Academic literature on the topic 'Electrochemical kinetic parameters'

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Journal articles on the topic "Electrochemical kinetic parameters"

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A., H. EL-ASKALANI, A. EL-ABBADY S., A. AL-AHMADY A., M. ABOU EL-MAGD A., and H. MOUSTAFA A. "Electrochemical Reduction of 8-(2-Cyanoethyl)- 8-azabicyclo[3,2,1 ]oct-3-en-2-one." Journal of Indian Chemical Society Vol. 69, Jun 1992 (1992): 306–9. https://doi.org/10.5281/zenodo.6004474.

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Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah Al-Mukarramh, Saudi Arabia <em>Manuscript received 27 May 1991, revised 26 November 1991,&nbsp; accepted 10 April 1992</em> Polarographic reduction of the conjugated&nbsp;system in 8-(2-cyanoethyl)-8-azabicyclo[3,2,1]oct-3-en-2-one has been investigated in buffer solutions of varying pH&#39;s at the dropping mercury electrode. The nature of the electrode reduction and kinetic parameters have been calculated. The p<em>K</em> values were determined by spectrophotometric method. A mechanism for the electrochemica
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Sun, Funan, Xiao Peng, Xiangling Bai, et al. "EIS analysis of the electrochemical characteristics of the metal–water interface under the effect of temperature." RSC Advances 12, no. 27 (2022): 16979–90. http://dx.doi.org/10.1039/d2ra01634f.

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The mathematical model of impedance response and the equivalent circuit model is determined based on electrochemical kinetics theory, and a method for calculating the kinetic parameters of the metal interface is presented.
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N.Y., Sreedhar, Thriveni T., and N. Sasi Kumar K. "Electrochemical investigations and analysis of allethrin in formulations and in household dust." Journal of India Chemical Society Vol 81, Jul 2004 (2004): 613–15. https://doi.org/10.5281/zenodo.5832489.

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Department of Chemistry, S. V. University. Tirupati-517 502. India <em>E-mail</em>: sreedhar_ny2001 @yahoo.co.in&nbsp; &nbsp; &nbsp; <em>Fax</em> : 91-877-248485 <em>Manuscript received&nbsp;25 February 2003. revised 12 January 2004, accepted 18 February 2004</em> Allethrin, an effective synthetic pyrethroid against various pests is studied by employing the electrochemical techniques such us direct current polarography (DCP), cyclic voltammetry (CV), differential pulse polarography (DPP), controlled potential electrolysis (CPE) and millicoulometry (MC). The compound is electrochemically reduci
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Popov, Konstantin, Predrag Zivkovic, and Nebojsa Nikolic. "A mathematical model of the current density distribution in electrochemical cells." Journal of the Serbian Chemical Society 76, no. 6 (2011): 805–22. http://dx.doi.org/10.2298/jsc100312079p.

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An approach based on the equations of electrochemical kinetics for the estimation of the current density distribution in electrochemical cells is presented. This approach was employed for a theoretical explanation of the phenomena of the edge and corner effects. The effects of the geometry of the system, the kinetic parameters of the cathode reactions and the resistivity of the solution are also discussed. A procedure for a complete analysis of the current distribution in electrochemical cells is presented.
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Rekha, Sangtyani, Rawat J., S. Verma P., K. Varshney A., and Varshney S. "Electrochemical behavior of 4-acetylbiphenyl semicarbazone and 4-acetylbiphenyl thiosemicarbazone." Journal of Indian Chemical Society Vol. 88, Oct 2011 (2011): 1553–60. https://doi.org/10.5281/zenodo.5790629.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, Rajasthan, India <em>E-mail </em>: saritavarshney@rediffmail.com <em>Manuscript received 08 October 2010, revised 15 March 2011, accepted 17 March 2011</em> Electrochemical kinetic parameters of 4-acetylbiphenyl semicarbazone (4-AcBpSC) and 4-acetylbiphenyl thiosemicarbazone (4-AcBpTSC) in DMF media were measured using cyclic voltammetry on glassy carbon electrode (GCE) at several sweep rates, different concentrations and pH. Both the compounds exhibit a single diffusion controlled irreversible reduction peak. The charge-transfe
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Enache, Teodor Adrian, and Ana Maria Oliveira-Brett. "Electrochemical evaluation of glutathione S-transferase kinetic parameters." Bioelectrochemistry 101 (February 2015): 46–51. http://dx.doi.org/10.1016/j.bioelechem.2014.07.002.

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Rueda Rueda, Manuela, and Francisco Prieto Dapena. "Application of electrochemical impedance spectroscopy to the study of surface processes." Collection of Czechoslovak Chemical Communications 76, no. 12 (2011): 1825–54. http://dx.doi.org/10.1135/cccc2011118.

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The application of Electrochemical Impedance Spectroscopy to the study of surface electrode processes is reviewed. The impedance expressions and the physical meaning of the parameters included in them are shown for three surface processes: adsorption kinetics, diffusion towards partially blocked electrodes and surface confined redox reactions. The models are applied to selected examples, showing the capability of Electrochemical Impedance Spectroscopy to obtain fundamental kinetic information of these processes. A review with 83 references.
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Dusíková, Adriána, Timea Baranová, Ján Krahulec, et al. "Electrochemical Impedance Spectroscopy for the Sensing of the Kinetic Parameters of Engineered Enzymes." Sensors 24, no. 8 (2024): 2643. http://dx.doi.org/10.3390/s24082643.

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The study presents a promising approach to enzymatic kinetics using Electrochemical Impedance Spectroscopy (EIS) to assess fundamental parameters of modified enteropeptidases. Traditional methods for determining these parameters, while effective, often lack versatility and convenience, especially under varying environmental conditions. The use of EIS provides a novel approach that overcomes these limitations. The enteropeptidase underwent genetic modification through the introduction of single amino acid modifications to assess their effect on enzyme kinetics. However, according to the one-sam
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Enache, Andreea Floriana, Mircea Laurentiu Dan, and Nicolae Vaszilcsin. "Sulphite Electrooxidation in Alkaline Media on Skeletal Nickel Based 6 Layers Platinum Nanoparticles Electrode." Advanced Engineering Forum 27 (April 2018): 176–87. http://dx.doi.org/10.4028/www.scientific.net/aef.27.176.

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In this paper, anodic oxidation of sulphite ions on skeletal nickel based platinum nanoparticles electrode (6 layers) in aqueous alkaline solution was investigated in order to find the relationship between kinetic parameters and sulphite concentration. The purpose of this research is both to understand the oxidation mechanism and determine optimal parameters for oxidation process. Electrochemical behavior of sulphite ions has been studied by cyclic voltammetry and linear polarization. Tafel method was used in order to determine kinetic parameters and electrochemical impedance spectroscopy stud
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Petkovska, Sofija, and Rubin Gulaboski. "Diffusional Electrochemical Catalytic (EC’) Mechanism Featuring Chemical Reversibility of Regenerative Reaction-Theoretical Analysis in Cyclic Voltammetry." Croatica chemica acta 92, no. 4 (2020): 495–502. http://dx.doi.org/10.5562/cca3607.

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We consider theoretically a specific electrochemical-catalytic mechanism associated with reversible regenerative chemical reaction, under conditions of cyclic staircase voltammetry (CSV). We suppose scenario in which two electrochemically inactive substrates “S” and “Y”, together with initial electrochemically active reactant Ox are present in voltammetric cell from the beginning of the experiment. Substrate “S” selectively reacts with initial electroactive reactant Ox and creates electroactive “product” Red (+ Y) in a reversible chemical fashion. The initial chemical equilibrium determines th
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Book chapters on the topic "Electrochemical kinetic parameters"

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Lorandi, Francesca, Marco Fantin, Francesco De Bon, Abdirisak A. Isse, and Armando Gennaro. "Electrochemical Procedures To Determine Thermodynamic and Kinetic Parameters of Atom Transfer Radical Polymerization." In ACS Symposium Series. American Chemical Society, 2018. http://dx.doi.org/10.1021/bk-2018-1284.ch007.

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Kim, Myung-Hoon. "Advances in Derivative Voltammetry - A Search for Diagnostic Criteria of Several Electrochemical Reaction Mechanisms." In Analytical Chemistry - Advancement, Perspectives and Applications. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96409.

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New methods for analysis of current-potential curves in terms of their derivatives are presented for studying various types of electrode processes – such as simple electron transfer reactions (reversible, quasi-reversible, and irreversible electron transfer) as well as chemically coupled electron transfer reactions along with a diagnostic scheme for differentiating these various types of electrochemical reaction mechanisms. Expressions for first- and higher order derivatives are derived from theoretical analytical solutions for currents for the different types of electrode mechanisms. The deri
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Kumar, Ashish, and Abhinay Thakur. "Overview of the Properties, Applicability, and Recent Advancements of Some Natural Products Used as Potential Inhibitors in Various Corrosive Systems." In Handbook of Research on Corrosion Sciences and Engineering. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-7689-5.ch010.

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This chapter provides an overview of recent advances in using eco-friendly plant extracts as green corrosion inhibitors for metals and alloys in corrosive mediums, with a focus on literature from the past five years. Characterization techniques, including gravimetric analysis, electrochemical impedance spectroscopy, kinetic and adsorption parameters, computational analysis, and surface morphologies techniques, are discussed to provide insights into the inhibition mechanism and the morphological configuration. This chapter will give the audience a better understanding of the properties, applica
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"Software Able to Assist Electrochemistry." In Inorganic Electrochemistry Theory, Practice and Application, 2nd ed. The Royal Society of Chemistry, 2011. http://dx.doi.org/10.1039/bk9781849730716-00110.

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The first part of Chapter 3 introduces the reader to the digital simulation of electrochemical responses with a twofold educational and scientific/research purpose. The reader who is approaching the subject of electrochemistry for the first time should benefit from the basic equations that are the basis of a rational understanding of the matter as well as from ‘seeing in action’ the link between theoretical and experimental parameters through the accurate reproduction of the shapes of electrochemical responses. This also means taking advantage of an efficient acquisition of thermodynamic and k
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Alaoui, Khaoula, Ashraf Abousalem, Burak Tüzün, and Younes El Kacimi. "Triazepines Compounds as Novel Synthesized Corrosion Inhibitors." In New Challenges and Industrial Applications for Corrosion Prevention and Control. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2775-7.ch007.

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This chapter describes some recent good works in the field of metallic corrosion monitoring using Triazepine carboxylate inhibitors in hydrochloric acidic media. The different sections of this chapter cover electrochemical measurements and theoretical investigations. This review reveals Triazepine carboxylate compounds as very good inhibitors for mild steel in hydrochloric medium. The inhibition action of all Triazepine carboxylates compound studied was performed via adsorption on mild steel surface. Comparison between several adsorption isotherms reveal that the adsorption was spontaneous and
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Elbakkay, Mohamed H., S. I. El-Dek, and Ahmed A. Farghali. "Recent progress on layered double hydroxides-based electrocatalysts for electrochemical water splitting." In Electrochemistry. Royal Society of Chemistry, 2024. http://dx.doi.org/10.1039/9781837676408-00282.

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Replacing global depleting fossil fuels with sustainable energy sources that are affordable and environmentally-benign, is from the most pressing challenges for the future socio-economic developments. To that goal, electrochemical water splitting would provide green hydrogen fuel which is considered one of the most promising energy carriers. However, the viability of the process still hinges on the availability of robust earth-abundant electrocatalysts that catalyze the cathodic hydrogen evolution reaction (HER) and the anodic oxygen evolution reaction (OER). In recent years, transition metal
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"Nucleation and Crystal Shape Engineering." In Nanoscopic Materials: Size-Dependent Phenomena and Growth Principles, 2nd ed. The Royal Society of Chemistry, 2014. http://dx.doi.org/10.1039/bk9781849739078-00262.

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Given the dominance of surface energy, small crystallites are disfavoured relative to larger crystallites, and nucleation has to overcome an energy barrier before the volume energy starts to drive crystal growth. Small particles are formed under conditions of high oversaturation because this triggers instant formation of many nuclei and homogeneous growth, until after a short time span growth stops simultaneously for all of them, owing to starvation. Equilibrium crystal shapes are determined by Wulff's law, but inhibition due to selective adsorption or liquid layer formation at the different c
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Singh, S. "Electrochemical Oxidation of Perfluorooctanoic Acid (PFOA) from Aqueous Solution using Non-Active Ti/SnO2-Sb2O5/PbO2 Anodes." In Advances in Wastewater Treatment II. Materials Research Forum LLC, 2021. http://dx.doi.org/10.21741/9781644901397-2.

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In this study, electrochemical oxidation of perfluorooctanoic acid (PFOA, C7H15CO2H) from aqueous solution was examined in terms of PFOA and total organic carbon (TOC) removal by using Ti/SnO2-Sb2O5/PbO2non-active electrodes. The effects of operating parameters: initial pH (pHo), current density (j), and electrolyte concentration (m) at different time intervals were examined. Specific energy consumption (SEC) was used to determine the process proficiency. The C-C bond between C7F15 was first cleaved and thendegraded into fluoride ions (F−) and short carbon-chain per-fluorinated carboxylic acid
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Conference papers on the topic "Electrochemical kinetic parameters"

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Kim, Young-Jin. "Development and Validation of ECP Model for BWR Application." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00207.

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Abstract This paper describes the theoretical understanding and development of the electrochemical corrosion potential (ECP) predictive model to calculate the ECP of structural materials in BWRs and evaluates the effects of the various model parameters, which were experimentally produced in high temperature, high purity water. The electrochemical kinetic parameters for the O2 reduction and H2 oxidation reactions were measured experimentally in 288°C water. To develop the ECP model in the presence of H2O2, the electrochemical kinetic constants for the H2O reduction reaction were assumed to be t
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Kim, Young-Jin, and Leonard W. Niedrach. "Electrochemical Polarization Measurement on 304 SS in High Temperature, High Purity Water." In CORROSION 1997. NACE International, 1997. https://doi.org/10.5006/c1997-97113.

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Abstract The polarization behavior of the redox reactions of hydrogen (H2), oxygen (O2), and hydrogen peroxide (H2O2) on 304 stainless steel (SS) in high temperature, high purity water was studied in order to determine the electrochemical kinetic constants, such as Tafel slopes, exchange currents, orders of reaction and other parameters. These values are necessary to develop the electrochemical corrosion potential (ECP) predicitve model for boiling water reactors (BWRs), which is used to monitor the intergranular stress corrosion cracking (IGSCC) susceptibility of sensitized austenitic SS.
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Mraied, Hesham, and Alberto A. Sagüés. "Transient Cathodic Method to Measure Oxygen Diffusivity in Concrete." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13409.

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Abstract Oxygen diffusivity is a key parameter in modeling corrosion rate of steel in concrete. Measuring diffusivity can be a complicated and slow process, in conditions or geometries not always representative of those encountered by rebar in concrete. A method is introduced that eliminates some of those difficulties by using transient cathodic current measurements in reinforced concrete specimens subjected to alternating air/nitrogen mixtures. Kinetic parameters obtained from electrochemical testing were used as input to a physical model. Values of effective oxygen diffusing coefficients wer
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Diler, Erwan, Krystel Pelissier, Abdelkader Meroufel, and Nicolas Larche. "Investigation of the Mechanisms and Kinetic of Cathodic Disbondment in Seawater and Soils." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19258.

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Abstract To ensure the integrity of offshore and onshore buried structures against corrosion, a complementary approach combining cathodic protection (CP) and organic coatings is used. Following the ISO 15589-1, the efficiency of the CP is ensured by maintaining the CP potential within a protective range with a critical limit potential value of -1.200 V/CuCuSO4. This latter, beyond the hydrogen embrittlement risk, was mainly defined to limit the cathodic disbondment (CD). For onshore buried structures, lower potentials were observed in the field. The influence of over cathodic protection on the
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Macdonald, Digby D., and George R. Engelhardt. "After Two Decades of Predicting Crack Growth Rate-What Have We Learned?" In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04673.

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Abstract A review is presented of models that have been developed by the authors for estimating crack growth rate in sensitized Type 304 SS in Boiling Water Reactor (BWR) heat transport circuit (HTC) structural components, with emphasis on the electrochemistry of the process and on determinism (i.e., models whose prediction are constrained explicitly by the natural laws). Intergranular Stress Corrosion Cracking (IGSCC) under normal BWR operating conditions (T = 288°C, pure water) is primarily an electrochemical process that occurs at potentials that are more positive than a critical value of E
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Olivo, J. M. Domínguez, D. Young, B. Brown, and S. Nesic. "An Improved Methodology to Assess the Performance of Organic Corrosion Inhibitors." In CORROSION 2020. NACE International, 2020. https://doi.org/10.5006/c2020-14984.

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Abstract Qualification tests for determining the mitigation efficiency of surfactant-type organic corrosion inhibitors are conducted by performing corrosion rate measurements (typically with linear polarization resistance and/or weight loss method) at different inhibitor concentrations in simulated environmental conditions. The main assumption underlying this type of model is that the coverage of the metal surface by the corrosion inhibitor is equal to the corrosion mitigation efficiency. However, the present research highlights the effects that cause deficiencies in the interpretation of the
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Vijayalakshmi, P. R., and R. Rajalakshmi. "Inhibition of Mild Steel Corrosion Using Aqueous Extract of COcos Nucifera L. Peduncle in Acidic Solutions and Their Adsorption Characteristics." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02303.

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Abstract Cocos nucifera L. peduncle (CNP) extract, obtained from destructive distillation, as a possible source of green inhibitor, for the corrosion of mild steel in 1 M HCl was evaluated using mass loss method, potentiodynamic polarization technique, and electrochemical impedance spectroscopy (EIS). The inhibition efficiency was found to change with variation in concentration of the inhibitor, time of immersion, and temperature. The adsorption of the inhibitor molecule onto the metal surface was found to obey El-Awady kinetic thermodynamic and Frumkin adsorption isotherm. The activation ener
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Zheng, Yougui, Jing Ning, Bruce Brown, and Srdjan Nesic. "Investigation of Cathodic Reaction Mechanisms of H2S Corrosion Using a Passive SS304 Rotating Cylinder Electrode." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07340.

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Abstract The internal corrosion of pipeline steel in the presence of hydrogen sulfide (H2S) represents a significant problem in oil and gas industry. Its prediction and control pose a challenge for the corrosion engineers. In previously published research by the same authors, an electrochemical model of H2S corrosion was developed in both pure H2S and H2S/CO2 aqueous systems. An additional electrochemical cathodic reaction, direct H2S reduction, was uncovered based upon the carbon steel corrosion experimental results. However, in the carbon steel corrosion experiments, the cathodic sweeps expe
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Scully, John R., and Patrick J. Moran. "Application of Electrochemical Techniques to the Study of Hydrogen Embrittlement Phenomena." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86264.

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Abstract The parameters controlling hydrogen entry, transport, and trapping in high strength ferrous alloys and their subsequent effects on hydrogen embrittlement are reviewed. In addition, a series of slow strain rate measurements, electrochemical measurements to determine adsorption-absorption kinetics and Devanathan techniques to study hydrogen transport will be described. A discussion of the double pulse galvanostatic electrochemical technique being utilized for adsorptionabsorption studies is included. Most hydrogen permeation measurements reported in the literature presume surface adsorp
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Santana-Diaz, Ernesto, Lars Vendelbo Nielsen, and Andreas Junker-Holst. "A Critical Review of Parameters for Meaningful AC Corrosion Modelling." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-10847.

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Abstract A range of parameters must be considered carefully when modelling AC corrosion. Prediction of induced AC voltage profiles along pipelines due to shared right-of-way with high-voltage power lines has been practiced for decades. Modelling of the cathodic protection level on a pipeline resulting from types, position, and current output from CP sources, pipeline dimensions, coating conditions, soil conditions, isolation, etc., has also been implemented during several years. Computer aided prediction of corrosion rates caused by induced AC as a function of AC and DC current densities, coat
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