Relevant bibliographies by topics / Mechanism of cathodic reactions

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Mechanism of cathodic reactions'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Mechanism of cathodic reactions"

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Diao, Zhuo, Takaaki Imaizumi, Keita Mizuno, et al. "Investigation on Reaction Mechanism in an SOFC Composite Cathode by Using Patterned Thin Film Electrodes." ECS Transactions 111, no. 6 (2023): 1145–52. http://dx.doi.org/10.1149/11106.1145ecst.

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The reaction mechanism in an SOFC composite cathode was investigated by using patterned thin film model electrodes. In this work, we proposed new types of model electrodes, which could reproduce SOFCs cathodic reactions in a composite electrode of a mixed conducting electrode and an electrolyte. Then the model electrode was fabricated by choosing La0.6Sr0.4CoO3-δ (LSC) and Ce0.9Gd0.1O1.95 (GDC) as the electrode and the electrolyte, respectively. From the DC polarization measurements of the model electrode, it was found that making a composite of LSC and GDC can improve the cathodic performance
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Diao, Zhuo, Takaaki Imaizumi, Keita Mizuno, et al. "Investigation on Reaction Mechanism in an SOFC Composite Cathode by Using Patterned Thin Film Electrodes." ECS Meeting Abstracts MA2023-01, no. 54 (2023): 176. http://dx.doi.org/10.1149/ma2023-0154176mtgabs.

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Introduction For the further commercial use of solid oxide fuel cells (SOFCs), operating at intermediate temperatures is demanded. When reducing the operating temperature, the degradation of cathodic activity occupies the largest part of degradation of cell performance. Therefore, to improve the performance of SOFCs at intermediate temperature, the activity of cathodic reaction has to be improved. The cathodic reaction of SOFCs proceeds not only at triple phase boundaries (TPBs) of electrode, electrolyte and gas but also at double phase boundaries (DPBs) of electrode and gas, when a mixed ioni
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Gummow, R. A., S. Segall, and D. Fingas. "An Alternative View of the Cathodic Protection Mechanism on Buried Pipelines." Materials Performance 56, no. 3 (2017): 32–37. https://doi.org/10.5006/mp2017_56_3-32.

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The conventional understanding of the cathodic protection (CP) mechanism is illustrated in the definition of CP arising from the research of Mears and Brown in 1938. That is, CP is complete when the corrosion cell cathodes are polarized electronegatively to the open circuit potential of the most electronegative anode site on the structure. Typically the reduction reactions, which transfer CP current across the structure/electrolyte interfaces, produce hydroxyl ions and raise the pH at the interface. For steel, an increase in pH reduces the corrosion rate, depending on the degree of aeration of
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Amezawa, Koji, Katsuya Nishidate, Zhuo Diao, et al. "(Invited) Mechanism of Cathodic Reaction in Proton-Conducting Ceramic Fuel Cells Investigated By Patterned Model Electrodes." ECS Meeting Abstracts MA2022-02, no. 47 (2022): 1737. http://dx.doi.org/10.1149/ma2022-02471737mtgabs.

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Proton-conducting ceramic fuel cell (PCFCs) is one type of solid oxide fuel cell using a solid-state proton-conductor, typically BaZrO3-based and BaCeO3-based ceramics, as an electrolyte. PCFC is expected to operate at intermediate temperatures with high energy conversion efficiency. One of technological challenges for realization of PCFC is the development of high performace cathode. Cathodic reaction in PCFC is electrochemical reduction of oxygen gas foriming water vapor. Since protons, electrons, and oxygen gas molcules exist in the electrolyte, electrode and gas phase, respectively, the el
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Jin, Long, Rong Su, and Feng Gao. "Research on Evaluation of Corrosion Inhibitors for Oxygen Reducing Air Drive Gas Wells." International Journal of Energy 3, no. 2 (2023): 50–54. http://dx.doi.org/10.54097/ije.v3i2.012.

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Severe CO2 corrosion and O2 corrosion occurred during the extraction of a certain gas well. Six commonly used corrosion inhibitors for a certain gas well were evaluated through indoor weight loss tests. It was found that the corrosion inhibition effect of No. 1 corrosion inhibitor in CO2 and O2 environments was the best compared to the other five corrosion inhibitors. The corrosion inhibition efficiency can be divided into 96% and 93%, and the dosage is small, which meets the requirements of the target gas well corrosion inhibitor. The corrosion inhibition mechanisms of the six corrosion inhib
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Wolf, Marcus, and Anja Pfennig. "Influence of Hydrogen on the Failure Mechanism of Standard Duplex Stainless Steel X2CrNiMoN22-5-3 Exposed to Corrosion Fatigue." Key Engineering Materials 982 (July 3, 2024): 27–32. http://dx.doi.org/10.4028/p-qjf7bl.

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IIn a geothermal environment, cathodic protection is employed to improve resistance against corrosion fatigue. However, during the cathodic reactions under applied potential, hydrogen is generated and assimilated, leading to a reduced lifetime expectancy of high-alloyed steels. The corrosion fatigue mechanism of a standard duplex stainless steel X2CrNiMoN22-5-3 (1.4462) specimen loaded with hydrogen was studied in a corrosion chamber specifically designed for the purpose, surrounded by the electrolyte of the Northern German Basin at 369 K. The microstructural reactions resulting in hydrogen in
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Iwase, Sadanobu, Shinsuke Inagi, and Toshio Fuchigami. "Cathodic generation of reactive (phenylthio)difluoromethyl species and its reactions: mechanistic aspects and synthetic applications." Beilstein Journal of Organic Chemistry 18 (July 20, 2022): 872–80. http://dx.doi.org/10.3762/bjoc.18.88.

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The cathodic reduction of bromodifluoromethyl phenyl sulfide (1) using o-phthalonitrile as a mediator generated the (phenylthio)difluoromethyl radical, which reacted with α-methylstyrene and 1,1-diphenylethylene to provide the corresponding adducts in moderate and high yields, respectively. In contrast, chemical reduction of 1 with SmI2 resulted in much lower product yields. The detailed reaction mechanism was clarified based on the cathodic reduction of 1 in the presence of deuterated acetonitrile, CD3CN.
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Strebl, Michael P., Mark P. Bruns, and Sannakaisa Virtanen. "(Corrosion Division Morris Cohen Graduate Student Award) Respirometric Monitoring of Corrosion." ECS Meeting Abstracts MA2024-02, no. 15 (2024): 1641. https://doi.org/10.1149/ma2024-02151641mtgabs.

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Accurate measurement of the corrosion rate of metals and alloys under realistic exposure conditions is crucial for the elucidation of corrosion mechanisms, the development of new corrosion protection measures, and for reliable corrosion prediction. A respirometric approach to monitor corrosion rates based on quantifying the rates of the main cathodic reactions during corrosion is presented. With the proposed gravimetric, manometric, or flow cell experimental setups it is possible to follow the rates of the H2 evolution reaction (HER), the O2 reduction reaction (ORR), or both cathodic reactions
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Malapit, Christian. "Electrosynthesis for the Invention of New Organic Reactions." ECS Meeting Abstracts MA2024-02, no. 53 (2024): 3641. https://doi.org/10.1149/ma2024-02533641mtgabs.

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Electrosynthesis has emerged as a versatile and powerful tool in organic chemistry, facilitating the discovery and advancement of novel organic reactions. By harnessing electricity, this cutting-edge method generates reactive intermediates, driving chemical transformations to produce intricate organic compounds. This talk will present significant breakthroughs from our research group, showcasing the innovative use of electrochemistry in uncovering transformative reactions. Highlighted discoveries include (a) a site-selective arene C–H functionalization reaction, utilizing nitrogen radical inte
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Wang, Shao Qing, Fa Qin Xie, Xiao Fei Yao, and Xiang Qing Wu. "Mechanism of Cathodic Plasma Electrolytic Deposition on Ti6Al4V Alloy in Al(NO3)3 Ethanol-Aqueous Solution." Advanced Materials Research 1145 (March 2018): 54–58. http://dx.doi.org/10.4028/www.scientific.net/amr.1145.54.

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Barrier layer was prepared by Micro-arc oxidation(MAO) technique in silicate solution, and cathodic plasma electrolytic deposition (CPED) technique was used to fabricate Al2O3 ceramic coatings on Ti6Al4V alloy in Al(NO3)3(30g/L) and ethanol-aqueous solutions. Surface morphology and elemental of the coatings were investigated by scanning electron microscope (SEM) and energy disperse spectroscopy (EDS). Reaction phenomena were recorded and products of reactions were analyzed by infrared absorption spectrum KBr compression method. Furthermore, mechanisms of different electrolytes were evaluated.
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Dissertations / Theses on the topic "Mechanism of cathodic reactions"

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Ina, Toshiaki. "Study on Cathodic Reaction Mechanism of All Solid State Electrochemical Devices." Kyoto University, 2012. http://hdl.handle.net/2433/157658.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(人間・環境学)<br>甲第16947号<br>人博第590号<br>新制||人||141(附属図書館)<br>23||人博||590(吉田南総合図書館)<br>29622<br>京都大学大学院人間・環境学研究科相関環境学専攻<br>(主査)教授 内本 喜晴, 教授 杉山 雅人, 教授 田部 勢津久, 准教授 藤原 直樹, 准教授 雨澤 浩史<br>学位規則第4条第1項該当
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Williams, Robert Earl Jr. "Simulation and Characterization of Cathode Reactions in Solid Oxide Fuel Cells." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16309.

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In this study, we have developed a dense La0.85Sr0.15MnO3-δ (LSM) Ce0.9Gd0.1O1.95 (GDC) composite electrode system for studying the surface modification of cathodes. The LSM and GDC grains in the composite were well defined and distinguished using energy dispersive x-ray (EDX) analysis. The specific three-phase boundary (TPB) length per unit electrode surface area was systematically controlled by adjusting the LSM to GDC volume ratio of the composite from 40% up to 70%. The TPB length for each tested sample was determined through stereological techniques and used to correlate the cell perfor
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Phillips, Janice Paige. "Rearrangements of Radical Anions Generated from Cyclopropyl Ketones." Diss., Virginia Tech, 1998. http://hdl.handle.net/10919/40178.

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Cyclopropyl-containing substrates have been frequently utilized as "probes" for the detection of SET pathways in organic and biorganic systems. These reactions are based on the cyclorpropylcarbinyl - homoallyl rearrangement, which is fast and essentially irreversible. The implicit assumption in such studies is that if a "radical" species is produced, it will undergo ring opening. We have found that there are two important factors to consider in the design of SET probes: 1) ring strain, the thermodynamic driving force for the rearrangement, and 2) resonance energy, which may
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Herle, Jan van Van herle Jan Van herle Jan Van herle Jan. "Oxygen reduction reaction mechanisms at solid fuel cell cathodes /." [S.l.] : [s.n.], 1993. http://library.epfl.ch/theses/?nr=1187.

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Rattakham, Krittin. "Mechanism of Cathodic Prevention of Carbon Steel in Concrete." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6630.

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In this work, I aim to clarify the mechanism that allows steel to attain higher chloride threshold as it is cathodically polarized. Specifically, I seek to provide empirical information on whether an intrinsic (predominantly interfacial effects of polarization) or an extrinsic (predominantly concentration changes due to polarization) mechanism may be dominant in the beneficial effect of polarization. I carried out this experiment with 12 identical concrete specimens, each with a cast-in steel plate, constantly exposed them to high-chloride environment. The specimens were divided into 4 triplic
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Ishifune, Manabu. "Exploitation of New Synthetic Reactions by Means of Cathodic Reduction." Kyoto University, 1992. http://hdl.handle.net/2433/74620.

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Xiao, Yao. "Analysis for reaction mechanism of cathode materials for lithium-sulfur batteries." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263747.

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京都大学<br>新制・課程博士<br>博士(人間・環境学)<br>甲第23286号<br>人博第1001号<br>京都大学大学院人間・環境学研究科相関環境学専攻<br>(主査)教授 内本 喜晴, 教授 田部 勢津久, 教授 高木 紀明<br>学位規則第4条第1項該当<br>Doctor of Human and Environmental Studies<br>Kyoto University<br>DFAM
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Каракуркчі, Ганна Володимирівна. "Електрохімічне формування функціональних покриттів сплавами заліза з молібденом і вольфрамом". Thesis, НТУ "ХПІ", 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/21865.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.17.03 – технічна електрохімія. – Національний технічний університет “Харківський політехнічний інститут”, Харків, 2015 р. Дисертацію присвячено розробці технології електрохімічного формування функціональних покриттів сплавами заліза з молібденом і вольфрамом із цитратних електролітів для одержання матеріалів з високою корозійною стійкістю, фізико-механічними та трибологічними характеристиками. На підставі аналізу кінетичних закономірностей встановлено механізм електрохімічного одержання сплавів Fe-Mo і Fe-Mo-
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Yan, Xuecheng. "Carbon-based Porous Materials for Electrochemical Reactions." Thesis, Griffith University, 2016. http://hdl.handle.net/10072/366852.

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The exploration of highly active and durable cathodic oxygen reduction reaction (ORR) catalysts with economical production cost is still the bottleneck to realize the large-scale commercialization of some emerging technologies, such as fuel cells and metal-air batteries. At present, the composite that contains expensive platinum (Pt) particles dispersed on a porous carbon support (e.g., activated carbon (AC)) is the most efficient ORR catalyst. In a common sense, the AC itself normally shows very low activity for the ORR, so the Pt particles are vital. Imagine that if we remove all of the Pt
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Сачанова, Юлія Іванівна. "Електрохімічне формування покривів сплавами і композитами Fe–Co–Mo(MoOₓ)". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2020. http://repository.kpi.kharkov.ua/handle/KhPI-Press/43990.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.17.03 – Технічна електрохімія. – Національний технічний уні-верситет “Харківський політехнічний інститут”, Харків, 2019. Дисертаційну роботу присвячено розробці технології електроосадження функціональних покривів сплавами заліза з кобальтом і молібденом з комплек-сних цитратних електролітів. За результатами аналізу іонних рівноваг і кінетичних закономірностей встановлено, що молібден відновлюється у сплав з ферумом та кобальтом до металевого стану з гетероядерних комплексів через утворення проміжних сполук як
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Books on the topic "Mechanism of cathodic reactions"

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Ruff, F. Organic reactions: Equilibria, kinetics, and mechanism. Elsevier, 1994.

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Zaikov, G. E. Chemical and biochemical reactions: Kinetics and mechanism. Nova Science, 2011.

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L, Iordanskiĭ Lexei, ed. Advances in kinetics and mechanism of chemical reactions. Apple Academic Press, 2013.

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Wilkins, Ralph G. Kinetics and mechanism of reactions of transition metal complexes. 2nd ed. VCH, 1991.

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Wilkins, Ralph G. Kinetics and mechanism of reactions of transition metal complexes. 2nd ed. VCH, 1991.

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Wong, Dominic W. S. Mechanism and theory in food chemistry. Van Nostrand Reinhold, 1989.

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Gao, Ying. Investigations on the mechanism of the Belousov-Zhabotinsky oscillating reaction. Cuvillier Verlag, 1994.

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Chung, Ching Luan. A global approach for using kinematic redundancy to minimize base reactions of manipulators. Dept. of Mechanical Engineering, Robotics Institute, Carnegie Mellon University, 1989.

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NATO Advanced Study Institute on Olefin Metathesis and Polymerization Catalysts (1989 Akçay, Balıkesir İli, Turkey). Olefin metathesis and polymerization catalysts: Synthesis, mechanism, and utilization. Kluwer, 1990.

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S, Srinivasan, Texas A & M University., and United States. National Aeronautics and Space Administration., eds. Role of electronic, geometric, and surface properties on the mechanism of the electrochemical hydriding/dehydriding reactions. Texas A & M University, 1996.

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Book chapters on the topic "Mechanism of cathodic reactions"

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Krishtalik, L. I. "Mechanism of an Elementary Act and the Kinetics of the Cathodic Evolution of Hydrogen." In Charge Transfer Reactions in Electrochemical and Chemical Processes. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4684-8718-3_6.

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Kyriacou, Demetrios. "Cathodic Organic Reactions." In Modern Electroorganic Chemistry. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78677-8_3.

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Besenhard, J. O. "Cathodic Reduction of Graphite." In Inorganic Reactions and Methods. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145326.ch162.

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Li, Jie Jack. "ANRORC mechanism." In Name Reactions. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-05336-2_8.

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Li, Jie Jack. "ANRORC mechanism." In Name Reactions. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04835-1_7.

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Towl, A. D. C. "In the Cathodic Reduction of Polonium." In Inorganic Reactions and Methods. John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145159.ch110.

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Ghahremaninezhad, Ahmad, Edouard Asselin, and David G. Dixon. "Cathodic Reactions on Oxidized Chalcopyrite Electrode." In Electrometallurgy 2012. John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118371350.ch20.

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Li, Jie Jack. "Criegee mechanism of ozonolysis." In Name Reactions. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-05336-2_76.

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Li, Jie Jack. "Criegee mechanism of ozonolysis." In Name Reactions. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-03979-4_77.

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Li, Jie Jack. "Criegee mechanism of ozonolysis." In Name Reactions. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/978-3-662-04835-1_71.

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Conference papers on the topic "Mechanism of cathodic reactions"

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Mraied, Hesham, Gray Mullins, Alberto A. Sagüés, and Ivan Lasa. "Mechanism of Corrosion Mitigation of Post-Tensioned Tendons by Impregnation." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-13449.

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Abstract Grouting deficiencies of post-tensioned tendons (PTT) have been associated with accelerated corrosion of the strands. A corrosion mitigation method by which a fluid is introduced via the interstitial spaces between the wires of a tendon’s strand has been recently used with promising results. Mechanistic experiments and multiphysics modeling simulation were used to examine the relative importance of alternative corrosion mitigating mechanisms, including oxygen transport limitation, cathodic and anodic inhibition, and ohmic resistance increase. Experimental results yielded a favorable p
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Gummow, R. A., S. Segall, and D. Fingas. "An Alternative View of the Cathodic Protection Mechanism on Buried Pipelines." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07531.

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Abstract The conventional understanding of the cathodic protection mechanism is illustrated in the definition of cathodic protection arising from the research of Mears and Brown in 1938. That is, cathodic protection is complete when the corrosion cell cathodes are polarized electronegatively to the open circuit potential of the most electronegative anode site on the structure. Typically, the reduction reactions, that transfer cathodic protection current across the structure/electrolyte interfaces produce hydroxyl ions, raise the pH at the interface. For steel, an increase in pH reduces the cor
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Ohnaka, N., and Y. Furutani. "Electrochemical Investigation of Hydrogen Absorption Mechanism in Type 304 Stainless Steel under Simulated Crevice-Like Water Chemistry Conditions." In CORROSION 1987. NACE International, 1987. https://doi.org/10.5006/c1987-87261.

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Abstract An investigation of the permeation rate of electrolytic hydrogen through a Type 304 stainless steel membrane using an electrochemical technique is described. The variation of the permeation rate with cathodic overpotential has been determined under simulated crevice- like water chemistry condition, or in acidic (0.005 M H2SO4 + 0.05 M Na2SO4), neutral (0.05 M Na2SO4) and alkaline (0.01 N NaOH + 0.05 M Na2SO4) solutions with deaeration. The electrochemical relationships between electrochemical parameters like cathodic overpotential, cathodic current and permeation current, indicate tha
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Yepez, Omar, Nihal Obeyesekere, and Jonathan Wylde. "Development of Novel Phosphate Based Inhibitors Effective for Oxygen Corrosion. Part II: Electrochemical Characterization." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-06162.

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Abstract Corrosion inhibitors can behave as cathodic inhibitors when they mainly suppress the cathodic reaction. These can be anodic inhibitors when they mainly suppress the anodic reaction. When corrosion inhibitors interact with both cathodic and anodic reactions, they may behave as mixed inhibitors. This paper documents the electrochemical characterization of a phosphate ester based inhibitor which creates protection from oxygen corrosion. Potentiodynamic polarization is used to determine the inhibitor behavior during the anodic and cathodic processes of corrosion. A system of a carbon stee
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Kahyarian, Aria, Bruce Brown, and Srdjan Nesic. "Fundamental Mechanisms of Mild Steel Corrosion in H2S Containing Environments." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-12875.

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Abstract The current understanding of the corrosion mechanisms in H2S containing environments is based on the direct electrochemical reduction of H2S as the main contribution of this species to the corrosion process. Such an argument has been developed based on the distinctive behavior of cathodic polarization curves in H2S containing solutions, as compared to the behavior observed in the solutions of strong acids or those in presence of other weak acids such as carboxylic acids and carbonic acid. The direct reduction of H2S is generally associated with the observation of a “double wave” in a
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Castaneda, H., and B. N. Leis. "Hydrogen Entry Mechanism for API X-65 Steel Exposed in near Neutral Solutions under Adsorption-Activation Conditions." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07499.

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Abstract Hydrogen-related attack is a specific mechanism that can contribute to SCC (Stress Corrosion Cracking), through its influence on internal stress and the microstructure due to atomic hydrogen concentration diffused and accumulated during operation conditions due to the formation of atomic hydrogen in presence and absence of polarization conditions (cathodic protection). In this work, an API X-65 grade steel pipeline is exposed to NS4 synthetic groundwater solution in hydrogen permeation cell type experiments in order to follow the hydrogen reaction in the cathodic compartment and to ch
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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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Moradighadi, Negar, Yoon-Seok Choi, and Srdjan Nesic. "Mechanistic Modeling of the Impedance Response of Cathodic Reduction of Hydrogen Ion in Strong Acidic Environments." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17900.

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Abstract Studying the mechanism of electrochemical reactions benefits from implementation of steady state and transient techniques such as electrochemical impedance spectroscopy (EIS). To develop an understanding of experimental results and how they relate to corrosion mechanisms requires their comparison with a mechanistic model. In this study, a physico-chemical model was used to simulate both the steady state potentiodynamic sweep, and the EIS response of cathodic reduction of H+ in an acidic environment. The modeled steady state potentiodynamic sweep, Nyquist plot and Bode plot were valida
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Abdar, Payman Sharifi, Bruce Brown, and Srdjan Nesic. "Electrochemical Investigation and Modeling of Cathodic Reactions on Iron Sulfides in Acidic Solutions." In CONFERENCE 2023. AMPP, 2023. https://doi.org/10.5006/c2023-19428.

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Abstract With an increasing number of sour oil and gas fields in the world, mitigation of production related failures due to H2S corrosion is a key challenge. In H2S environments, the corrosion product layer could include different types of iron sulfides with various electrical and physiochemical properties. One of the main characteristics of iron sulfides is their semiconductive nature which could enhance the galvanic coupling between steel and this type of corrosion product layer. On that account, galvanic coupling between steel and iron sulfides is considered as the main culprit related to
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Gray, Linda G. S., Bruce G. Anderson, Michael J. Danysh, and Peter R. Tremaine. "Effect of PH and Temperature on the Mechanism of Carbon Steel Corrosion by Aqueous Carbon Dioxide." In CORROSION 1990. NACE International, 1990. https://doi.org/10.5006/c1990-90040.

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Abstract Electrochemical polarization measurements were used to identify the mechanisms for the active dissolution of carbon steel by aqueous CO2 as a function of pH and temperature. Changes in the cathodic reaction mechanism with pH at 25°C were related directly to changes in CO2 speciation. At pH 2 through 4 the active dissolution of carbon steel was enhanced significantly by chemically-controlled reduction of H2CO3°(aq). At pH 6 through 10, steel dissolution was enhanced by charge-transfer-controlled reduction of HCO3-. In the presence of CO2 at pH 4, the corrosion rate increased rapidly as
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Reports on the topic "Mechanism of cathodic reactions"

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Wilmont, Martyn, Greg Van Boven, and Tom Jack. GRI-96-0452_1 Stress Corrosion Cracking Under Field Simulated Conditions I. Pipeline Research Council International, Inc. (PRCI), 1997. http://dx.doi.org/10.55274/r0011963.

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Electrochemical measurements have been performed on polished and mill scaled steel samples. The solutions investigated have included carbonate bicarbonate mixtures of varying pH as well as solutions of neutral pH such as NS4. Results indicate that the mechanism of corrosion associated with the carbonate bicarbonate environments involves passive film formation. No such passivation is observed for solutions associated with neutral pH SCC. Electrochemical corrosion rates measured on polished steel specimens exposed to NS4 solutions in the pH range 5 to 6.8 were in the region of 5 x 10e-1 to 1 x 1
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Wels, B. R. Electrocatalysis of anodic and cathodic oxygen-transfer reactions. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/6764798.

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Najm, Habib N., and Judit Zador. Automated exploration of the mechanism of elementary reactions. Office of Scientific and Technical Information (OSTI), 2012. http://dx.doi.org/10.2172/1113869.

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Thompson and Lawson. L51959 Cathodic Protection Requirements for Mitigation Corrosion on Buried Pipelines. Pipeline Research Council International, Inc. (PRCI), 2002. http://dx.doi.org/10.55274/r0011277.

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As pipelines age, the need for predictive capability and comprehensive models for cathodic protection and corrosion mitigation is becoming significantly more critical. It is imperative that such models be developed to insure future pipeline integrity and risk management that is both economically feasible and utilizes best-practice engineering. Present cathodic protection (CP) models are based on a simplified mechanism of cathodic protection that does not explain certain basic field observations for operating underground pipelines. In addition, the lack of a comprehensive mechanism for cathodic
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Thompson. L52114 Efficient use of Cathodic Polarization Criteria. Pipeline Research Council International, Inc. (PRCI), 2005. http://dx.doi.org/10.55274/r0011101.

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A series of long term polarization tests were performed to investigate efficient use of the 100mV polarization growth/decay for demonstrating CP effectiveness. Several conclusions were drawn. Absolute time limits for measuring polarization growth or decay could not be justified. Simple extrapolation of polarization growth or decay curves also could not be justified; future extrapolation needs to be mechanistically based. The application of CP can change the local environment at a steel surface including creating passivity. Redox reactions in soils complicate analysis of polarization data. For
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Lunsford, J. H. A study of catalysts and mechanism in synthesis reactions. Office of Scientific and Technical Information (OSTI), 1991. http://dx.doi.org/10.2172/5053509.

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Nix, J. R., and A. J. Sierk. Mechanism of nuclear dissipation in fission and heavy-ion reactions. Office of Scientific and Technical Information (OSTI), 1986. http://dx.doi.org/10.2172/5199660.

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Mignerey, A. C. [Reaction mechanism studies of heavy ion induced nuclear reactions]. Annual progress report, [January 1992--February 1993]. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/10135206.

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Dutta, D., D. Abbott, and T. A. Amatuni. Proton propagation through nuclei and the quasi-free reaction mechanism studied with (e,e{prime}p) reactions. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/554895.

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Mignerey, A. C. [Reaction mechanism studies of heavy ion induced nuclear reactions]. [Dept. of Chemistry and Biochemistry, Univ. of Maryland, College Park, Maryland]. Office of Scientific and Technical Information (OSTI), 1993. http://dx.doi.org/10.2172/6610765.

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