International journal of electrochemistry最新文献_第2页

Low-Temperature Conductivity Study of Multiorganic Solvent Electrolyte for Lithium-Sulfur Rechargeable Battery Application 锂硫二次电池用多有机溶剂电解质的低温电导率研究

IF 1.8

International journal of electrochemistry Pub Date : 2019-11-30 DOI: 10.1155/2019/8192931

Ravi Dharavath, Ashwin Murali, Abdul Wasi Tarapathi, Balasubramanian Trichy Srinivasan, R. Kammili

{"title":"Low-Temperature Conductivity Study of Multiorganic Solvent Electrolyte for Lithium-Sulfur Rechargeable Battery Application","authors":"Ravi Dharavath, Ashwin Murali, Abdul Wasi Tarapathi, Balasubramanian Trichy Srinivasan, R. Kammili","doi":"10.1155/2019/8192931","DOIUrl":"https://doi.org/10.1155/2019/8192931","url":null,"abstract":"The conductivity of an electrolyte plays a significant role in deciding the performance of any battery over a wide temperature range from −40°C to 60°C. In this work, the conductivity of lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) at a varied salt concentration range from 0.2 M to 2.0 M in a multisolvent organic electrolyte system over a wide temperature range from −40°C to 60°C is reported. The mixed solvents used were 1,3-dioxolane (DOL), 1,2-dimethoxyethane (DME), and tetraethylene glycol dimethyl ether (TEGDME) with an equal ratio of DOL : DME : TEGDME (1 : 1 : 1 by volume). The experimental analysis performed over a wide temperature range revealed the maximum conductivity at salt concentrations ranging from 1.0 M to 1.4 M for equal molar solvents. The optimum salt concentration and maximum conductivity in a different solvent composition ratio (i.e., 3 : 2 : 1) for all the temperatures is reported herein. The temperature-dependence conductivity of the salt concentration did not fit the Arrhenius plot, but it resembled the Vogel–Tamman–Fulcher plot behavior. The present conductivity study was carried out to evaluate the overall operable temperature limit of the electrolyte used in the lithium-sulfur battery.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":"2019 1","pages":"1-5"},"PeriodicalIF":1.8,"publicationDate":"2019-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/8192931","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44933254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Straight-Parallel Electrodes and Variable Gap for Hydrogen and Oxygen Evolution Reactions 氢析氧反应的直平行电极和可变间隙

IF 1.8

International journal of electrochemistry Pub Date : 2019-08-01 DOI: 10.1155/2019/5392452

M. J. Lavorante, Carla Yanina Reynoso, J. Franco

{"title":"Straight-Parallel Electrodes and Variable Gap for Hydrogen and Oxygen Evolution Reactions","authors":"M. J. Lavorante, Carla Yanina Reynoso, J. Franco","doi":"10.1155/2019/5392452","DOIUrl":"https://doi.org/10.1155/2019/5392452","url":null,"abstract":"The challenges to be overtaken with alkaline water electrolysis are the reduction of energy consumption, the maintenance, and the cost as well as the increase of durability, reliability, and safety. Having these challenges in mind, this work focused on the reduction of the electrical resistance of the electrolyte which directly affects energy consumption. According to the definition of electrical resistance of an object, the reduction of the space between electrodes could lower the electrical resistance but, in this process, the formation of bubbles could modify this affirmation. In this work, the performance analyses of nine different spaces between stainless steel 316L electrodes were carried out, although the spaces proposed are not the same as those from the positive electrode (anode) to the separator and from the separator to the negative electrode (cathode). The reason why this is studied is that stoichiometry of the reaction states that two moles of hydrogen and one mole of oxygen can be obtained per every two moles of water. The proposed spaces were 10.65, 9.20, 8.25, 7.25, 6.30, 6.05, 4.35, 4.15, and 3.40 millimetres. From the nine different analysed distances between electrodes, it can be said that the best performance was reached by one of the smallest distances proposed, 4.15 mm. When the same distance between electrodes was compared (the same and different distance between electrodes and separator), the one that had almost twice the distance (negative compartment) presented an increase in current density of approximately 33% with respect to that where both distances (from electrodes to separator) are the same. That indicates that the stichometry of the electrolysis reaction influenced the performance.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/5392452","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46374838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Increased Cycling Performance of Li-Ion Batteries by Phosphoric Acid Modified LiNi0.5Mn1.5O4 Cathodes in the Presence of LiBOB LiBOB存在下磷酸改性LiNi0.5Mn1.5O4阴极提高锂离子电池循环性能

IF 1.8

International journal of electrochemistry Pub Date : 2019-07-04 DOI: 10.1155/2019/8636540

Maheeka Yapa Abeywardana, N. Laszczynski, M. Kuenzel, D. Bresser, S. Passerini, B. Lucht

引用次数: 16

Synthesis, Cyclic Voltammetric, Electrochemical, and Gravimetric Corrosion Inhibition Investigations of Schiff Base Derived from 5,5-Dimethyl-1,3-cyclohexanedione and 2-Aminophenol on Mild Steel in 1 M HCl and 0.5 M H2SO4 5,5-二甲基-1,3-环己烷二酮和2-氨基苯酚衍生的席夫碱在1M HCl和0.5M H2SO4中对软钢的合成、循环伏安、电化学和重量缓蚀研究

IF 1.8

International journal of electrochemistry Pub Date : 2019-05-02 DOI: 10.1155/2019/1094148

Ragi Kooliyat, Joby Thomas Kakkassery, V. P. Raphael, Sini Varghese Cheruvathur, Binsi M. Paulson

{"title":"Synthesis, Cyclic Voltammetric, Electrochemical, and Gravimetric Corrosion Inhibition Investigations of Schiff Base Derived from 5,5-Dimethyl-1,3-cyclohexanedione and 2-Aminophenol on Mild Steel in 1 M HCl and 0.5 M H2SO4","authors":"Ragi Kooliyat, Joby Thomas Kakkassery, V. P. Raphael, Sini Varghese Cheruvathur, Binsi M. Paulson","doi":"10.1155/2019/1094148","DOIUrl":"https://doi.org/10.1155/2019/1094148","url":null,"abstract":"Schiff base 2,2’-(5,5-dimethylcyclohexane-1,3-diylidene)bis(azan-1-yl-1-ylidene) diphenol (DmChDp) was synthesized and characterized using spectroscopic methods (IR, UV, NMR, and Mass) and cyclic voltammetric (CV) studies. The corrosion inhibition potency of (DmChDp) on mild steel (MS) in 1M HCl and 0.5M H2SO4 was investigated. The corrosion monitoring techniques employed for this purpose are gravimetric and electrochemical methods (EIS and potentiodynamic polarization studies). The study reveals that the Schiff base, DmChDp, acts as excellent corrosion inhibitor on mild steel in 1M HCl. DmChDp obeys Langmuir adsorption isotherm both in 1M HCl and 0.5M H2SO4 on MS. Polarization studies show that DmChDp behaves as a mixed type inhibitor in both media. Scanning electron microscopic analysis established the protective nature of DmChDp on mild steel surface. The impact of temperature on the corrosion of MS was also evaluated using gravimetric method.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2019-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/1094148","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49290953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Electrical Conductivity of Films Formed by Few-Layer Graphene Structures Obtained by Plasma-Assisted Electrochemical Exfoliation of Graphite 等离子体辅助石墨电化学剥离制备的少层石墨烯结构薄膜的电导率

IF 1.8

International journal of electrochemistry Pub Date : 2019-04-28 DOI: 10.1155/2019/6478708

V. Vasiliev, R. Manzhos, A. Krivenko

引用次数: 4

Development of an In-Field Method for the Detection of Barium in Various Water Samples Using Differential Pulse Anodic Stripping Voltammetry 差分脉冲阳极溶出伏安法检测各种水样中钡的现场方法的建立

IF 1.8

International journal of electrochemistry Pub Date : 2019-04-01 DOI: 10.1155/2019/5813492

S. Ridgway, M. Wajrak

引用次数: 4

The Electrochemical Variation of a Kind of Protein Staining and Food Dye as a New Corrosion Inhibitor on Mild Steel in Acidic Medium 一种蛋白质染色及食用染料作为新型缓蚀剂在酸性介质中对低碳钢的电化学变化

IF 1.8

International journal of electrochemistry Pub Date : 2019-03-03 DOI: 10.1155/2019/5743952

D. Özkır

{"title":"The Electrochemical Variation of a Kind of Protein Staining and Food Dye as a New Corrosion Inhibitor on Mild Steel in Acidic Medium","authors":"D. Özkır","doi":"10.1155/2019/5743952","DOIUrl":"https://doi.org/10.1155/2019/5743952","url":null,"abstract":"In this study, the relevance of a food dye, namely, Fast Green-FCF (FG-FCF), was surveyed as a new inhibitor for mild steel in HCl solution. This effect was specified by electrochemical impedance spectroscopy (EIS), one of the most widely used measurement techniques. As a result of the increment of the inhibitor concentration, it was seen that the values of polarization resistance increased and covered the metal surface of FG-FCF like a blanket. Tests endorse that the FG-FCF is chemically adsorbed on mild steel surface, according to the Langmuir isotherm. With surface characteristic analyses, such as field emission scanning electron microscope (FESEM) and atomic force microscope (AFM), it was further determined that the metal surface in HCl of FG-FCF was protected. By applying the hydrogen gas evolution technique, FG-FCF has been proven to provide the lowest surface area with all inhibited solutions from the blank due to its strong adsorption to the metal surface. Finally, it has been clarified that FG-FCF can be practically used as a good corrosion inhibitor for mild steel with the supported results.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2019-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/5743952","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43856399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Voltammetric Determination of Uric Acid in Clinical Serum Samples Using DMF Modified Screen Printed Carbon Electrodes 使用DMF修饰的丝网印刷碳电极伏安法测定临床血清样品中的尿酸

IF 1.8

International journal of electrochemistry Pub Date : 2019-02-03 DOI: 10.1155/2019/6318515

Melaku Metto, Samrawit Eramias, Bekele Gelagay, Alemayehu P Washe

{"title":"Voltammetric Determination of Uric Acid in Clinical Serum Samples Using DMF Modified Screen Printed Carbon Electrodes","authors":"Melaku Metto, Samrawit Eramias, Bekele Gelagay, Alemayehu P Washe","doi":"10.1155/2019/6318515","DOIUrl":"https://doi.org/10.1155/2019/6318515","url":null,"abstract":"Screen printed carbon electrodes (SPCEs) provide attractive opportunity for sensitive and selective determination target analytes in clinical samples. The aim of the current work was to develop SPCEs based sensor for the determination of uric acid in clinical serum samples. The electrodes were pretreated by soaking in N,N-dimethylformamide for 5 minutes followed by drying in an oven at 100°C for 20 mins. The effect of surface pretreatment was characterized using cyclic voltammetry. The current response of uric acid detection was improved by a factor of 3.5 in differential pulse voltammetric measurement compared to unmodified electrode. Under the optimized conditions, the sensor displayed two dynamic linear ranges 5-100 μM and 100-500 μM with correlation coefficient, R2, values of 0.98782 and 0.97876, respectively. The limit of detection and limit of quantification calculated using the dynamic linear range 5-100 μM were 1.9 x 10−7 M and 6.33 x 10−7 M, respectively. The developed sensor displayed well separated and discerned peaks for UA in presence of the potential interferent (ascorbic acid and citric acid). The electrode was successfully applied for the detection of very low level of UA in clinical serum samples in a phosphate buffer solution (pH = 7). The proposed sensor showed a very high reproducibility and repeatability with the relative standard deviation of 0.9%. In conclusion, a simple and low cost sensor based on SPCEs is developed for sensitive and selective detection of uric acid in clinical samples.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2019-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2019/6318515","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46383850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Arc Thermal Spray NiCr20 Alloy Coating: Fabrication, Sealant, Heat Treatment, Wear, and Corrosion Resistances 电弧热喷涂NiCr20合金涂层:制造，密封，热处理，耐磨和耐腐蚀性

IF 1.8

International journal of electrochemistry Pub Date : 2019-01-27 DOI: 10.1155/2019/8796958

V. Nguyễn, Q. L. Thu, T. Nguyen, Quoc Cuong Ly, Ly Pham Thi, Ha Pham Thi, Thanh Dinh Thi Mai

引用次数: 3

Synthesis of 1,2,3-Triazole Derivatives and Its Evaluation as Corrosion Inhibitors for Carbon Steel 1,2,3-三唑衍生物的合成及其对碳钢缓蚀剂的评价

IF 1.8

International journal of electrochemistry Pub Date : 2019-01-22 DOI: 10.1155/2019/6759478

Gabriel O. Resende, S. Teixeira,, I. F. Figueiredo, Alexandre A. Godoy, Dafne Júlia F. Lougon, B. Cotrim, F. C. Souza

引用次数: 11