization of Pulse Electrochemical Machining Process Parameters by CRITIC-TOPSIS","authors":"Ronglian Lin,&nbsp;Chen Gong,&nbsp;Wenyuan Li,&nbsp;Cuijiao Liao","doi":"10.1134/S1023193524700241","DOIUrl":"10.1134/S1023193524700241","url":null,"abstract":"<p>In pulsed electrochemical machining (PECM), it is difficult to control machining stability and surface quality numerous due to the interrelated variables with highly nonlinear and complex characteristics. Thus, how to determine the optimal process parameters to ensure optimal machining performance became a hot research. In this paper, we investigate the recurrence behavior of Ti–48Al–2Cr–2Nb alloy in PECM by recurrence plots and the quantitative analysis. Besides, the Technique for Order Preference by Similarity to Ideal Solution with Criteria Importance through Intercriteria Correlation (CRITIC-TOPSIS) is employed to determine the optimal process parameters for PECM. The results demonstrate that the recurrence plots exhibit periodic characteristics at the macro level, and effectively identify current density changes in different dissolution stages of the alloy at the micro level. Each pulse stage exhibits an inherent oscillation frequency, and the recurrence plots display a similar block structure with evident fractal features. The optimal result show that the optimal process parameters for the potential, the duty cycle, electrolyte pressure and the feed velocity is 16 V, 40%, 0.4 MPa and 0.9 mm/min, respectively. After optimization, the machining stability and the surface morphology uniformity improves by 29.82 and 72.78%, respectively, and the surface roughness decreases by 24.09%, providing a basis for establishing the quantitative relationship between the machining stability and the surface roughness.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 8","pages":"657 - 669"},"PeriodicalIF":1.1,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937464","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
Charge Transfer Resistance in the Hydrogen Evolution Reaction under the Conditions of Temkin Isotherm 滕金等温线条件下氢气进化反应中的电荷转移阻力
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-08-07 DOI: 10.1134/S1023193524700265
V. I. Kichigin, A. B. Shein
{"title":"Charge Transfer Resistance in the Hydrogen Evolution Reaction under the Conditions of Temkin Isotherm","authors":"V. I. Kichigin,&nbsp;A. B. Shein","doi":"10.1134/S1023193524700265","DOIUrl":"10.1134/S1023193524700265","url":null,"abstract":"<p>The charge-transfer resistance <i>R</i><sub>1</sub> as a function of the electrode potential <i>Е</i> for the hydrogen evolution reaction passing by the Volmer–Heyrovsky mechanism involving atomic hydrogen adsorbed according to Temkin isotherm is studied. For a quasiequilibrium Volmer reaction, log<i>R</i><sub>1</sub>,<i>E</i>-curves have a minimum and a maximum. With the increasing of the surface nonuniformity factor <i>f</i> the minimum has been shifted toward lower electrode potentials, the minimum region in the voltammogram is widened. The half-width of the minimum region allowed determining the <i>f</i> value. At the lowest and highest values of the surface coverage, the log<i>R</i><sub>1</sub>,<i>E</i>-dependence demonstrated the same regularities as the Langmuir isotherm.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 8","pages":"679 - 686"},"PeriodicalIF":1.1,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937609","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
Electrocatalytic Activity of Sr-Doped Lanthanum Cobaltate for Oxygen Evolution Reaction in Alkaline Medium 掺杂锶的钴酸镧在碱性介质中进行氧进化反应的电催化活性
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-08-07 DOI: 10.1134/S1023193524700253
B. Lal, P. Chauhan
{"title":"Electrocatalytic Activity of Sr-Doped Lanthanum Cobaltate for Oxygen Evolution Reaction in Alkaline Medium","authors":"B. Lal,&nbsp;P. Chauhan","doi":"10.1134/S1023193524700253","DOIUrl":"10.1134/S1023193524700253","url":null,"abstract":"<p>La<sub>1 –</sub> <sub><i>x</i></sub>Sr<sub><i>x</i></sub>CoO<sub>3</sub> (<i>x</i> = 0.1, 0.2, 0.3, 0.4, and 0.5) were prepared by the alginic acid sol–gel route and characterized by thermo gravimetric analysis (TGA), Fourier transform infrared (FT-IR), X-ray diffraction (XRD), and scanning electron microscope (SEM) techniques. The electrocatalytic activity of fabricated oxide electrodes (Ni/oxide) was studied for oxygen evolution reaction (OER) in an alkaline medium. The cyclic voltammetry of oxide electrodes shows a pair of redox couple at anodic peak potential (<i>E</i><sub>pa</sub>) = 400 ± 6 mV and cathodic peak potential (<i>E</i><sub>pc</sub>) = 296 ± 8 mV. The observed values of electrode kinetic parameters such as the Tafel slope (<i>b</i>) lie between 91 and 126 mV dec<sup>–1</sup> and current density (<i>j</i>) lie between 17.0–73.1 mA cm<sup>–2</sup> at 0.85 V. The Sr-substitution in lanthanum cobaltate matrix improve electrocatalytic activity for OER in an alkaline medium and maximum improvement was observed in the case of 0.4 mol Sr-substituted oxide. The order of reaction (<i>p</i>) with respect to the concentration of [OH<sup>–</sup>] is found unity and the highly negative value of entropy of the reaction indicated the oxygen evolution follows the same mechanism and involves the adsorption of the reaction intermediate.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 8","pages":"670 - 678"},"PeriodicalIF":1.1,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937607","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 Anodic Behavior of Manganese Silicide-Germanides in Aqueous Sodium Sulfate Solutions: The Effect of the Germanium Content 硅化锗锰在硫酸钠水溶液中的阳极行为：锗含量的影响
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-08-07 DOI: 10.1134/S1023193524700228
I. L. Rakityanskaya, D. A. Myasnikov
{"title":"The Anodic Behavior of Manganese Silicide-Germanides in Aqueous Sodium Sulfate Solutions: The Effect of the Germanium Content","authors":"I. L. Rakityanskaya,&nbsp;D. A. Myasnikov","doi":"10.1134/S1023193524700228","DOIUrl":"10.1134/S1023193524700228","url":null,"abstract":"<p>The electrochemical behavior of manganese silicide-germanides with different ratios of germanium and silicon is studied using the methods of voltammetry and impedance spectroscopy in 0.5 M aqueous sodium sulfate solution. It is shown that the oxidation stability of materials decreases with an increase in the ratio of germanium, which, unlike silicon, is incapable of forming a layer of stable oxides on the material surface.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 8","pages":"623 - 632"},"PeriodicalIF":1.1,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937606","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
Polysulfone-Based Anion-Exchange Membranes for Alkaline Water Electrolyzers 用于碱性水电解槽的聚砜基阴离子交换膜
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-08-07 DOI: 10.1134/S1023193524700216
V. N. Kuleshov, N. V. Kuleshov, S. V. Kurochkin, A. A. Gavriluk, M. A. Klimova, O. Yu. Grigorieva
{"title":"Polysulfone-Based Anion-Exchange Membranes for Alkaline Water Electrolyzers","authors":"V. N. Kuleshov,&nbsp;N. V. Kuleshov,&nbsp;S. V. Kurochkin,&nbsp;A. A. Gavriluk,&nbsp;M. A. Klimova,&nbsp;O. Yu. Grigorieva","doi":"10.1134/S1023193524700216","DOIUrl":"10.1134/S1023193524700216","url":null,"abstract":"<p>Using the method of polysulfone chloromethylation followed by quaternization, an anion-exchange membrane is synthesized for water electrolyzers with alkaline electrolyte. The characteristics of this membrane such as porosity, electrical conductivity, and gas-tightness are determined. A comparative analysis of characteristics of this membrane as compared with a porous diaphragm (analog of ZifronPerl) is carried out. The results of tests of the membrane within an alkaline electrolyzer battery are compared with the results for the porous diaphragm based on unmodified polysulfone with a hydrophilic filler (TiO<sub>2</sub>) and synthesized by phase inversion. The possible mechanism of the degradation of the main chain in quaternized polysulfone is presented. The ways are proposed for the further development of the technology of anion-exchange membranes based on polysulfone.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 8","pages":"613 - 622"},"PeriodicalIF":1.1,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937604","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
Deposition of Iron Doped Birnessite during Simultaneous Electroreduction of Permanganate and Ferrate(VI) in Sodium Hydroxide Solution 在氢氧化钠溶液中同时电还原高锰酸盐和铁(VI)时掺铁桦木酸盐的沉积
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-08-07 DOI: 10.1134/S1023193524700204
L. V. Pugolovkin, E. E. Levin
{"title":"Deposition of Iron Doped Birnessite during Simultaneous Electroreduction of Permanganate and Ferrate(VI) in Sodium Hydroxide Solution","authors":"L. V. Pugolovkin,&nbsp;E. E. Levin","doi":"10.1134/S1023193524700204","DOIUrl":"10.1134/S1023193524700204","url":null,"abstract":"<p>The reduction of permanganate on a rotating disk electrode is accompanied by an inhibition of depositing birnessite. The addition of potassium ferrate(VI) leads to an increase of inhibition. The obtaining of electrode material based on Fe-doped birnessite under alkaline conditions is demonstrated in experiment with deposition at inhibition potentials. This birnessite is single phase and highly disordered. The Fe content varies from 0 to 10 mol % in respect to Mn with increasing ferrate(VI) content in deposition solution. Recharging potentials of birnessite are shifted which is manifested by cyclic voltammetry. Doping allows to increase the rate of oxygen evolution reaction. The specific currents increase with the iron content in birnessite. The Tafel slope is 53 mV/dec and by 2.5 times lower for birnessite containing 10 mol % Fe.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 8","pages":"602 - 612"},"PeriodicalIF":1.1,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937466","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
Electrochemical Reduction of Carbon Dioxide to Formate in the Acetylene-Black Gas-Diffusion Electrode with a Tin Catalyst 在含锡催化剂的乙炔-黑色气体扩散电极中将二氧化碳电化学还原为甲酸盐
IF 1.1 4区 工程技术
Russian Journal of Electrochemistry Pub Date : 2024-07-17 DOI: 10.1134/S1023193524700149
G. A. Kolyagin, O. P. Taran
{"title":"Electrochemical Reduction of Carbon Dioxide to Formate in the Acetylene-Black Gas-Diffusion Electrode with a Tin Catalyst","authors":"G. A. Kolyagin,&nbsp;O. P. Taran","doi":"10.1134/S1023193524700149","DOIUrl":"10.1134/S1023193524700149","url":null,"abstract":"<p>An hydrophobized gas-diffusion electrode with a tin catalyst deposited onto acetylene black A437E is tested with the aim of elucidation of its potential in intensifying the CO<sub>2</sub> electroreduction to formate in acidic and alkaline aqueous solutions. Porous electrodes with the fluoroplastic content of 40 wt %, a thickness of 0.5 mm, porosity of 60 vol %, and the tin content ≈0.7 mg/cm<sup>2</sup> of the total electrode surface are studied. It is shown that this type of electrodes can be used in electroreduction of CO<sub>2</sub> at a current density of up to 900 mA/cm<sup>2</sup>, a temperature of 25–55°C with the current efficiency from 74 to 96% with respect to formate. The 4 h electrolysis at a current density of 190 mA/cm<sup>2</sup> produces a solution with the potassium formate concentration of 1.58 M. This is accompanied by the increase in the capacitance of the electric double layer from 7 to 17 mF/cm<sup>2</sup> and the decrease in the current efficiency from 96 to 58%.</p>","PeriodicalId":760,"journal":{"name":"Russian Journal of Electrochemistry","volume":"60 7","pages":"507 - 512"},"PeriodicalIF":1.1,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141718463","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
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