Surface Engineering and Applied Electrochemistry最新文献_第7页

Experimental Analysis of Corona Current Density Distribution and Electric Field at Variable Temperatures in Electrostatic Precipitator 静电除尘器变温度下电晕电流密度分布及电场的实验分析

IF 0.9

Surface Engineering and Applied Electrochemistry Pub Date : 2022-08-29 DOI: 10.3103/S1068375522040032

H. Ait Said, M. Aissou, A. Laifaoui, N. Hebbar, M. Kaci, H. Nouri, Y. Zebboudj

{"title":"Experimental Analysis of Corona Current Density Distribution and Electric Field at Variable Temperatures in Electrostatic Precipitator","authors":"H. Ait Said, M. Aissou, A. Laifaoui, N. Hebbar, M. Kaci, H. Nouri, Y. Zebboudj","doi":"10.3103/S1068375522040032","DOIUrl":"10.3103/S1068375522040032","url":null,"abstract":"In blade-to-plane electrostatic precipitators at variable temperatures, the electric field and the current density distributions of the negative DC corona were experimentally analyzed, and the corona discharge was used as the source of ionization. In this research, an experimental cell was designed and built to adjust the temperature from 20 to 46°C within the cell. The current density-voltage characteristic and the radial distance distribution of the current density of an electrostatic blade-to-plane precipitator were measured over a temperature interval. Based on the Tassicker and Townsend models, the electric field and the onset voltage were determined. With the rise in temperature, the corona current obtained at the collector plate has been observed to increase, but the onset voltage decreased. The applied voltage and temperature greatly affected the corona current density characteristics and the electrical field. If an exponent of 4.6 to 5 for a negative corona discharge is taken, the DC density distribution is satisfied, then the current density distribution follows the well-known Warburg theorem.","PeriodicalId":49315,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"58 4","pages":"339 - 349"},"PeriodicalIF":0.9,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5105668","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: 1

Electrochemical Phase Formation in Metals under Low Force: Part 1. Increase in the Density of Electrodeposits 低力作用下金属的电化学相形成:第1部分。电沉积密度的增加

IF 0.9

Surface Engineering and Applied Electrochemistry Pub Date : 2022-06-27 DOI: 10.3103/S1068375522030085

O. B. Girin

{"title":"Electrochemical Phase Formation in Metals under Low Force: Part 1. Increase in the Density of Electrodeposits","authors":"O. B. Girin","doi":"10.3103/S1068375522030085","DOIUrl":"10.3103/S1068375522030085","url":null,"abstract":"The existence of the phenomenon of the electrochemical phase formation in metals and alloys via a supercooled liquid state stage is further discussed. In order to experimentally verify the existence of the phenomenon in point, the density of metal deposits subjected to the action of a centrifugal force applied perpendicular to the crystallization front during the electrodeposition process was studied. For this purpose, an installation and electrochemical cells were developed and manufactured, which ensures of metals electrodeposition under the conditions of a low force impact, in the field of a centrifugal force, in particular. The performed experiments identified the effect of an increase in the density of metal deposits under a low force superimposed perpendicular to the crystallization front during the electrochemical phase formation. This effect was confirmed by a decrease in porosity and a decline in the intensity of the X-ray diffraction maxima from the metal electrodeposits obtained under the impact of the conditions mentioned above. The identified effect is another proof for the existence of the phenomenon under discussion.","PeriodicalId":49315,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"58 3","pages":"221 - 230"},"PeriodicalIF":0.9,"publicationDate":"2022-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5045883","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: 1

Functional Capabilities of Electromagnetic-Acoustic Transformations in Current Mode in the Metal Melt 金属熔体电流模式下电磁声转换的功能

IF 0.9

Surface Engineering and Applied Electrochemistry Pub Date : 2022-06-27 DOI: 10.3103/S1068375522030139

V. N. Tsurkin, A. V. Ivanov

{"title":"Functional Capabilities of Electromagnetic-Acoustic Transformations in Current Mode in the Metal Melt","authors":"V. N. Tsurkin, A. V. Ivanov","doi":"10.3103/S1068375522030139","DOIUrl":"10.3103/S1068375522030139","url":null,"abstract":"The paper deals with a symmetric problem on the basis of physically substantiated estimates of the processes of electromagnetic-acoustic transformations (EMAT) of energy during the flow of an electric current through a melt and the key parameters of the open problem of the system “Power source parameters–Parameters of the magnetic field and magnetic pressure of the skin layer–Parameters of acoustic disturbances.” When formulating the EMAT problem in technological applications, it was shown that the key parameter is the geometry of the container with the object of processing and the material of the mold. When solving the problem, it is the parameter of the skin layer and the time dependence of the discharge current. It was established that the part of energy during the formation of the magnetic pressure in the skin layer from the amount of the energy stored in the capacitor bank of the pulse current generator is approximately 10–4–10–2. The value of this part depends on the period of the discharge current and is proportional to the (sqrt T ). When acoustic disturbances propagate in the melt, the main share of energy losses is determined by the difference in the acoustic rigidity of the melt and the shape of materials. The frequency spectra of the pressure of sound waves at the parameters selected for the analysis can cover the range of up to hundreds kHz, which is a good reason for the realization of resonance effects and the active formation of dissipative structures. Attention is focused on the fact that the EMAT effects are manifested in the melt not only under the influence of an acoustic field but also under that of an electromagnetic one in the skin layer. They are separated in time, but the acoustic field can occupy the entire volume of the melt and its effect is longer in time.","PeriodicalId":49315,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"58 3","pages":"239 - 247"},"PeriodicalIF":0.9,"publicationDate":"2022-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5048570","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: 0

Implementation of the Nanostate Phenomenon in Materials Science of Functional Nanocomposites Based on Industrial Polymers 基于工业聚合物的功能纳米复合材料的纳米态现象在材料科学中的实现

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Surface Engineering and Applied Electrochemistry Pub Date : 2022-06-27 DOI: 10.3103/S1068375522030061

S. V. Avdeichik, V. A. Gol’dade, V. A. Struk, A. S. Antonov, A. G. Ikromov

引用次数: 0

Corrosion Inhibition of Aluminum in 1.0 M HCl Solution Using Cystoseira Myrica Extract 杨梅提取物对铝在1.0 M HCl溶液中的缓蚀作用

IF 0.9

Surface Engineering and Applied Electrochemistry Pub Date : 2022-06-27 DOI: 10.3103/S1068375522030115

Samar Y. Al-Nami

引用次数: 0

Electrochemical Investigation of 4-Hydroxy n-[2-Methoxy Naphthalene Methylidene] Benzohydrazide as Corrosion Inhibitor of Mild Steel in Acidic Medium 4-羟基n-[2-甲氧基萘甲基]苯并肼在酸性介质中作为低碳钢缓蚀剂的电化学研究

IF 0.9

Surface Engineering and Applied Electrochemistry Pub Date : 2022-06-27 DOI: 10.3103/S1068375522030024

V. R. Adinarayanan, P. Preethi Kumari, Suma A. Rao

{"title":"Electrochemical Investigation of 4-Hydroxy n-[2-Methoxy Naphthalene Methylidene] Benzohydrazide as Corrosion Inhibitor of Mild Steel in Acidic Medium","authors":"V. R. Adinarayanan, P. Preethi Kumari, Suma A. Rao","doi":"10.3103/S1068375522030024","DOIUrl":"10.3103/S1068375522030024","url":null,"abstract":"The corrosion rate of mild steel in hydrochloric acid and in sulphuric acid was determined by potentiodynamic polarization and electrochemical impedance spectroscopy in 0.5 M concentrations of HCl and of H2SO4 using 4-hydroxy n-[2-methoxy naphthalene methylidene] benzohydrazide (HNBH) as an inhibitor The inhibition efficiency of HNBH for the corrosion mitigation of mild steel was studied by varying the concentration of the inhibitor and temperature. It was found that the inhibition efficiency of HNBH increased with increase in the inhibitor concentration in both media. The maximum of 80% inhibition efficiency at the optimum inhibitor concentration of 2.5 × 10–4 M was achieved. However, with an increase in temperature, the inhibition efficiency decreased. The corrosion inhibition by HNBH took place through physisorption. The adsorption isotherm fitting with the experimental data was identified to find out the mechanism of inhibition. The results indicated that HNBH functions as mixed type inhibitor and follows the Langmuir adsorption isotherm. The surface of the specimen was analyzed using scanning electron microscopy.","PeriodicalId":49315,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"58 3","pages":"269 - 280"},"PeriodicalIF":0.9,"publicationDate":"2022-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5045224","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: 0

Analysis of Materials for a Working Dielectric of a Monoblock Multifunctional High-Voltage Pulse Capacitor 单块多功能高压脉冲电容器工作介质材料分析

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Surface Engineering and Applied Electrochemistry Pub Date : 2022-06-27 DOI: 10.3103/S1068375522030103

V. I. Gun’ko, A. Ya. Dmitrishin, A. P. Malyushevskaya, S. O. Toporov

引用次数: 0

Electrochemical Glucose Sensing Using Molecularly Imprinted Polyaniline–Copper Oxide Coated Electrode 分子印迹聚苯胺-氧化铜包覆电极的电化学葡萄糖传感

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Surface Engineering and Applied Electrochemistry Pub Date : 2022-06-27 DOI: 10.3103/S1068375522030127

Stephy Jose, Sudev Das, Teja Reddy Vakamalla, Dipak Sen

{"title":"Electrochemical Glucose Sensing Using Molecularly Imprinted Polyaniline–Copper Oxide Coated Electrode","authors":"Stephy Jose, Sudev Das, Teja Reddy Vakamalla, Dipak Sen","doi":"10.3103/S1068375522030127","DOIUrl":"10.3103/S1068375522030127","url":null,"abstract":"Diabetes is a chronic condition in which the body cannot produce or effectively utilize the produced insulin. Insulin is a hormone that regulates the blood glucose level (BGL). The long-term increased BGL can have serious health effects. Time-based monitoring of BGL is necessary for diabetic patients to avoid severe health conditions. For this purpose, a non-enzymatic electrochemical sensor for the non-invasive detection of glucose was prepared and tested in the framework of this research. The sensor was developed by combining the features of a molecularly imprinted polymer (MIP) and the highly conductive nature of polyaniline (PANI) and copper oxide nanoparticles (CuONPs). The CuONPs were electrodeposited onto the bare graphite electrode in the presence of 1.8 M H2SO4 solution. Using aniline as the monomer in presence of 0.5 M H2SO4, the copper oxide-coated pencil graphite electrode was electropolymerized to obtain a non-imprinted polyaniline/copper oxide-coated graphite electrode. Glucose was added to the electrolytic solution for the preparation of a molecularly imprinted polymer electrode. Cyclic voltammetry and amperometry were used to characterize the electrochemical response of the modified electrode in the presence and in the absence of glucose, as well as the selectivity of the sensor towards glucose detection in the presence of the interfering species. The morphological characterization of the fabricated electrode was investigated using scanning electron microscopy, Fourier transform-infrared spectroscopy, 3D surface profilometry, X-ray diffraction spectroscopy, and goniometry. From the electrochemical and morphological characterization results, it was inferred that the modified graphite electrode possesses imprinted sites, which helps to increase selectivity towards glucose sensing.","PeriodicalId":49315,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"58 3","pages":"260 - 268"},"PeriodicalIF":0.9,"publicationDate":"2022-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"5048604","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

Electrochemical Deposition of Zinc Sulfide from a Na2SO3-Based Electrolyte na2so3基电解液中硫化锌的电化学沉积

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Surface Engineering and Applied Electrochemistry Pub Date : 2022-05-10 DOI: 10.3103/S1068375522020028

I. V. Demidenko, V. M. Ishimov

引用次数: 0

Initiation of Electrical Discharge in Water Using a Thin-Layer Conductor 利用薄层导体在水中引发放电

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Surface Engineering and Applied Electrochemistry Pub Date : 2022-05-10 DOI: 10.3103/S1068375522020120

A. P. Smirnov, V. G. Zhekul, O. V. Khvoshchan

引用次数: 1