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Journal articles on the topic 'POTENTIAL CATHODE'

Author: Grafiati
Published: 11 September 2023

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1

Drennan, Dina M., Raji E. Koshy, David B. Gent, and Charles E. Schaefer. "Electrochemical treatment for greywater reuse: effects of cell configuration on COD reduction and disinfection byproduct formation and removal." Water Supply 19, no. 3 (2018): 891–98. http://dx.doi.org/10.2166/ws.2018.138.

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Abstract Electrochemical (EC) treatment presents a low-energy, water-reuse strategy with potential application to decentralized greywater treatment. This study focused on evaluating the impacts of cell configuration, current density, and cathode material on chemical oxygen demand (COD) removal and disinfection byproduct (DBP) formation in greywater. The formation and/or cathodic removal of active chlorine, perchlorate, haloacetic acids, and trihalomethanes were assessed during EC treatment. DBP formation was proportional to current density in undivided EC cells. Sequential anodic-cathodic trea
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2

Kolesnikov, A. V., and E. I. Ageenko. "Comparative studies of the discharge of hydronium ions on zinc, copper and aluminum cathodes." Izvestiya Vuzov. Tsvetnaya Metallurgiya (Universities' Proceedings Non-Ferrous Metallurgy) 28, no. 6 (2022): 22–31. http://dx.doi.org/10.17073/0021-3438-2022-6-22-31.

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Electrochemical reduction of hydrogen (hydronium ion) was carried out on zinc, aluminum and copper cathodes from acidic aqueous solutions containing sulfuric acid (0.09, 0.18 and 0.36 mol/l) to study the effect of electrolyte acidity, the type of cathodes used and potential values on electrolysis indicators. The studies were carried out on the potentiostat using a three-electrode cell under conditions of intensive electrolyte stirring with a magnetic stirrer. At the initial stage, electrolysis was performed in the following modes: potentiodynamic measurements at a sweep rate of 1 mV/s in the p
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3

Pratama, Affiano Akbar Nur, Ahmad Jihad, Salsabila Ainun Nisa, Ike Puji Lestari, Cornelius Satria Yudha, and Agus Purwanto. "Manganese Sulphate Fertilizer Potential as Raw Material of LMR-NMC Lithium-Ion Batteries: A Review." Materials Science Forum 1044 (August 27, 2021): 59–72. http://dx.doi.org/10.4028/www.scientific.net/msf.1044.59.

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Lithium-ion battery (Li-ion) is an energy storage device widely used in various types of electronic devices. The cathode is one of its main components, which was developed because it accelerates the transfer of electrons and battery cycle stability. Therefore, the LiNixMnyCozO2 (LNMC) cathode material, which has a discharge capacity of less than 200 mAh g−1, was further developed. Li-Mn-rich oxide cathode material (LMR-NMC) has also received considerable attention because it produces batteries with a specific capacity of more than 250 mAh g−1 at high voltages. The structure, synthesis method,
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4

Katerina Rutkovska, Hennadii Tulskyi, Valerii Homozov, and Alexandr Rusinov. "SUBSTANTIATION OF TECHNOLOGICAL INDICATORS OF APPLICATION OF A GAS-DIFFUSION CATHODE IN ELECTROCHEMICAL SYNTHESIS OF HYPOCHLORITE SOLUTIONS." Bulletin of the National Technical University "KhPI". Series: Chemistry, Chemical Technology and Ecology, no. 2 (4) (July 28, 2022): 11–17. http://dx.doi.org/10.20998/2079-0821.2020.02.02.

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A gas diffusion electrode was used to implement depolarization of the cathodic process with atmospheric oxygen to improve the production of sodium hypochlorite by electrolysis of an aqueous solution of sodium chloride. As materials for the implementation of depolarization of the cathode process on a porous cathode from the grid, we selected: manganese oxides, cobalt oxides, ruthenium oxides. These oxides are characterized by low overvoltage of the oxygen reaction. Oxides of selected metals were applied to a mesh current lead by thermal decomposition of coating solutionsю. The gas diffusion ele
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5

Xie, Lin, and Donald Kirk. "Stability of a Fe-Rich Cathode Catalyst in an Anion Exchange Membrane Fuel Cell." Catalysis Research 01, no. 03 (2021): 1. http://dx.doi.org/10.21926/cr.2103003.

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Fe-rich alloys have been widely studied as catalyst materials for the cathodic oxygen reduction reaction (ORR) in hydrogen fuel cells, and many have shown high activities. The stability of Fe-rich catalysts has also been researched, and some studies have shown promising results using an accelerated stress test (AST), which uses a potential cycling method. However, for commercial fuel cell applications, such as standby power systems, the catalyst has to tolerate a high potential for a long period, which can not be represented by the AST test. In this paper, the cathode stability of a Fe-rich ca
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Tremblay, Pier-Luc, Neda Faraghiparapari, and Tian Zhang. "Accelerated H2 Evolution during Microbial Electrosynthesis with Sporomusa ovata." Catalysts 9, no. 2 (2019): 166. http://dx.doi.org/10.3390/catal9020166.

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Microbial electrosynthesis (MES) is a process where bacteria acquire electrons from a cathode to convert CO2 into multicarbon compounds or methane. In MES with Sporomusa ovata as the microbial catalyst, cathode potential has often been used as a benchmark to determine whether electron uptake is hydrogen-dependent. In this study, H2 was detected by a microsensor in proximity to the cathode. With a sterile fresh medium, H2 was produced at a potential of −700 mV versus Ag/AgCl, whereas H2 was detected at −500 mV versus Ag/AgCl with cell-free spent medium from a S. ovata culture. Furthermore, H2 e
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7

Payman, Adele R., and Dan M. Goebel. "Development of a 50-A heaterless hollow cathode for electric thrusters." Review of Scientific Instruments 93, no. 11 (2022): 113543. http://dx.doi.org/10.1063/5.0124694.

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Hollow cathodes in electric thrusters normally use an external heater to raise the thermionic electron emitter to emission temperatures. These heaters are a potential single-point failure in the thruster and add a separate power supply to the power processing unit. Heaterless hollow cathodes are attractive for their compact size and potential higher reliability but have only been reliably demonstrated to date in small hollow cathodes capable of discharge currents below around 5 A. A new heaterless LaB6 hollow cathode has been developed that is capable of discharge currents from 5 to 50 A. The
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8

Matos, Luís, and José Martins. "Analysis of an Educational Cathodic Protection System with a Single Drainage Point: Modeling and Experimental Validation in Aqueous Medium." Materials 11, no. 11 (2018): 2099. http://dx.doi.org/10.3390/ma11112099.

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Cathodic protection, often taught in curricular units, such as corrosion and materials science, is an important subject in the study of chemical engineering. The implementation of lab setups and experimental activities in this field, are core to promoting understanding of the underlying concepts and to developing “hands-on” skills fundamental to the success of future process engineers. This paper reports the influence of different variables on the electrical potential and current behaviors of an educational cathodic protection system operated with a single drainage point. The system comprised
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9

Mitsushima, Shigenori, Ashraf Abdel Haleem, Kensaku Nagasawa, et al. "(Invited) Leak Current Analysis of Stop Operation and Its Modeling for the Development of Bipolar Alkaline Water Electrolyzer Electrodes." ECS Meeting Abstracts MA2022-01, no. 33 (2022): 1344. http://dx.doi.org/10.1149/ma2022-01331344mtgabs.

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Introduction Water electrolysis is expected a key device to introduce large-scale renewable electricity under management of power grid and electrification of non-electric sector. While alkaline water electrolysis (AWE) systems are well-developed large system, degradation under fluctuated operation with start and stop operation is significant issue to combine photovoltaic and/or wind turbine generation is significant issue. In this study, we have been investigated reverse current, which is leak current through manifold of bipolar alkaline water electrolyzers, and electrode potential behavior of
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10

Honda, Hisashi, and Katsuhide Misono. "the Cathode fall potential of cold cathode fluorescent lamps." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 73, Appendix (1989): 8. http://dx.doi.org/10.2150/jieij1980.73.appendix_8.

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11

Pisciotta, John M., Zehra Zaybak, Douglas F. Call, Joo-Youn Nam, and Bruce E. Logan. "Enrichment of Microbial Electrolysis Cell Biocathodes from Sediment Microbial Fuel Cell Bioanodes." Applied and Environmental Microbiology 78, no. 15 (2012): 5212–19. http://dx.doi.org/10.1128/aem.00480-12.

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ABSTRACTElectron-accepting (electrotrophic) biocathodes were produced by first enriching graphite fiber brush electrodes as the anodes in sediment-type microbial fuel cells (sMFCs) using two different marine sediments and then electrically inverting the anodes to function as cathodes in two-chamber bioelectrochemical systems (BESs). Electron consumption occurred at set potentials of −439 mV and −539 mV (versus the potential of a standard hydrogen electrode) but not at −339 mV in minimal media lacking organic sources of energy. Results at these different potentials were consistent with separate
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12

Kheawhom, Soorathep, and Sira Suren. "Printed air cathode for flexible and high energy density zinc-air battery." MRS Advances 1, no. 53 (2016): 3585–91. http://dx.doi.org/10.1557/adv.2016.443.

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ABSTRACTFlexible zinc-air batteries were fabricated using an inexpensive screen-printing technique. The anode and cathode current collectors were printed using commercial nano-silver conductive ink on a polyethylene terephthalate (PET) substrate and a polypropylene (PP) membrane, respectively. Air cathodes made of blended carbon black with inexpensive metal oxides including manganese oxide (MnO2) and cerium oxide (CeO2), were studied. The presence of the metal oxides in the air cathodes enhanced the oxygen reduction reaction which is the most important cathodic reaction in zinc-air batteries.
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13

Włodarczyk, Barbara, and Paweł P. Włodarczyk. "Electricity Production from Yeast Wastewater in Membrane-Less Microbial Fuel Cell with Cu-Ag Cathode." Energies 16, no. 6 (2023): 2734. http://dx.doi.org/10.3390/en16062734.

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Wastewater has high potential as an energy source. Therefore, it is important to recover even the smallest part of this energy, e.g., in microbial fuel cells (MFCs). The obtained electricity production depends on the process rate of the electrodes. In MFC, the microorganisms are the catalyst, and the cathode is usually made of carbon material (e.g., with the addition of Pt). To increase the MFC efficiency (and reduce costs by reducing use of the noble metals), it is necessary to search the new cathode materials. In this work, the electricity production from yeast wastewater in membrane-less mi
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14

Brzezinka, Tomasz L., Jeff Rao, Jose M. Paiva, et al. "Facilitating TiB2 for Filtered Vacuum Cathodic Arc Evaporation." Coatings 10, no. 3 (2020): 244. http://dx.doi.org/10.3390/coatings10030244.

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TiB2 is well established as a superhard coating with a high melting point and a low coefficient of friction. The brittle nature of borides means they cannot be utilised with arc evaporation, which is commonly used for the synthesis of hard coatings as it provides a high deposition rate, fully ionised plasma and good adhesion. In this work, TiB2 conical cathodes with non-standard sintering additives (carbon and TiSi2) were produced, and the properties of the base material, such as grain structure, hardness, electrical resistivity and composition, were compared to those of monolithic TiB2. The d
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15

Horiguchi, Genki, Hihidero Kamiya, and Yohei Okada. "(Digital Presentation) Development of Linear Paired Electrolysis for the Oxidation of Benzyl Alcohol." ECS Meeting Abstracts MA2022-01, no. 42 (2022): 1835. http://dx.doi.org/10.1149/ma2022-01421835mtgabs.

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Electrochemical processes are always coupled reactions, with anodic oxidation and cathodic reduction. Paired electrolysis system can produce valuable products at both anode and cathode, and maximizes the efficient use of applied energy. Especially, the conversion of a single raw material to a single valuable product by paired electrolysis referred to as linear paired electrolysis. Since the electron transfers at both electrodes can produce a single valuable product in the linear paired electrolysis system, a single compound is generated with a current efficiency of 200%, theoretically. The lin
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16

Sui, Dong, Meijia Chang, Zexin Peng, et al. "Graphene-Based Cathode Materials for Lithium-Ion Capacitors: A Review." Nanomaterials 11, no. 10 (2021): 2771. http://dx.doi.org/10.3390/nano11102771.

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Lithium-ion capacitors (LICs) are attracting increasing attention because of their potential to bridge the electrochemical performance gap between batteries and supercapacitors. However, the commercial application of current LICs is still impeded by their inferior energy density, which is mainly due to the low capacity of the cathode. Therefore, tremendous efforts have been made in developing novel cathode materials with high capacity and excellent rate capability. Graphene-based nanomaterials have been recognized as one of the most promising cathodes for LICs due to their unique properties, a
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17

Hayashi, Hideki, Shien-Fong Lin, Boyoung Joung, Hrayr S. Karagueuzian, James N. Weiss, and Peng-Sheng Chen. "Virtual electrodes and the induction of fibrillation in Langendorff-perfused rabbit ventricles: the role of intracellular calcium." American Journal of Physiology-Heart and Circulatory Physiology 295, no. 4 (2008): H1422—H1428. http://dx.doi.org/10.1152/ajpheart.00001.2008.

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A strong premature electrical stimulus (S2) induces both virtual anodes and virtual cathodes. The effects of virtual electrodes on intracellular Ca2+ concentration ([Ca2+]i) transients and ventricular fibrillation thresholds (VFTs) are unclear. We studied 16 isolated, Langendorff-perfused rabbit hearts with simultaneous voltage and [Ca2+]i optical mapping and for vulnerable window determination. After baseline pacing (S1), a monophasic (10 ms anodal or cathodal) or biphasic (5 ms-5 ms) S2 was applied to the left ventricular epicardium. Virtual electrode polarizations and [Ca2+]i varied dependi
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18

Li, Rui Feng, Shou Cheng He та Lu Cun Guo. "Effect of Ce0.8Sm0.2O1.9 Interlayer on the Electrochemical Performance of LaBaCo2O5+δ Cathode for IT-SOFCs". Applied Mechanics and Materials 423-426 (вересень 2013): 532–36. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.532.

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The Ce0.8Sm0.2O1.9(SDC) interlayer was prepared by screen-printing method between LaBaCo2O5+δ(LBCO) cathode and 8YSZ electrolyte for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The effect of SDC interlayer on the electrochemical performance of LBCO cathode was investigated. Experimental results showed that the LBCO cathode with SDC interlayer showed much lower area-specific resistance (ASR) and polarization overpotential than that of LBCO cathode without SDC interlayer at the same test condition, exhibiting the better electrochemical performance. For LBCO cathode with SDC inter
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19

Peters, Jens, Alexandra Peña Cruz, and Marcel Weil. "Exploring the Economic Potential of Sodium-Ion Batteries." Batteries 5, no. 1 (2019): 10. http://dx.doi.org/10.3390/batteries5010010.

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Sodium-ion batteries (SIBs) are a recent development being promoted repeatedly as an economically promising alternative to lithium-ion batteries (LIBs). However, only one detailed study about material costs has yet been published for this battery type. This paper presents the first detailed economic assessment of 18,650-type SIB cells with a layered oxide cathode and a hard carbon anode, based on existing datasheets for pre-commercial battery cells. The results are compared with those of competing LIB cells, that is, with lithium-nickel-manganese-cobalt-oxide cathodes (NMC) and with lithium-ir
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20

Subardi, A., and Y. P. Fu. "Structural, particle size distribution, and electrochemical behavior of double perovskite oxide doped Ce0.8Sm0.2O1.9 for intermediate temperature solid oxide fuel cells." IOP Conference Series: Earth and Environmental Science 1151, no. 1 (2023): 012051. http://dx.doi.org/10.1088/1755-1315/1151/1/012051.

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Abstract Double perovskite SmBa0.5Sr0.5Co2O5+δ(70%)+Ce0.8Sm0.2O1.9(30%) as SBSC70+SDC30 cathode was fabricated using solid-state reaction technique and investigated as cathode material for solid oxide fuel cells operating at intermediate temperature (IT-SOFC). This work aims to determine the effect of SDC electrolyte doping into double perovskite cathodes on SOFC performance. LS-POP carried out particle size distribution analysis, and the equipment operates on a light source (HE-Ne laser) basis. XRD was used to determine the structure of the cathode powder, and SEM was used to analyze the micr
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21

Lukovych, V. V. "On the pipeline polarization in the case of insulation delamination from its surface." Uspihi materialoznavstva 2020, no. 1 (2020): 40–45. http://dx.doi.org/10.15407/materials2020.01.040.

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The cathodic protection parameters for two pipelines with a diameter of 1420 mm were calculated. The protection zone for the first pipeline is 6 km long and for the second one it is 5 km. The cathode station current is 12,9 A for the first pipeline and 4 A for the second one. There are a damage and detachment of pipeline insulation, andconsequently a thin layer of electrolyte is located in the detachment area between the metal surface and the insulation. Almost the entire surface of the pipeline has polarization potential. For the first pipeline, the values of the protection potential at neigh
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22

Kuntyi, Оrest, Galyna Zozulya, and Mariana Shepida. "CO2 Electroreduction in Organic Aprotic Solvents: A Mini Review." Journal of Chemistry 2022 (July 31, 2022): 1–12. http://dx.doi.org/10.1155/2022/1306688.

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An annual increase of CO2 concentrations in the atmosphere causes global environmental problems, addressed by systematic research to develop effective technologies for capturing and utilizing carbon dioxide. Electrochemical catalytic reduction is one of the effective directions of CO2 conversion into valuable chemicals and fuels. The electrochemical conversion of CO2 at catalytically active electrodes in aqueous solutions is the most studied. However, the problems of low selectivity for target products and hydrogen evolution are unresolved. Literature sources on CO2 reduction at catalytically
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23

Luo, Shiqiang, Shiwei Liu, Guoshen Yang, et al. "A thin flexible zinc battery enabled by simultaneously electro-depositing both electrodes in acetate electrolytes." Journal of Physics: Conference Series 2552, no. 1 (2023): 012001. http://dx.doi.org/10.1088/1742-6596/2552/1/012001.

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Abstract Electrolytic batteries with the anode or cathode formed by electro-deposition from the electrolytes show promising potential for simplifying the fabrication process of flexible and micro-size rechargeable batteries. Thin flexible zinc batteries with both anode and cathode electro-deposited simultaneously are demonstrated and investigated here. We find that the acetate anions (Ac-) show excellent electro-depositing efficiency for manganese oxide cathodes, which enable a capacity of 0.26 mAh/cm2 with only carbon current collectors and electrolytes.
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24

Park, Nam-Yung, Jae-Min Kim, and Yang-Kook Sun. "Advanced Concentration Gradient Cathode Material for Next-Generation Electric Vehicles." ECS Meeting Abstracts MA2022-02, no. 3 (2022): 324. http://dx.doi.org/10.1149/ma2022-023324mtgabs.

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With the prevalence of electric vehicles (EVs), the use of Li-ion batteries (LIBs) in EVs presents a new set of challenges such as cost, charging behavior, driving range per charge, risk of thermal runaway, and battery life. As the performance of LIBs is largely determined by the cathode material, the development of high-performance LIBs for EVs has focused on increasing the capacity of the cathode by using Ni-rich Li[NixCoyAl1−x−y]O2 (NCA) and Li[NixCoyMn1−x−y]O2 (NCM) cathodes.1 Ni-rich core encapsulated by a shell with concentration gradients (CSG) is the only field-proven strategy that is
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25

Bi, Yujing, Jinhui Tao, Yuqin Wu, et al. "Reversible planar gliding and microcracking in a single-crystalline Ni-rich cathode." Science 370, no. 6522 (2020): 1313–17. http://dx.doi.org/10.1126/science.abc3167.

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High-energy nickel (Ni)–rich cathode will play a key role in advanced lithium (Li)–ion batteries, but it suffers from moisture sensitivity, side reactions, and gas generation. Single-crystalline Ni-rich cathode has a great potential to address the challenges present in its polycrystalline counterpart by reducing phase boundaries and materials surfaces. However, synthesis of high-performance single-crystalline Ni-rich cathode is very challenging, notwithstanding a fundamental linkage between overpotential, microstructure, and electrochemical behaviors in single-crystalline Ni-rich cathodes. We
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Chen, Long, Ameet Pinto, and Akram N. Alshawabkeh. "Activated Carbon as a Cathode for Water Disinfection through the Electro-Fenton Process." Catalysts 9, no. 7 (2019): 601. http://dx.doi.org/10.3390/catal9070601.

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Unlike many other water disinfection methods, hydroxyl radicals (HO•) produced by the Fenton reaction (Fe2+/H2O2) can inactivate pathogens regardless of taxonomic identity of genetic potential and do not generate halogenated disinfection by-products. Hydrogen peroxide (H2O2) required for the process is typically electrogenerated using various carbonaceous materials as cathodes. However, high costs and necessary modifications to the cathodes still present a challenge to large-scale implementation. In this work, we use granular activated carbon (GAC) as a cathode to generate H2O2 for water disin
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27

Nguyen, Thang Phan, and Il Tae Kim. "Iron-Vanadium Incorporated Ferrocyanides as Potential Cathode Materials for Application in Sodium-Ion Batteries." Micromachines 14, no. 3 (2023): 521. http://dx.doi.org/10.3390/mi14030521.

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Sodium-ion batteries (SIBs) are potential replacements for lithium-ion batteries owing to their comparable energy density and the abundance of sodium. However, the low potential and low stability of their cathode materials have prevented their commercialization. Prussian blue analogs are ideal cathode materials for SIBs owing to the numerous diffusion channels in their 3D structure and their high potential vs. Na/Na+. In this study, we fabricated various Fe-V-incorporated hexacyanoferrates, which are Prussian blue analogs, via a one-step synthesis. These compounds changed their colors from blu
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28

Bazzoni, B., S. Lorenzi, P. Marcassoli, and T. Pastore. "Current and Potential Distribution Modeling for Cathodic Protection of Tank Bottoms." Corrosion 67, no. 2 (2011): 026001–1. http://dx.doi.org/10.5006/1.3553930.

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Abstract Aboveground tanks for the storage of liquid hydrocarbon are often erected with a secondary containment membrane installed below the tank bottom to prevent soil contamination in case of leakage. The design of impressed current cathodic protection in the presence of the plastic membrane is based on distributed anodes installed in the space between the tank bottom and the membrane; among available anodes, the most commonly used are the titanium grid or ribbon activated with noble metal oxides. The configuration of the grid or ribbon anode system confined in the closed space between the b
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Bitenc, Jan, Tjaša Pavčnik, Urban Košir, and Klemen Pirnat. "Quinone Based Materials as Renewable High Energy Density Cathode Materials for Rechargeable Magnesium Batteries." Materials 13, no. 3 (2020): 506. http://dx.doi.org/10.3390/ma13030506.

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Organic cathode materials are promising cathode materials for multivalent batteries. Among organic cathodes, anthraquinone (AQ) has already been applied to various metal‒organic systems. In this work, we compare electrochemical performance and redox potential of AQ with 1,4-naphthoquinone (NQ) and 1,4-benzoquinone (BQ), both of which offer significantly higher theoretical energy density than AQ and are tested in two different Mg electrolytes. In Mg(TFSI)2-2MgCl2 electrolyte, NQ and BQ exhibit 0.2 and 0.5 V higher potential than AQ, respectively. Furthermore, an upshift of potential for 200 mV
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Xia, Yang, Zheng Fang, Chengwei Lu, et al. "A Facile Pre-Lithiated Strategy towards High-Performance Li2Se-LiTiO2 Composite Cathode for Li-Se Batteries." Nanomaterials 12, no. 5 (2022): 815. http://dx.doi.org/10.3390/nano12050815.

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Conventional lithium-ion batteries with a limited energy density are unable to assume the responsibility of energy-structure innovation. Lithium-selenium (Li-Se) batteries are considered to be the next generation energy storage devices since Se cathodes have high volumetric energy density. However, the shuttle effect and volume expansion of Se cathodes severely restrict the commercialization of Li-Se batteries. Herein, a facile solid-phase synthesis method is successfully developed to fabricate novel pre-lithiated Li2Se-LiTiO2 composite cathode materials. Impressively, the rationally designed
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Alikin, Denis, Boris Slautin, and Andrei Kholkin. "Revealing Lithiation Kinetics and Battery Degradation Pathway in LiMn2O4-Based Commercial Cathodes via Electrochemical Strain Microscopy." Batteries 8, no. 11 (2022): 220. http://dx.doi.org/10.3390/batteries8110220.

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The capacity fade during the cycling of lithium batteries is a key factor limiting further progress in the improvement of electric vehicles, wearable electronic devices, alternative energy sources, etc. One of the main reasons for capacity loss is battery cathode degradation, which significantly influences the battery lifetime. Despite in-depth knowledge of battery degradation at the chemical level, the kinetics of the degradation at the resolution of the individual elements of the cathode are not fully understood. Here, we studied lithiation kinetics in commercial cathodes based on lithium ma
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Fonna, Syarizal, Syifaul Huzni, Muzaiyin Arika Putra, and Rudi Kurniawan. "Simulation the effect of anode-cathode displacement and anode type on reinforced concrete cathodic protection using BEM." MATEC Web of Conferences 197 (2018): 12001. http://dx.doi.org/10.1051/matecconf/201819712001.

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The aim of the study is to simulate the effect of anode-cathode displacement and anode type on the potential distribution of reinforced concrete (RC) cathodic protection (CP) system using boundary element method (BEM). For the simulation, Laplace equation was used to model the RC domain. The boundary conditions for the anode and cathode (reinforcing steel/rebar) were represented by its polarization curve. By using BEM, the electrical potential values on the whole domain should be calculated. Therefore, the effects of those parameters were studied based on the rebar electrical potential. For th
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33

Liu, Baishan. "Transition Metal Dichalcogenides for High−Performance Aqueous Zinc Ion Batteries." Batteries 8, no. 7 (2022): 62. http://dx.doi.org/10.3390/batteries8070062.

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Aqueous zinc ion batteries (ZIBs) with cost—effectiveness, air stability, and remarkable energy density have attracted increasing attention for potential energy storage system applications. The unique electrical properties and competitive layer spacing of transition metal dichalcogenides (TMDs) provide dramatical freedom for facilitating ion diffusion and intercalation, making TMDs suitable for ZIB cathode materials. The recently updated advance of TMDs for high−performance ZIB cathode materials have been summarized in this review. In particular, the key modification strategies of TMDs for rea
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Aliotta, Chiara, Maria Costa, Leonarda Francesca Liotta, Valeria La Parola, Giuliana Magnacca та Francesca Deganello. "Peculiar Properties of the La0.25Ba0.25Sr0.5Co0.8Fe0.2O3−δ Perovskite as Oxygen Reduction Electrocatalyst". Molecules 28, № 4 (2023): 1621. http://dx.doi.org/10.3390/molecules28041621.

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The electrochemical reduction of molecular oxygen is a fundamental process in Solid Oxide Fuel Cells and requires high efficiency cathode materials. Two La0.25Ba0.25Sr0.5Co0.8Fe0.2O3−δ-based perovskite compounds were prepared by solution combustion synthesis, and characterized for their structural, microstructural, surface, redox and electrochemical properties as potential cathodes in comparison with Ba0.5Sr0.5Co0.8Fe0.2O3−δ and La0.5Sr0.5Co0.8Fe0.2O3−δ perovskites. Results highlighted that calcination at 900 °C led to a “bi-perovskite heterostructure”, where two different perovskite structure
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Wang, Lifan, Qinling Shi, Chun Zhan, and Guicheng Liu. "One-Step Solid-State Synthesis of Ni-Rich Cathode Materials for Lithium-Ion Batteries." Materials 16, no. 8 (2023): 3079. http://dx.doi.org/10.3390/ma16083079.

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Ni-rich cathodes are expected to serve as critical materials for high-energy lithium-ion batteries. Increasing the Ni content can effectively improve the energy density but usually leads to more complex synthesis conditions, thus limiting its development. In this work, a simple one-step solid-state process for synthesizing Ni-rich ternary cathode materials NCA (LiNi0.9Co0.05Al0.05O2) was presented, and the synthesis conditions were systematically studied. It was found that the synthesis conditions have a substantial impact on electrochemical performance. Furthermore, the cathode materials prod
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Wang, Zhuo, and Guosheng Shao. "High-capacity cathodes for magnesium lithium chlorine tri-ion batteries through chloride intercalation in layered MoS2: a computational study." Journal of Materials Chemistry A 6, no. 16 (2018): 6830–39. http://dx.doi.org/10.1039/c8ta01050a.

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Rechargeable magnesium ion batteries (MIBs) have great potential as an alternative technology to substitute resource-limited lithium-ion batteries (LIBs), but rather difficult transportation of Mg<sup>2+</sup> in cathodes and hence low cathode capacities loom as a major roadblock for their applications.
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Zhang, Long, and Yongchang Liu. "Aqueous Zinc–Chalcogen Batteries: Emerging Conversion-Type Energy Storage Systems." Batteries 9, no. 1 (2023): 62. http://dx.doi.org/10.3390/batteries9010062.

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Aqueous zinc (Zn) metal batteries are considered competitive candidates for next-generation energy storage, attributed to the abundance, low redox potential, and high theoretical capacity of Zn. However, conventional cathode materials are mainly based on ion-insertion electrochemistry, which can only deliver limited capacity. The conversion-type aqueous zinc–chalcogen batteries (AZCBs) have received widespread attention because they combine the advantages of chalcogen cathodes (S, Se, and Te) and Zn anodes to significantly enhance their capacity. Research on AZCBs has increased continuously; h
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JACOBY, MITCH. "New battery cathode packs higher potential." Chemical & Engineering News 76, no. 16 (1998): 12. http://dx.doi.org/10.1021/cen-v076n016.p012.

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Kulentsan, Anton L., Dmitriy A. Shutov, and Vladimir V. Rybkin. "IMPACT OF TRANSFER PROCESSES OF LIQIUD CATHODE COMPONENTS ON PHYSICAL-CHEMICAL PARAMETERS OF ATMOSPHERIC PRESSURE DC DISCHARGE." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 60, no. 6 (2017): 52. http://dx.doi.org/10.6060/tcct.2017606.5566.

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Experimental data on glow discharge parameters of atmospheric pressure in air with cathodes from distilled water and water containing ions of potassium, sodium and copper (II) are obtained. Chlorides of the corresponding salts were used. The current range was 20-60 mA, and the solution concentrations were -0.1-0.4 mol/l. The cathode drops of the potential and the electric fields in the plasma are determined by the mobile anode method. With emission spectroscopy by modeling the unresolved rotational structure of the emission bands of the second positive system of nitrogen molecules, gas tempera
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Weret, Misganaw Adigo, Wei-Nien Su, and Bing-Joe Hwang. "Organosulfur Cathodes with High Compatibility in Carbonate Ester Electrolytes for Long Cycle Lithium–Sulfur Batteries." ECS Meeting Abstracts MA2022-02, no. 4 (2022): 536. http://dx.doi.org/10.1149/ma2022-024536mtgabs.

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Lithium-sulfur batteries (LSBs) are potential candidates for high energy storage technologies due to their theoretical gravimetric energy density of ∼2600 Wh kg-1 and lightweight electrodes. In LSBs, ether electrolytes are frequently utilized because sulfur cathodes and the polysulfide redox intermediate species are chemically stable. However, LSBs in ether electrolytes suffer from the dissolution of higher-order polysulfides, and migration of the soluble polysulfides into electrolytes causes the polysulfide shuttle effect. The shuttle polysulfides react with the lithium anode and give rise to
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41

Sanglay, Giancarlo Dominador D., Jayson S. Garcia, Mecaelah S. Palaganas, et al. "Borate-Based Compounds as Mixed Polyanion Cathode Materials for Advanced Batteries." Molecules 27, no. 22 (2022): 8047. http://dx.doi.org/10.3390/molecules27228047.

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Rational design of new and cost-effective advanced batteries for the intended scale of application is concurrent with cathode materials development. Foundational knowledge of cathode materials’ processing–structure–properties–performance relationship is integral. In this review, we provide an overview of borate-based compounds as possible mixed polyanion cathode materials in organic electrolyte metal-ion batteries. A recapitulation of lithium-ion battery (LIB) cathode materials development provides that rationale. The combined method of data mining and high-throughput ab initio computing was b
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42

Li, Ming Yu, Kun Kun Wang, You Wu Su, Lin Song, Gang Cao, and Gang Ren. "Study on Photo-Electro-Chemical Catalytic Degradation of Reactive Brilliant Red X-3B." Advanced Materials Research 213 (February 2011): 580–85. http://dx.doi.org/10.4028/www.scientific.net/amr.213.580.

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A new type of photo-electro-chemical catalytic reactor was designed. The cathode of the reactor was made of highly pure graphite and the anode was made of titanium dioxide. A saturated calomel electrode (SCE) was so used as the reference electrode that the electric potential of the cathode was determined. Under the condition of ultraviolet radiation and anodic bias-voltage, reactive brilliant red X-3B was degraded in the reactor synchronously by the process of photoelectrocatalysis with titanium dioxide anode and electrogenerated hydrogen peroxide through reducing dissolved oxygen with graphit
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43

Abduali, Baeshov, Ivanov Nikolay, and Myrzabekov Begzat. "Electrochemical Behavior of Selenium as Part of Composite Electrode in Sulfuric Acid Medium." JOURNAL OF ADVANCES IN CHEMISTRY 7, no. 3 (2011): 1378–84. http://dx.doi.org/10.24297/jac.v7i3.2373.

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The method of productiion of the composite selenium-graphitic electrodes based on organic polymer binder was proposed. Electrochemical behavior of the elementary selenium as content of composite electrode in sulfuric acid medium was assessed. A formation of hydrogen selenide during the cathode polarization, and formation of selenite and selenate ions was shown. An influence of potential spread velocity, acid concentration, and temperature of electrolyte were evaluated. Effective activation power for cathode process was estimated using the temperature-cathodic method.
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Zhang, Lei Lei, Jin Hua Huang, Zhao Yuan Song, Yi Dan Fu, Mo Liu та Tian Min He. "Evaluation and Optimization of Ba0.2Sr0.8Co0.9Nb0.1O3-δ-Gd0.1Ce0.9O1.95 Composite Cathodes for IT-SOFCs". Materials Science Forum 787 (квітень 2014): 221–26. http://dx.doi.org/10.4028/www.scientific.net/msf.787.221.

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Ba0.2Sr0.8Co0.9Nb0.1O3-δ(BSCN0.2)-xGd0.1Ce0.9O1.95(GDC) (x = 10, 20, 30 and 40 wt.%) composite cathodes were investigated for the potential application in the IT-SOFCs. The results of chemical compatibility measurement show that a small number of Gd and/or Ce ions may melt into the lattice of BSCN0.2 to form BSCN0.2-GDC solid solution. Thermal expansion coefficients effectively reduced by the incorporation of GDC. The electrochemical performance of BSCN0.2-xGDC composite cathodes increased with increasing x from 10 to 30 wt.%. When x = 30 wt.%, the area specific resistances were only 0.040 and
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Fitriana, Hana Nur, Jiye Lee, Sangmin Lee, et al. "Surface Modification of a Graphite Felt Cathode with Amide-Coupling Enhances the Electron Uptake of Rhodobacter sphaeroides." Applied Sciences 11, no. 16 (2021): 7585. http://dx.doi.org/10.3390/app11167585.

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Microbial electrosynthesis (MES) is a promising technology platform for the production of chemicals and fuels from CO2 and external conducting materials (i.e., electrodes). In this system, electroactive microorganisms, called electrotrophs, serve as biocatalysts for cathodic reaction. While several CO2-fixing microorganisms can reduce CO2 to a variety of organic compounds by utilizing electricity as reducing energy, direct extracellular electron uptake is indispensable to achieve highly energy-efficient reaction. In the work reported here, Rhodobacter sphaeroides, a CO2-fixing chemoautotroph a
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Brahmanandan, Sayoojyam, Shantikumar Nair, and Dhamodaran Santhanagopalan. "High-Performance Zr-Doped P3-Type Na0.67Ni0.33Mn0.67O2 Cathode for Na-Ion Battery Applications." Crystals 13, no. 9 (2023): 1339. http://dx.doi.org/10.3390/cryst13091339.

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Sodium-ion battery (SIB) technology started to bloom along with lithium-ion batteries (LIBs) as a supportive energy source to alleviate the cost of lithium sources for the development of energy storage devices and electric vehicles. Layered cathode materials are considered potential candidates to produce high-energy-density batteries. Among the layered cathode materials, P3-type cathodes are the least investigated in spite of their capacities, which are comparable to those of P2-type cathodes. P3-type cathodes show high polarization, leading to a poor cycle life, which impedes their extensive
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47

Sheng, Kun, Honghua Ge, Xin Huang, et al. "Formation and Inhibition of Calcium Carbonate Crystals under Cathodic Polarization Conditions." Crystals 10, no. 4 (2020): 275. http://dx.doi.org/10.3390/cryst10040275.

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The formation of CaCO3 crystals on the cathode surface and the scale-inhibition performance of scale inhibitor 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA) on the cathode surface were studied by methods of solution analysis, gravimetric analysis, SEM, FTIR, and XRD techniques. They were then compared with the results of the formation and suppression of CaCO3 crystals in aqueous solution. PBTCA had a good solution-scale-inhibition performance and good lattice-distortion effects on CaCO3 crystals in solution, which could change the CaCO3 from calcite to vaterite and aragonite crystals. The
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Saeki, Ryusei, and Takeshi Ohgai. "Determination of Activation Overpotential during the Nucleation of Hcp-Cobalt Nanowires Synthesized by Potentio-Static Electrochemical Reduction." Materials 11, no. 12 (2018): 2355. http://dx.doi.org/10.3390/ma11122355.

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The crystal growth process and ferromagnetic properties of electrodeposited cobalt nanowires were investigated by controlling the bath temperature and cathodic overpotential. The cathodic overpotential during electrodeposition of cobalt nanowire arrays, ΔEcath, was theoretically estimated by the difference between the cathode potential, Ecath, and the equilibrium potential, Eeq, calculated by the Nernst equation. On the other hand, the activation overpotential, ΔEact, was experimentally determined by the Arrhenius plot on the growth rate of cobalt nanowire arrays, Rg, versus (vs.) reciprocal t
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Sun, Shuo, Chen-Zi Zhao, Hong Yuan, et al. "Multiscale understanding of high-energy cathodes in solid-state batteries: from atomic scale to macroscopic scale." Materials Futures 1, no. 1 (2022): 012101. http://dx.doi.org/10.1088/2752-5724/ac427c.

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Abstract In the crucial area of sustainable energy storage, solid-state batteries (SSBs) with nonflammable solid electrolytes stand out due to their potential benefits of enhanced safety, energy density, and cycle life. However, the complexity within the composite cathode determines that fabricating an ideal electrode needs to link chemistry (atomic scale), materials (microscopic/mesoscopic scale), and electrode system (macroscopic scale). Therefore, understanding solid-state composite cathodes covering multiple scales is of vital importance for the development of practical SSBs. In this revie
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Fu, Jie, Haifang Wang, Riya Jin, et al. "Enhanced Electrodesorption Performance via Cathode Potential Extension during Capacitive Deionization." Applied Sciences 12, no. 6 (2022): 2874. http://dx.doi.org/10.3390/app12062874.

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Complete desorption of contaminants from electrode materials is required for the efficient utilization and long service life of capacitive deionization (CDI) but remains a major challenge. The electrodesorption capacity of CDI in the conventional electrode configuration is limited by the narrow electrochemical stability window of water, which lowers the operating potential to approximately 1.2 V. Here, we report a graphite anode–titanium cathode electrode configuration that extends the cathode potential to −1.7 V and provides an excellent (100%) electrodesorption performance, which is maintain
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