Academic literature on the topic 'Faradic current'

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Journal articles on the topic "Faradic current"

1

Shah, Anwar ul Haq Ali, Sadaf Zia, Gul Rahman, and Salma Bilal. "Performance Improvement of Gold Electrode towards Methanol Electrooxidation in Akaline Medium: Enhanced Current Density Achieved with Poly(aniline-co-2-hydroxyaniline) Coating at Low Overpotential." Polymers 14, no. 2 (2022): 305. http://dx.doi.org/10.3390/polym14020305.

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Electronically conducting poly (aniline-co-2-hydroxyaniline) (PACHA), a copolymer of aniline and 2-hydroxyaniline (2HA), was electrochemically coated on gold substrate for methanol electrooxidation in alkaline media. The electrochemical behavior of PACHA coated gold electrode towards methanol electrooxidation was investigated via cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) for application in an alkaline fuel cell. Methanol electrooxidation was observed at two different electrode potentials depending on the concentration of the base. At the PACHA coated gold electrode, the methanol oxidation peak was observed at lower overpotential (at 0.19 V) in a solution of high base concentration (1.8 M NaOH), which was 30 mV lower than the peak for the uncoated gold electrode. In addition, the Faradic current Imax obtained on the PACHA coated electrode (20 mA) was two times higher as compared to the Faradic current Imax of the un-modified gold electrode (10 mA). In solution of lower base concentration (0.06 M NaOH), the electrooxidation of methanol became sluggish on both electrodes, as indicated by peak shifting towards positive potential and with reduced faradaic current (at 0.74 V on PACHA coated electrode; Imax 10 mA). The electrooxidation of methanol at both lower and higher electrode potentials was analyzed mechanistically and discussed in light of the literature. EIS results were interpreted using Nyquist and Bode plots. The charge transfer resistance was decreased and pseudo-capacitive behavior changed to conductive behavior when external applied potential was increased from 0.1 V to 0.4 V.
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Baumung, Max, Florian Schönewald, Torben Erichsen, Cynthia A. Volkert, and Marcel Risch. "Influence of particle size on the apparent electrocatalytic activity of LiMn2O4 for oxygen evolution." Sustainable Energy & Fuels 3, no. 9 (2019): 2218–26. http://dx.doi.org/10.1039/c8se00551f.

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3

Abbas, Syed Asad, Seong-Hoon Kim, Hamza Saleem, Sung-Hee Ahn, and Kwang-Deog Jung. "Preparation of Metal Amalgam Electrodes and Their Selective Electrocatalytic CO2 Reduction for Formate Production." Catalysts 9, no. 4 (2019): 367. http://dx.doi.org/10.3390/catal9040367.

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Electrochemical CO2 reduction to produce formate ions has studied for the sustainable carbon cycle. Mercury in the liquid state is known to be an active metallic component to selectively convert CO2 to formate ions, but it is not scalable to use as an electrode in electrochemical CO2 reduction. Therefore, scalable amalgam electrodes with different base metals are tested to produce formate by an electrochemical CO2 reduction. The amalgam electrodes are prepared by the electrodeposition of Hg on the pre-electrodeposited Pd, Au, Pt and Cu nanoparticles on the glassy carbon. The formate faradaic efficiency with the Pd, Au, Pt and Cu is lower than 25%, while the one with the respective metal amalgams is higher than 50%. Pd amalgam among the tested samples shows the highest formate faradic efficiency and current density. The formate faradaic efficiency is recorded 85% at −2.1 V vs SCE and the formate current density is −6.9 mA cm−2. It is concluded that Pd2Hg5 alloy on the Pd amalgam electrode is an active phase for formate production in the electrochemical CO2 reduction.
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Zhu, Qing Jun, Alin Cao, Ji Wen Song, and Sheng Li Chen. "Distribution of Stray Current in Buried Pipeline." Advanced Materials Research 433-440 (January 2012): 6579–82. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.6579.

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Electrochemical corrosion happens when stray currents leak out of buried pipeline. This will threaten the safety of pipeline operation and operators. The distribution of stray current was studied by simulation system. The results indicate that stray current intensities have the same distribution with potential gradient Esx which parallel to the metallic pipeline. The distribution curves of stray current show regular symmetry. The stray currents increase gradually along the buried metallic pipeline. It reaches maximum at the pipeline midpoint. The potential gradient Esy distribution curves in y-direction show a hyperbolic shape. For the exits of faradic electric field, stray current intensity is maximum in the beginning and it flows into the pipeline. It flow along the pipeline and parallel to the pipeline at middle. After that, the stray currents begin to flow back to cathode and the stray current intensity reaches maximum at the end of pipeline.
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Tatu, Laurent. "Edgar Adrian (1889–1977) and Shell Shock Electrotherapy: A Forgotten History?" European Neurology 79, no. 1-2 (2018): 106–7. http://dx.doi.org/10.1159/000486762.

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The English electrophysiologist Edgar Adrian (1889–1977) was the recipient of the Nobel Prize for physiology in 1932 for his research on the functions of neurons. During World War I, at Queen Square in London, he devised an intensive electrotherapeutic treatment for shell-shocked soldiers. The procedure, developed with Lewis Yealland (1884–1954), was similar to “torpillage,” the faradic psychotherapy used in France. Adrian and Yealland considered that the pain accompanying the use of faradic current was necessary for both therapeutic and disciplinary reasons, especially because of the suspicion of malingering. According to Adrian, this controversial electric treatment was only able to remove motor or sensitive symptoms. After the war, he finally admitted that war hysteria was a complex and difficult phenomenon.
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6

Kaplyanskiy, V. "C. Ludlow. The Use of Electricity in Midwifery (New-York Medical Journal, 1893: January 14). On the use of electricity in obstetrics." Journal of obstetrics and women's diseases 7, no. 5 (2020): 428. http://dx.doi.org/10.17816/jowd75428.

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The author speaks only of faradic current, and examines its threefold action on a pregnant woman: 1) a calming effect on the general nervous system, 2) excitation of muscle contractions, 3) the ability of faradization to prevent and stop uterine bleeding. Pharadic current is very useful when chloroform, chloral-hydrate or morphine are more unacceptable, because of idiosyncrasy or weakness of the patient, as long as the maximum doses of these drugs are achieved without a proper effect, finally, when all is excreted.
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7

Bodamyali, T., J. M. Kanczler, B. Simon, D. R. Blake, and C. R. Stevens. "Effect of Faradic Products on Direct Current-Stimulated Calvarial Organ Culture Calcium Levels." Biochemical and Biophysical Research Communications 264, no. 3 (1999): 657–61. http://dx.doi.org/10.1006/bbrc.1999.1355.

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8

Morón, Carlos, Enrique Tremps, Alfonso Garcia, and Jose Andrés Somolinos. "Development of an Electrochemical Maltose Biosensor." Key Engineering Materials 495 (November 2011): 116–19. http://dx.doi.org/10.4028/www.scientific.net/kem.495.116.

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In this work, electrochemical maltose biosensors based on mutants of the maltose binding protein (MBP) are developed. A rutheniumIIcomplex (RuII), which is covalently attached to MBP, serves as an electrochemical reporter of MBP conformational changes. Biosensors were made through direct attachment of RuIIcomplex modified MBP to gold electrode surfaces. The responses of some individual mutants were evaluated using square wave voltammetry. A maltose-dependent change in Faradic current and capacitance was observed. It is therefore demonstrated that biosensors using generically this family of bacterial periplasmic binding proteins (bPBP) can be made lending themselves to facile biorecognition element preparation and low cost electrochemical transduction.
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9

Abdelatief, Emad Eldin Mohamed. "Effect of Transcutaneous Electrical Nerve Stimulation and Faradic Current Stimulation on the Recovery of Bell's Palsy." International Journal of Human Movement and Sports Sciences 8, no. 6 (2020): 369–79. http://dx.doi.org/10.13189/saj.2020.080608.

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10

جبر, Nasma Adnan, Aiyah Sabah نوري, Emad Eyad حسين, and Maha Adnan جبر. "A Review of Treatment Methods Using Electrical Stimulation." Journal of medical and pharmaceutical sciences 6, no. 6 (2022): 1–16. http://dx.doi.org/10.26389/ajsrp.b040922.

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This article deals with a theoretical study of methods of electrical stimulation therapy which is one of the physical therapy used to treat pain and increase the strength of the weak muscle where the treatment is done by connecting electrodes to the patient which in turn deliver electrical impulses through nerve paths at specific intervals. Also, the relationship between methods of electrical stimulation and types of electric current has been shown in this review, Stimulation methods were divided according to the type of current used where continuous current is used in the case of galvanic with high frequency and low current. Methods (Trabert, Leduc, Faradic, H-wave, Micro-current) use the pulse current with a frequency not exceeding 1000 Hz, while methods like Transcutaneous Electrical Nerve Stimulation (TENS), Four-pole interfering, Two-pole interfering, Isoplaner interfering, Neuromuscular, dipole interfering, diadynamic use alternating current with a frequency between (3600 Hz - 10000 Hz) and the value of the current is between (50 mA - 140 mA). The most important effect or use of electrical stimulation is to reduce pain (Analgesic effect), as well as, 2-pole and 4-pole interference effect on myorelaxation and spasmolytic. Finally, there are many studies that show that there are no long-term side effects of electrical stimulation, only some temporary effects resulting from the misuse of electrodes for the stimulation device or resulting from the use of high currents.
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