Standard oxidation-reduction reactions such as those of ferrocyanide and ferrocene have long been employed in evaluating and comparing new electrode structures with more traditional configurations. A variety of nanostructured carbon electrodes developed in recent years have been reported to exhibit faster electron transfer kinetics than more traditional carbon structures when studied with these redox reactions. This type of comparison has not been widely explored for nanostructured platinum electrodes that have become increasingly common. In this work, a platinum nanotubule array electrode was fabricated via a simple template-based process and evaluated using the standard ferrocyanide redox reaction. The nanotubule array electrodes were observed to more closely approach ideal reversible behavior than a typical Pt black/Nafion fuel cell electrode or a standard polished Pt disc electrode. The apparent heterogeneous electron transfer coefficient was determined using the Nicholson method and found to be one to two orders of magnitude greater for the nanotubule array electrodes, depending on the diameter of the nanotubules, in comparison with these same two more traditional electrode structures.
{"title":"Electrochemical Characterization of Platinum Nanotubules Made via Template Wetting Nanofabrication","authors":"Eric Broaddus, J. Brubaker, S. Gold","doi":"10.1155/2013/960513","DOIUrl":"https://doi.org/10.1155/2013/960513","url":null,"abstract":"Standard oxidation-reduction reactions such as those of ferrocyanide and ferrocene have long been employed in evaluating and comparing new electrode structures with more traditional configurations. A variety of nanostructured carbon electrodes developed in recent years have been reported to exhibit faster electron transfer kinetics than more traditional carbon structures when studied with these redox reactions. This type of comparison has not been widely explored for nanostructured platinum electrodes that have become increasingly common. In this work, a platinum nanotubule array electrode was fabricated via a simple template-based process and evaluated using the standard ferrocyanide redox reaction. The nanotubule array electrodes were observed to more closely approach ideal reversible behavior than a typical Pt black/Nafion fuel cell electrode or a standard polished Pt disc electrode. The apparent heterogeneous electron transfer coefficient was determined using the Nicholson method and found to be one to two orders of magnitude greater for the nanotubule array electrodes, depending on the diameter of the nanotubules, in comparison with these same two more traditional electrode structures.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":"2013 1","pages":"222-228"},"PeriodicalIF":1.8,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/960513","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64330976","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}
N. Garino, S. Zanarini, S. Bodoardo, J. Nair, S. Pereira, L. Pereira, R. Martins, E. Fortunato, N. Penazzi
An optimized thermoset gel polymer electrolyte based on Bisphenol A ethoxylate dimethacrylate and Poly(ethylene glycol) methyl ether methacrylate (BEMA/PEGMA) was prepared by facile photo-induced free radical polymerisation technique and tested for the first time in electrochromic devices (ECD) combining WO3 sputtered on ITO as cathodes and V2O5 electrodeposited on ITO as anodes. The behaviour of the prepared ECD was investigated electrochemically and electro-optically. The ECD transmission spectrum was monitored in the visible and near-infrared region by varying applied potential. A switching time of ca. 2 s for Li+ insertion (coloring) and of ca. 1 s for Li+ de-insertion (bleaching) were found. UV-VIS spectroelectrochemical measurements evidenced a considerable contrast between bleached and colored state along with a good stability over repeated cycles. The reported electrochromic devices showed a considerable enhancement of switching time with respect to the previously reported polymeric ECD indicating that they are good candidates for the implementation of intelligent windows and smart displays.
{"title":"Fast Switching Electrochromic Devices Containing Optimized BEMA/PEGMA Gel Polymer Electrolytes","authors":"N. Garino, S. Zanarini, S. Bodoardo, J. Nair, S. Pereira, L. Pereira, R. Martins, E. Fortunato, N. Penazzi","doi":"10.1155/2013/138753","DOIUrl":"https://doi.org/10.1155/2013/138753","url":null,"abstract":"An optimized thermoset gel polymer electrolyte based on Bisphenol A ethoxylate dimethacrylate and Poly(ethylene glycol) methyl ether methacrylate (BEMA/PEGMA) was prepared by facile photo-induced free radical polymerisation technique and tested for the first time in electrochromic devices (ECD) combining WO3 sputtered on ITO as cathodes and V2O5 electrodeposited on ITO as anodes. The behaviour of the prepared ECD was investigated electrochemically and electro-optically. The ECD transmission spectrum was monitored in the visible and near-infrared region by varying applied potential. A switching time of ca. 2 s for Li+ insertion (coloring) and of ca. 1 s for Li+ de-insertion (bleaching) were found. UV-VIS spectroelectrochemical measurements evidenced a considerable contrast between bleached and colored state along with a good stability over repeated cycles. The reported electrochromic devices showed a considerable enhancement of switching time with respect to the previously reported polymeric ECD indicating that they are good candidates for the implementation of intelligent windows and smart displays.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":"2013 1","pages":"1-10"},"PeriodicalIF":1.8,"publicationDate":"2013-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/138753","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64378172","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}
M. Bagherzadeh, S. Ansari, Fariborz Riahi, A. Farahbakhsh
Herein, Fe3O4 magnetic nanoparticles (MNPs) were synthesized and characterized. Afterward, a magnetic carbon paste electrode (MCPE) was modified with MNPs via casting and drying MNPs on top of the MCPE (MCPE/MNP). Electrochemical behavior of the MCPE/MNP was studied by cyclic voltammetry in the presence of [Fe(CN)6]3−/4− as a redox probe, and surface of MNPs was evaluated as . The behavior of MCPE/MNP towards dopamine (DA) and ascorbic acid (AA) has been investigated by electrochemical methods, and the obtained results showed that the MCPE/MNP has adsorption behavior towards only DA. Based on this behavior, the DA molecules were pre-concentrated on top of the MCPE/MNP and followed with stripping in DA free solution. Subsequent to experimental and instrumental optimization, a calibration curve from to M DA with , DL = M DA, and RSD = 4.6%, was obtained in the presence of M AA. Performance of the MCPE/MNP was successfully tested in a pharmaceutical sample.
本文合成了Fe3O4磁性纳米颗粒(MNPs)并对其进行了表征。然后，通过在MCPE (MCPE/MNP)上浇铸和干燥MNPs，用MNPs修饰磁性碳糊电极(MCPE)。以[Fe(CN)6]3−/4−为氧化还原探针，采用循环伏安法研究了MCPE/MNP的电化学行为，并对MNPs的表面进行了评价。用电化学方法研究了MCPE/MNP对多巴胺(DA)和抗坏血酸(AA)的吸附行为，结果表明MCPE/MNP只对DA有吸附行为。基于这种行为，将DA分子预先浓缩在MCPE/MNP上，然后在无DA溶液中剥离。经实验和仪器优化，得到了M - AA存在时，DL = M - DA, RSD = 4.6%的校准曲线。MCPE/MNP的性能在药物样品中成功测试。
{"title":"A Dopamine Sensor Based on Pre-Concentration by Magnetic Nanoparticles","authors":"M. Bagherzadeh, S. Ansari, Fariborz Riahi, A. Farahbakhsh","doi":"10.1155/2013/803672","DOIUrl":"https://doi.org/10.1155/2013/803672","url":null,"abstract":"Herein, Fe3O4 magnetic nanoparticles (MNPs) were synthesized and characterized. Afterward, a magnetic carbon paste electrode (MCPE) was modified with MNPs via casting and drying MNPs on top of the MCPE (MCPE/MNP). Electrochemical behavior of the MCPE/MNP was studied by cyclic voltammetry in the presence of [Fe(CN)6]3−/4− as a redox probe, and surface of MNPs was evaluated as . The behavior of MCPE/MNP towards dopamine (DA) and ascorbic acid (AA) has been investigated by electrochemical methods, and the obtained results showed that the MCPE/MNP has adsorption behavior towards only DA. Based on this behavior, the DA molecules were pre-concentrated on top of the MCPE/MNP and followed with stripping in DA free solution. Subsequent to experimental and instrumental optimization, a calibration curve from to M DA with , DL = M DA, and RSD = 4.6%, was obtained in the presence of M AA. Performance of the MCPE/MNP was successfully tested in a pharmaceutical sample.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":"2013 1","pages":"1-10"},"PeriodicalIF":1.8,"publicationDate":"2013-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/803672","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64260340","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}
A. Nassi, Thiery Christophe Ebelle, J. Manga, Jules-Blaise Mabou Leuna, J. D. Dazie, E. Ngameni
Cyclic and square wave voltammetries have been used to study electrochemical behaviour of an anti-HIV agent (Guttiferone A) at the liquid-liquid interface. The thin organic membrane is formed by an organic solvent containing redox probe. Guttiferone A, a benzophenone (BP) with appropriate electrolyte. It is demonstrated that BP possesses three reduction systems due to the redox transformation of the three tautomeric forms that lead to the migration of proton between the hydroxyl group in position 4 and the carbonyl group in positions 2 and 10. The transfer of proton from the aqueous solution to the organic phase is crucial for the redox transformation of BP into the organic membrane. The voltammograms obtained are strongly influenced by the pH of the aqueous phase. The electrochemical mechanism consists of 2e−/2H
{"title":"Voltammetry Study of an Anti-HIV Compound by means of a Thin Organic Membrane","authors":"A. Nassi, Thiery Christophe Ebelle, J. Manga, Jules-Blaise Mabou Leuna, J. D. Dazie, E. Ngameni","doi":"10.1155/2013/902872","DOIUrl":"https://doi.org/10.1155/2013/902872","url":null,"abstract":"Cyclic and square wave voltammetries have been used to study electrochemical behaviour of an anti-HIV agent (Guttiferone A) at the liquid-liquid interface. The thin organic membrane is formed by an organic solvent containing redox probe. Guttiferone A, a benzophenone (BP) with appropriate electrolyte. It is demonstrated that BP possesses three reduction systems due to the redox transformation of the three tautomeric forms that lead to the migration of proton between the hydroxyl group in position 4 and the carbonyl group in positions 2 and 10. The transfer of proton from the aqueous solution to the organic phase is crucial for the redox transformation of BP into the organic membrane. The voltammograms obtained are strongly influenced by the pH of the aqueous phase. The electrochemical mechanism consists of 2e−/2H","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":"2013 1","pages":"1-8"},"PeriodicalIF":1.8,"publicationDate":"2013-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/902872","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64305775","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}
Shangwei Zhong, Jiali Su, Liang Chen, Jie Tong, Wenfang Jia, Xiangjun Li, H. Zou
A catalytic adsorptive cathodic stripping voltammetric method on an improved bismuth film electrode (BiFE) for the determination of trace germanium in the presence of pyrogallol has been investigated. A well-defined and sensitive stripping peak of Ge(IV)-pyrogallol complex was observed at −0.79 V (versus SCE) in a 0.1 M acetate buffer solution (pH 4.8) at a deposition potential of −0.34 V. The reduction current is catalytically enhanced by adding KBrO3. The experimental variables and potential interference were studied. Compared with the BiFE plated in the solution prepared based on HAc-NaAc without trisodium citrate, the improved BiFE electrodeposited in the solution of HAc-NaAc containing trisodium citrate displayed a better electroanalytical performance for the determination of germanium(IV). Under the optimized conditions, the detection limit of Ge(IV) was 60 ng L−1, and the relative standard deviation (RSD) was 3.73% at 5 μg L−1 level (). This method was successfully applied to determine the total germanium in several Chinese herbal remedies.
研究了在改进铋膜电极(BiFE)上催化吸附阴极溶出伏安法测定邻苯三酚存在下痕量锗的方法。Ge(IV)-邻苯三酚配合物在−0.79 V(相对于SCE)下，在0.1 M醋酸缓冲溶液(pH 4.8)中，在−0.34 V的沉积电位下观察到一个清晰而敏感的剥离峰。加入KBrO3催化增强了还原电流。对实验变量和潜在干扰进行了研究。与在不含柠檬酸三钠的HAc-NaAc溶液中电镀的BiFE相比，在含柠檬酸三钠的HAc-NaAc溶液中电镀的改进BiFE对锗(IV)的电分析性能更好。在优化条件下，Ge(IV)在5 μg L−1水平下的检出限为60 ng L−1，相对标准偏差(RSD)为3.73%()。该方法成功地测定了几种中草药中总锗的含量。
{"title":"Determination of Total Germanium in Chinese Herbal Remedies by Square-Wave Catalytic Adsorptive Cathodic Stripping Voltammetry at an Improved Bismuth Film Electrode","authors":"Shangwei Zhong, Jiali Su, Liang Chen, Jie Tong, Wenfang Jia, Xiangjun Li, H. Zou","doi":"10.1155/2013/735019","DOIUrl":"https://doi.org/10.1155/2013/735019","url":null,"abstract":"A catalytic adsorptive cathodic stripping voltammetric method on an improved bismuth film electrode (BiFE) for the determination of trace germanium in the presence of pyrogallol has been investigated. A well-defined and sensitive stripping peak of Ge(IV)-pyrogallol complex was observed at −0.79 V (versus SCE) in a 0.1 M acetate buffer solution (pH 4.8) at a deposition potential of −0.34 V. The reduction current is catalytically enhanced by adding KBrO3. The experimental variables and potential interference were studied. Compared with the BiFE plated in the solution prepared based on HAc-NaAc without trisodium citrate, the improved BiFE electrodeposited in the solution of HAc-NaAc containing trisodium citrate displayed a better electroanalytical performance for the determination of germanium(IV). Under the optimized conditions, the detection limit of Ge(IV) was 60 ng L−1, and the relative standard deviation (RSD) was 3.73% at 5 μg L−1 level (). This method was successfully applied to determine the total germanium in several Chinese herbal remedies.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":"2013 1","pages":"1-7"},"PeriodicalIF":1.8,"publicationDate":"2013-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/735019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64230177","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}
G. D. Peckham, Brian E. Hew, D. Waller, Charles R. Holdaway, Michael Jen
Antibody-based detection assays are generally robust, a desirable characteristic for in-the-field use. However, to quantify the colorimetric or fluorescent signal, these assays require expensive and fragile instruments which are ill-suited to in-the-field use. Lateral flow devices (LFDs) circumvent these barriers to portability but suffer from poor sensitivity and subjective interpretation. Here, an antibody-based method for detecting Bacillus anthracis spores via amperometric signal generation is compared to ELISA and LFDs. This amperometric immunoassay uses antibody conjugated to magnetic beads and glucose oxidase (GOX) along with the electron mediator 2, 6-dichlorophenolindophenol (DCPIP) for production of a measurable current from a 0.4 V bias voltage. With similar sensitivity to ELISA, the assay can be completed in about 75 minutes while being completely powered and operated from a laptop computer. Immunoassay amperometry holds promise for bringing low-cost, quantitative detection of hazardous agents to the field.
{"title":"Amperometric Detection of Bacillus anthracis Spores: A Portable, Low-Cost Approach to the ELISA","authors":"G. D. Peckham, Brian E. Hew, D. Waller, Charles R. Holdaway, Michael Jen","doi":"10.1155/2013/803485","DOIUrl":"https://doi.org/10.1155/2013/803485","url":null,"abstract":"Antibody-based detection assays are generally robust, a desirable characteristic for in-the-field use. However, to quantify the colorimetric or fluorescent signal, these assays require expensive and fragile instruments which are ill-suited to in-the-field use. Lateral flow devices (LFDs) circumvent these barriers to portability but suffer from poor sensitivity and subjective interpretation. Here, an antibody-based method for detecting Bacillus anthracis spores via amperometric signal generation is compared to ELISA and LFDs. This amperometric immunoassay uses antibody conjugated to magnetic beads and glucose oxidase (GOX) along with the electron mediator 2, 6-dichlorophenolindophenol (DCPIP) for production of a measurable current from a 0.4 V bias voltage. With similar sensitivity to ELISA, the assay can be completed in about 75 minutes while being completely powered and operated from a laptop computer. Immunoassay amperometry holds promise for bringing low-cost, quantitative detection of hazardous agents to the field.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":"2013 1","pages":"1-6"},"PeriodicalIF":1.8,"publicationDate":"2013-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/803485","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64260496","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}
Nanostructured molybdenum disulfide thin films were deposited on various substrates by direct current (DC) electrolysis form aqueous electrolyte containing molybdate and sulfide ions. Post deposition annealing at higher temperatures in the range 450–700°C transformed the as-deposited amorphous films to nanocrystalline structure. High temperature X-ray diffraction studies clearly recorded the crystal structure transformations associated with grain growth with increase in annealing temperature. Surface morphology investigations revealed featureless structure in case of as-deposited surface; upon annealing it converts into a surface with protruding nanotubes, nanorods, or dumbbell shape nanofeatures. UV-visible and FTIR spectra confirmed about the presence of Mo-S bonding in the deposited films. Transmission electron microscopic examination showed that the annealed MoS2 films consist of nanoballs, nanoribbons, and multiple wall nanotubes.
{"title":"Simple Formation of Nanostructured Molybdenum Disulfide Thin Films by Electrodeposition","authors":"S. K. Ghosh, C. Srivastava, S. Nath, J. Celis","doi":"10.1155/2013/138419","DOIUrl":"https://doi.org/10.1155/2013/138419","url":null,"abstract":"Nanostructured molybdenum disulfide thin films were deposited on various substrates by direct current (DC) electrolysis form aqueous electrolyte containing molybdate and sulfide ions. Post deposition annealing at higher temperatures in the range 450–700°C transformed the as-deposited amorphous films to nanocrystalline structure. High temperature X-ray diffraction studies clearly recorded the crystal structure transformations associated with grain growth with increase in annealing temperature. Surface morphology investigations revealed featureless structure in case of as-deposited surface; upon annealing it converts into a surface with protruding nanotubes, nanorods, or dumbbell shape nanofeatures. UV-visible and FTIR spectra confirmed about the presence of Mo-S bonding in the deposited films. Transmission electron microscopic examination showed that the annealed MoS2 films consist of nanoballs, nanoribbons, and multiple wall nanotubes.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":"2013 1","pages":"1-7"},"PeriodicalIF":1.8,"publicationDate":"2013-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/138419","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64378007","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}
In the present study, a novel organic polymer consisting of 2,2,6,6-tetramethylpiperidine-N-oxyl group as an electroactive center is employed by synthesizing it from a commercially ready polymer. An investigation on electrochemical and battery properties of this material as a cathode active material in different electrolyte salts was conducted. A coin cell shows a discharge capacity of 40 mAh g−1 at 1 C which is 76% of its theoretical capacity. It is observed that there is no significant decrease in capacity value even at 2 C and 5 C which indicates that it is applicable for the high-power applications. Besides, a good cycle stability is obtained with the organic radical battery.
本研究以2,2,6,6-四甲基哌啶- n -氧基为电活性中心合成了一种新型有机聚合物。研究了该材料作为正极活性材料在不同电解质盐中的电化学性能和电池性能。硬币电池在1c下的放电容量为40 mAh g - 1，是其理论容量的76%。在2℃和5℃时，电容值没有明显下降，表明该方法适用于大功率应用。此外，该有机自由基电池具有良好的循环稳定性。
{"title":"Preparation and Investigation of a Novel Organic Polymer Consisting of 2,2,6,6-Tetramethylpiperidine-N-oxy as a Cathode Active Material in Li-Ion Batteries","authors":"Emre Biçer, A. Öktemer","doi":"10.1155/2013/732749","DOIUrl":"https://doi.org/10.1155/2013/732749","url":null,"abstract":"In the present study, a novel organic polymer consisting of 2,2,6,6-tetramethylpiperidine-N-oxyl group as an electroactive center is employed by synthesizing it from a commercially ready polymer. An investigation on electrochemical and battery properties of this material as a cathode active material in different electrolyte salts was conducted. A coin cell shows a discharge capacity of 40 mAh g−1 at 1 C which is 76% of its theoretical capacity. It is observed that there is no significant decrease in capacity value even at 2 C and 5 C which indicates that it is applicable for the high-power applications. Besides, a good cycle stability is obtained with the organic radical battery.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":"2013 1","pages":"1-6"},"PeriodicalIF":1.8,"publicationDate":"2013-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/732749","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64229240","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}
Ozone has wide applications in various fields. Electrocatalytic ozone generation technology as an alternative method to produce ozone is attractive. Anodic materials have significant effect on the ozone generation efficiency. The research progress on anodic materials for electrocatalytic ozone generation including the cell configuration and mechanism is addressed in this review. The lead dioxide and nickel-antimony-doped tin dioxide anode materials are introduced in detail, including their structure, property, and preparation. Advantages and disadvantages of different anode materials are also discussed.
{"title":"Anodic Materials for Electrocatalytic Ozone Generation","authors":"Yun‐Hai Wang, Qingyun Chen","doi":"10.1155/2013/128248","DOIUrl":"https://doi.org/10.1155/2013/128248","url":null,"abstract":"Ozone has wide applications in various fields. Electrocatalytic ozone generation technology as an alternative method to produce ozone is attractive. Anodic materials have significant effect on the ozone generation efficiency. The research progress on anodic materials for electrocatalytic ozone generation including the cell configuration and mechanism is addressed in this review. The lead dioxide and nickel-antimony-doped tin dioxide anode materials are introduced in detail, including their structure, property, and preparation. Advantages and disadvantages of different anode materials are also discussed.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":"2013 1","pages":"1-7"},"PeriodicalIF":1.8,"publicationDate":"2013-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/128248","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64375856","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}
The corrosion inhibition effect of Rabeprazole sulfide (RS) on mild steel in 1 M hydrochloric acid (HCl) was investigated using weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and chronoamperometric measurements. Protection efficiency of RS increases with the concentration and decreases with the rise in temperature. Adsorption of RS on mild steel surface in 1 M HCl follows Langmuir adsorption isotherm. The kinetic and thermodynamic parameters governing the adsorption process were calculated and discussed. The polarization results suggest that RS performed as an excellent mixed-type inhibitor for mild steel corrosion in 1 M HCl.
采用失重法、动电位极化法、电化学阻抗谱法和计时电流法研究了硫化雷贝拉唑(RS)在1 M盐酸(HCl)中对低碳钢的缓蚀作用。RS的保护效率随浓度升高而升高，随温度升高而降低。RS在1 M HCl溶液中在低碳钢表面的吸附遵循Langmuir吸附等温线。计算并讨论了控制吸附过程的动力学和热力学参数。极化结果表明，RS在1 M HCl中是一种优异的混合型缓蚀剂。
{"title":"Inhibiting Effects of Rabeprazole Sulfide on the Corrosion of Mild Steel in Acidic Chloride Solution","authors":"M. Pavithra, T. Venkatesha, M. K. P. Kumar","doi":"10.1155/2013/714372","DOIUrl":"https://doi.org/10.1155/2013/714372","url":null,"abstract":"The corrosion inhibition effect of Rabeprazole sulfide (RS) on mild steel in 1 M hydrochloric acid (HCl) was investigated using weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and chronoamperometric measurements. Protection efficiency of RS increases with the concentration and decreases with the rise in temperature. Adsorption of RS on mild steel surface in 1 M HCl follows Langmuir adsorption isotherm. The kinetic and thermodynamic parameters governing the adsorption process were calculated and discussed. The polarization results suggest that RS performed as an excellent mixed-type inhibitor for mild steel corrosion in 1 M HCl.","PeriodicalId":13933,"journal":{"name":"International journal of electrochemistry","volume":"2013 1","pages":"1-9"},"PeriodicalIF":1.8,"publicationDate":"2013-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1155/2013/714372","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64219862","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}
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