Academic literature on the topic 'Cathodic reaction mechanism'

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Journal articles on the topic "Cathodic reaction mechanism"

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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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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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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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Li, Xia, Sixu Deng, and Xueliang Andy Sun. "(Digital Presentation) Understanding the Chemistry and Microstructure Evolution of Cathodic Interface in All-Solid-State Batteries." ECS Meeting Abstracts MA2022-01, no. 2 (2022): 236. http://dx.doi.org/10.1149/ma2022-012236mtgabs.

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All-solid-state lithium-ion batteries (SSLIBs) are promising candidates to meet the requirement of electric vehicles due to the intrinsic safety characteristics and high theoretical energy density. A stable cathodic interface is critical for maximizing the performance of SSLIBs. In our study, operando X-ray absorption near-edge spectroscopy (XANES) combined with transmission electron microscopy (TEM) and electron energy loss spectroscopy (EELS) is employed to investigate the interfacial behavior between the Li-ion cathodes and sulfide solid-state electrolyte. Constructing a uniform interlayer
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Sunarya, Yayan. "3-Mercaptopropionic Acid as Corrosion Inhibitor for Carbon Steel in CO2 Aerated 1% NaCl Solution with Buffer Control-pH." Molekul 13, no. 2 (2018): 98. http://dx.doi.org/10.20884/1.jm.2018.13.2.340.

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In this research, 3-Mercaptopropionic acid (MPA) as corrosion inhibitor of carbon steel in CO2 aerated 1% NaCl solution with buffer pH adjustment has been studied by means of electrochemical impedance (EIS) and polarization (Tafel plot). MPA was found to be an effective carbon steel inhibitor. Percentage inhibition efficiency (IE %) calculated by both Tafel plot and EIS, ranged from 85% to 90%. MPA was found to affect the cathodic processes and act as cathodic-type inhibitors. Mechanism of inhibit corrosion by adsorption mechanism leads to the formation of a protective chemisorbed film on the
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ENDO, A. "Cathodic reaction mechanism for dense Sr-doped lanthanum manganite electrodes." Solid State Ionics 86-88 (July 1996): 1191–95. http://dx.doi.org/10.1016/0167-2738(96)00286-x.

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Ju, Hong, and Yan Li. "Coulostatic-Based Research on Corrosion Inhibition Mechanism of Three Inhibitors for Hot Dipped Coating Steels." Applied Mechanics and Materials 229-231 (November 2012): 87–90. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.87.

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The corrosion inhibition mechanism of three inhibitors for hot dipped coating steels in HCl acid was studied by coulostatic method. The results showed that the anodic Tafel slope ba and cathodic Tafel slope bc significantly increased with increasing of corrosion inhibitor concentration. While the corrosion current density Icorr decreases with the corrosion inhibition concentration increasing. And the inhibition efficiency increased with the inhibitor concentration. The inhibiting action of these compounds were attributed to blocking of the electrode surface by adsorption through its active cen
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Kuzminykh, Maria M., Victoria V. Panteleeva, and Anatoliy B. Shein. "CATHODIC HYDROGEN EVOLUTION ON IRON DISILICIDE. I. ALKALINE SOLUTION." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, no. 1 (2018): 38–45. http://dx.doi.org/10.6060/ivkkt.20196201.5745.

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The kinetics of hydrogen evolution reaction on FeSi2-electrode in 1.0 M NaOH solution has been studied using methods of polarization and impedance measurements. With the help of diagnostic criteria for the hydrogen evolution reaction mechanisms based on the analysis of the dependence of the parameters of the equivalent electric circuit on overvoltage, it was established that the reaction of hydrogen evolution on iron disilicide in the alkaline electrolyte proceeds along the discharge - electrochemical desorption route, where desorption is the rate-determining stage. Both stages are irreversibl
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Tada, Eiji, Akiyoshi Saito, Takumi Kosaba, and Azusa Ooi. "Hydrogen Evolution Reaction Mechanism of Steel in Aqueous Solution Containing Thiocyanate Ions." ECS Meeting Abstracts MA2025-01, no. 20 (2025): 1360. https://doi.org/10.1149/ma2025-01201360mtgabs.

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The purpose of this study is to elucidate the effect of thiocyanate ions on the hydrogen evolution reaction on steel using electrochemical measurements. The material used in this study was cold-rolled steel sheet. The steel plate surface was polished with SiC waterproof abrasive paper up to JIS#2000 grit and then with diamond paste to 1 um. The steel surface was then ultrasonically cleaned with acetone and ultrapure water before being used for the experiments. Buffer solutions containing ammonium thiocyanate (NH4SCN) at different pH were used as test solutions. Electrochemical measurements wer
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Ambrosioni, Brice, Anthony Barthelemy, Dorin Bejan, and Nigel J. Bunce. "Electrochemical reduction of aqueous nitrate ion at tin cathodes." Canadian Journal of Chemistry 92, no. 3 (2014): 228–33. http://dx.doi.org/10.1139/cjc-2013-0406.

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The remediation of nitrate-contaminated water using electrochemical reduction at a tin cathode has previously been shown to give almost quantitative denitrification (removal of dissolved nitrogen species) under highly cathodic polarization. A particular focus of this project was to identify specific role(s) for tin in the reaction in the context of the previous literature. The current efficiency for denitrification was enhanced in alkaline solution, and the reaction was accelerated by the presence of small concentrations of Sn(II) salts, which are in a dynamic exchange between cathodic deposit
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Dissertations / Theses on the topic "Cathodic reaction mechanism"

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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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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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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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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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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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Сачанова, Юлія Іванівна. "Електрохімічне формування покривів сплавами і композитами Fe–Co–Mo(MoOₓ)". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/43993.

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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, 2019. Дисертаційну роботу присвячено розробці гальванохімічної технології покривів тернарними сплавами і композитами системи ферум-кобальт-молібден з підвищеним рівнем функціональних властивостей на підставі гіпотези про інкорпорацію оксидів тугоплавких компонентів як інтермедіатів електродних реакцій, до складу металевої матриці. Обґрунтовано компонентний склад електроліту та співвідношення конц
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Tuerxun, Feilure. "Elucidation of reaction mechanism at the anode/electrolyte interface and cathode material for rechargeable magnesium battery." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263749.

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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23288号<br>人博第1003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 高木 紀明, 教授 中村 敏浩<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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Komatsu, Hideyuki. "Elucidation of Reaction Mechanism for High Energy Cathode Materials in Lithium Ion Battery using Advanced Analysis Technologies." Kyoto University, 2019. http://hdl.handle.net/2433/242753.

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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21876号<br>人博第905号<br>新制||人||216(附属図書館)<br>2018||人博||905(吉田南総合図書館)<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 吉田 鉄平<br>学位規則第4条第1項該当
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Fu, Qiang [Verfasser], and H. [Akademischer Betreuer] Ehrenberg. "Reaction mechanism study of vanadium pentoxide as cathode material for beyond-Li energy storage via in operando techniques / Qiang Fu ; Betreuer: H. Ehrenberg." Karlsruhe : KIT-Bibliothek, 2019. http://d-nb.info/1189212447/34.

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Book chapters on the topic "Cathodic reaction mechanism"

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Yamada, Atsuo. "Olivine Phosphate Cathode Materials, Reactivity and Reaction Mechanisms." In Batteries for Sustainability. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5791-6_14.

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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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Yamada, Atsuo. "Olivine Olivine Phosphate Cathode Materials olivine phosphate cathode materials , Reactivity and Reaction Mechanisms." In Encyclopedia of Sustainability Science and Technology. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_499.

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Yamamoto, Kentaro. "Analysis for Reaction Layer Growth Mechanism at Cathode/Solid Electrolyte Interface via Operando X-Ray Reflectometry." In The Materials Research Society Series. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-6039-8_16.

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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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Tao, Shaohu, Jianping Peng, Yuezhong Di, Kejia Liu, Kun Zhao, and Naixiang Feng. "Electrochemical Study of Potassium Fluoride in a Cryolite-Aluminum Oxide Molten Salt." In Encyclopedia of Aluminum and Its Alloys. CRC Press, 2019. http://dx.doi.org/10.1201/9781351045636-140000409.

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Selective and efficient electrochemical methods to characterize aluminum are necessary. Current methods are based on potentiodynamic polarization, recurrent potential double pulses, chronopotentiometry, open-circuit chronopotentiometry, and potentiostatic electrolysis, but have not been used to characterize the deposition of aluminum in Na3AlF6-Al2O3-KF molten salts. The control processes of the formation of aluminum-tungsten inter-metallic compounds, and the deposition of aluminum have been investigated by using steady-state potentiodynamic cathodic polarization curves. The dissolution loss r
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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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Bouiti, Khalid, Najoua Labjar, Mohammed Benmessaoud, et al. "Materials Used to Protect Metals Against Corrosion in the Electric Car Industry." In Advances in Chemical and Materials Engineering. IGI Global, 2024. https://doi.org/10.4018/979-8-3373-0669-8.ch005.

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In the electric car industry, corrosion poses a significant threat to metal components, leading to material degradation, loss of structural integrity, and reduced performance. Corrosion occurs through chemical, electrochemical, and physical reactions, affecting metals like iron, platinum, and others. Various forms of corrosion—such as uniform, galvanic, and pitting corrosion—can occur depending on environmental conditions. To mitigate corrosion in electric vehicles, protective materials are used, including coatings, anodic and cathodic protection, and environmental controls. These methods help
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Deseure, Jonathan, and Jérôme Aicart. "Solid Oxide Steam Electrolyzer: Gas Diffusion Steers the Design of Electrodes." In Electrodialysis. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.90352.

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The hydrogen production by SOECs coupled with renewable energy sources is a promising route for the sustainability hydrogen economy. Multiphysics computing simulations appear to be the most efficient approaches to analyze the coupled mechanisms of SOEC operation. Using a relevant model, it is possible to predict the electrical behavior of solid oxide electrodes considering the current collector design. The influences of diffusion and grain diameter on cell performances can be investigated through 2D simulations, current–voltage characteristics, and current source distribution through electrode
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Yan, Xiang-Hui, and Hao Xu. "Synthesis Strategies, Characterizations, and Catalytic Mechanism of Fe–N–C Electrocatalysts for Cathodic Oxygen Reduction Reactions in Fuel Cell." In Noble-Metal-Free Electrocatalysts for Hydrogen Energy. WORLD SCIENTIFIC (EUROPE), 2022. http://dx.doi.org/10.1142/9781800611573_0012.

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Conference papers on the topic "Cathodic reaction mechanism"

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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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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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Cubicciotti, Daniel, and George J. Licina. "Electrochemical Aspects of MIC." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89517.

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Abstract Mechanisms given in the literature for microbial-induced corrosion (MIC) generally address the processes by which microbial action promotes corrosion by acceleration of the anodic half reaction. However, catalysis of the cathodic half reaction (oxygen reduction) by microbial action has recently been shown to occur in aerated environments. Catalysis of the cathodic reaction causes the corrosion potential of passive stainless steel to increase (become more positive). This paper discusses how pitting of stainless steels at welds can result from the increase in corrosion potential and sug
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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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Tran, Thu, Bruce Brown, Srdjan Nesic, and Bernard Tribollet. "Investigation of the Mechanism for Acetic Acid Corrosion of Mild Steel." In CORROSION 2013. NACE International, 2013. https://doi.org/10.5006/c2013-02487.

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Abstract Acetic acid is recognized as an important factor in mild steel corrosion. Like carbonic acid, acetic acid is a weak acid, which partially dissociates as a function of pH and the solution temperature. Stronger than carbonic acid (pKa 4.76 vs. 6.35 at 25°C), acetic acid is the main source of hydrogen ions when the concentration of each acid is the same. According to many studies, acetic acid enhances the corrosion rate of mild steel by accelerating the cathodic reaction. The mechanism of acetic acid reduction at the metal surface is still being debated. When the reduction of the adsorbe
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Yépez, Omar, Nihal Obeyesekere, and Jonathan Wylde. "Study of Sour Corrosion Mechanism under Controlled pH." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07795.

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Abstract In order to control and predict the influence of hydrogen sulfide on carbon steel corrosion, it is of a paramount importance to understand its corrosion mechanism. What is the mechanism and kinetics of formation and growth of a FeS layer? Highlight as a very important issue because of the different electrochemical roles that these corrosion products can accomplish. One of these roles is to assist the hydrogen evolution reaction, where the iron sulfide corrosion product will act as a cathode. However, another role could be its direct action as a cathodic fuel. In this paper, it was fou
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Tran, Thu, Bruce Brown, and Srdjan Nesic. "Corrosion of Mild Steel in an Aqueous CO2 Environment – Basic Electrochemical Mechanisms Revisited." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05671.

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Abstract CO2 corrosion has been recognized as a major problem in internal pipeline corrosion. In the presence of water, CO2 forms carbonic acid, a weak acid which partially dissociates as a function of pH and the solution temperature. According to many studies, the presence of CO2 and therefore, carbonic acid enhances the corrosion rate of mild steel by accelerating the cathodic reaction. The exact mechanism of carbonic acid reduction at the metal surface is still being debated. When the reduction of the adsorbed carbonic acid molecule occurs at the metal surface, the mechanism is called “dire
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Payer, J. H., B. Trautman, and D. Gervasio. "Chemical and Electrochemical Processes of Cathodic Disbonding of Pipeline Coatings." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93579.

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Abstract The chemical and electrochemical processes that result in cathodic disbonding of pipeline coatings are discussed. A laboratory program to increase the understanding of the mechanism of cathodic disbonding is described, and results are presented. A thrust of the work is to determine the role of reaction products from cathodic polarization on the disbonding process.
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9

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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10

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 "Cathodic reaction mechanism"

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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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