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Dissertations / Theses on the topic 'Cathode and anode coating'

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Published: 7 June 2025

Last updated: 2 August 2025

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1

CASTELLI, FILIPPO. "Foul-control paints behavior near anodes of Impressed Current Cathodic Protection systems." Doctoral thesis, Università degli studi di Genova, 2023. https://hdl.handle.net/11567/1104637.

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It is known by foul control paint and Impressed Current Cathodic Protection system producers that paints can fail in proximity of the anodes. This failure is well known in industrial field, but does not represent a structural problem. As a matter of fact, paint recovery is performed within routinary docking operations. Within this framework, it is interesting to evaluate the behavior of new generation biocide-free foul control paints under a chemical stress resembling that near ICCP anodes, where seawater turns acidic and chlorinated. Data in this area have not been already studied nor publish

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2

Reeves, Nik. "Novel cathode and anode materials for rechargeable lithium-ion batteries." Thesis, University of Sheffield, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398590.

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3

Cé, Nataly Araújo. "Measuring the effect of cathodic protection on the performance of thermally sprayed aluminium coatings at elevated temperature." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/173316.

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Alumínio Pulverizado Termicamente (TSA) é amplamente utilizado em instalações offshore como revestimento de ânodo de sacrifício em tubulações de aço carbono. O transporte e a instalação desses componentes podem levar a pequenos danos no revestimento, o que pode expor a superfície do aço à água do mar. Sabe-se que o depósito calcário é formado na superfície do aço polarizado catodicamente. Assim, esta pesquisa avaliou o TSA aplicado por sistema de pulverização de arco duplo (TWAS) no aço ao carbono S355J2 + N quando ocorrem danos (holidays) para estudar a formação de depósitos calcários no aço

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4

Fisher, James C. II. "A Novel Fuel Cell Anode Catalyst, Perovskite LSCF: Compared in a Fuel Cell Anode and Tubular Reactor." University of Akron / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=akron1152215855.

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5

Teel, George Lewis. "Development and Characterization of the Heated-Anode Cathode Arc Thruster (HA-CAT)." Thesis, The George Washington University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1556214.

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<p> A modern approach to satellite based experimentation has evolved from large, multi-instrumented satellites, to cheaper, smaller, almost disposable yet still reliable small spacecrafts. These small satellites are either sent to the International Space Station (ISS) to be dropped out into low earth orbit (LEO), or dropped off as a secondary payload into various orbits. While it is cheap to have small spacecraft accomplishing these missions, the lifetime expectancy is very short. Currently there are no commercialized propulsion systems that exist to keep them flying for prolonged periods of t

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6

Meireles, Natalia. "Separation of anode from cathode material from End of Life Li-ion batteries (LIBs)." Thesis, Luleå tekniska universitet, Mineralteknik och metallurgi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-81356.

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With the increasing usage of electronics powered by lithium ion batteries, it is more and more importantto improve the recycling process. The current study is focused on reducing graphite content of disposedlithium batteries to aid the further treatment of the batteries. In larger picture, an increase of efficiencyleads to a less cost and less loss of material in recycling process. The approach used is to reduce graphitecontent by the agglomerated flotation, using the natural hydrophobicity of graphite. This approach candecrease the percentage of this mineral in the further recycling process o

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7

Banjade, Dila Ram. "Galvanic Corrosion of Magnesium Coupled to Steel at High Cathode-to-Anode Area Ratios." BYU ScholarsArchive, 2015. https://scholarsarchive.byu.edu/etd/5623.

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In this study, the impact of galvanic coupling of magnesium to steel on the corrosion rate, surface morphology, and surface film formation was investigated. In particular, the role of self-corrosion was quantified as previous studies showed discrepancies between model predictions and experimental results that were likely due to significant self-corrosion. This experimental study examined the corrosion of Mg coupled to steel in 5 wt% NaCl at cathode-to-anode area ratios that ranged from 5 to 27. Results showed that self-corrosion was significant and accounted for, on average, one-third of total

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8

Choi, Hyunkyu. "Perovskite-type oxide material as electro-catalysts for solid oxide fuel cells." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1354652812.

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9

Jia, Jingshu. "Fabrication of high quality one material anode and cathode for water electrolysis in alkaline solution /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?EVNG%202008%20JIA.

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10

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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11

Ezzedine, Mariam. "Fabrication of hierarchical hybrid nanostructured electrodes based on nanoparticles decorated carbon nanotubes for Li-Ion batteries." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLX105/document.

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Cette thèse est consacrée à la fabrication ascendante (bottom-up) de matériaux nanostructurés hybrides hiérarchisés à base de nanotubes de carbone alignés verticalement (VACNTs) décorés par des nanoparticules (NPs). En fonction de leur utilisation comme cathode ou anode, des nanoparticules de soufre (S) ou silicium (Si) ont été déposées. En raison de leur structure unique et de leurs propriétés électroniques, les VACNTs agissent comme une matrice de support et un excellent collecteur de courant, améliorant ainsi les voies de transport électroniques et ioniques. La nanostructuration et le conta

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12

Akanda, Sajedur R. "Mechanical Characterization of Coating-Interconnect Interfaces and Anode-Electrolyte Interfaces for Solid Oxide Fuel Cells." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1356969023.

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13

Jähnert, Thomas [Verfasser], Ulrich Sigmar [Gutachter] Schubert, and Andrea [Gutachter] Balducci. "New anode- and cathode-active materials for organic batteries / Thomas Jähnert ; Gutachter: Ulrich Sigmar Schubert, Andrea Balducci." Jena : Friedrich-Schiller-Universität Jena, 2018. http://d-nb.info/1170397492/34.

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14

Gavrilov, N. V., and A. S. Mamaev. "DLC deposition by PECVD at plasma cathode based low-pressure discharge." Thesis, Видавництво СумДУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/20765.

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The characteristics of coatings prepared by acetylene decomposition in nonself-sustained discharge with a plasma cathode have been studied. The initial energy of electrons injected into the plasma was 0,1 – 0,7 keV, energy of ions bombarding the coating was 0,1 – 0,7 keV and the pressure of Ar + C2H2 gas mixture was 0,2 – 1 Pa. Microhardness and wear resistance of coatings were measured by methods of kinetic indentation and ball abrasion. The coatings with high microhardness (40 – 60 GPa) and high wear resistance were deposited on conditions that ion energy exceeded 300 eV. It was shown tha

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15

König, Nikolaj, and Johan Norlin. "Quality Improvements for Anode Coating in Lithium-Ion Battery Cell Manufacturing : A Case Study at Northvolt Labs." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik, konst och samhälle, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85997.

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Lithium-ion batteries (LIB) represent a promising energy storage solution in the pursuit of electrification to combat climate change. In order for LIBs to be used across different industries, they have to be commercially viable. The viability for manufacturing LIBs at scale is increasing, with manufacturing costs decreasing 89% in the last ten years. However, the LIB manufacturing process is complex and can generate large amounts of scrap due to various non-conformities (NCs). Therefore, to further increase the ability to manufacture high-quality LIBs at scale, it is crucial to minimize the oc

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16

Barhdadi, Rachid. "Electrosyntheses utilisant des bases electrogenerees a partir d'halogenures aromatiques. Interet de l'application des techniques anode consommable et cathode modifiee." Paris 6, 1992. http://www.theses.fr/1992PA066403.

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La reduction electrochimique d'un halogenure aromatique (ex phbr) fournit une base electrogeneree puissante (ex beg=ph#) capable de deprotoner des composes a h mobile tels un nitrile, un ester, une cetone, un haloforme. L'anion ainsi obtenu se couple avec un reactif electrophile tel un derive halogene, un ester un derive carbonyle, un carbonate. De nombreux exemples de syntheses de liaisons carbone-carbone ont ete mis au point par ce procede. L'interet de l'utilisation d'une cellule non divisee, equipee d'une anode consommable (ex mg) et d'une cathode modifiee par depot electrolytique d'un met

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17

Yao, Xiahui. "The Material Design of Stable Cathodes in Li-Oxygen Batteries and Beyond." Thesis, Boston College, 2017. http://hdl.handle.net/2345/bc-ir:107563.

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Thesis advisor: Dunwei Wang<br>Non-aqueous Li-O2 batteries promise the highest theoretical specific energy among all rechargeable batteries. It is the only candidate that can be comparable with the internal combustion engine in terms of gravimetric energy density. This makes Li-O2 batteries preferable in the application of electric vehicles or drones. However, the materialization of this technology has been hindered by the poor cycling performance. The major reason for the degradation of the battery at the current research stage has been identified as the decomposition of the electrolyte and t

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18

Martens, Arthur [Verfasser], and Ingo [Akademischer Betreuer] Krossing. "Applied and fundamental aspects of alanes: synthesis of weakly coordinating anions and coating of NCM cathode materials." Freiburg : Universität, 2018. http://d-nb.info/1201272637/34.

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19

Hyde, Robert H. "Hollow-electrode pulsed plasma deposition of titanium and carbon thin films." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001856.

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20

Anitha, Sukkurji Parvathy [Verfasser], and W. G. [Akademischer Betreuer] Bessler. "Advanced Anode and Cathode Materials for Li-ion Batteries: Application to Printing Methodology / Parvathy Anitha Sukkurji ; Betreuer: W. G. Bessler." Karlsruhe : KIT-Bibliothek, 2021. http://d-nb.info/1241189269/34.

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21

Wang, Xiaoxin. "PROCESSING AND CHARACTERIZATION OF TiB ₂ -COLLOIDAL ALUMINA COATING ON CARBON CATHODE IN HALL-HEROULT CELL." University of Cincinnati / OhioLINK, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=ucin971978030.

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22

Shen, Fengyu. "Study of Perovskite Structure Cathode Materials and Protective Coatings on Interconnect for Solid Oxide Fuel Cells." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/74973.

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Solid oxide fuel cells (SOFCs) are promising devices to convert chemical energy to electrical energy due to their high efficiency, fuel flexibility, and low emissions. However, there are still some drawbacks hindering its wide application, such as high operative temperature, electrode degradation, chromium poisoning, oxidization of interconnect, and so on. Cathode plays a major role in determining the electrochemical performance of a single cell. In this dissertation, three perovskite cathode materials, La0.6Sr0.4Co0.2Fe0.8O3 (LSCF), Ba0.5Sr0.5Co0.2Fe0.8O3 (BSCF), and Sm0.5Sr0.5Co0.2Fe0.8O3

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23

FATHI, REZA. "Investigation of Alkaline Ion Rocking Chair Batteries." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2015. http://hdl.handle.net/10281/77623.

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The work was devoted to the improvement of rechargeable batteries. Two different strategies were applied: i) investigation of new electrode materials to increase the battery performance, and ii) studies on failure mechanism of commercial rechargeable batteries. Both Li-ion and Na-ion systems were explored. In the former case, carbon based materials were investigated as high capacity anode (chapter 2), while the cell failure of commercial cells (chapter 3) and pouch cells (chapter 4) were investigated by Ultra High Precision Coulometry (UHPC) and dQ/dV analysis. Moreover, Na-ion systems, a low

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24

Sobkowiak, Adam. "LiFeSO4F as a Cathode Material for Lithium-Ion Batteries : Synthesis, Structure, and Function." Doctoral thesis, Uppsala universitet, Institutionen för kemi - Ångström, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-262715.

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In this thesis, two recently discovered polymorphs of LiFeSO4F, adopting a tavorite- and triplite-type structure, were investigated as potential candidates for use as cathode materials in Li-ion batteries. The studies aimed at enriching the fundamental understanding of the synthetic preparations, structural properties, and electrochemical functionality of these materials. By in situ synchrotron X-ray diffraction (XRD), the formation mechanism of the tavorite-type LiFeSO4F was followed starting from two different sets of precursors, FeSO4∙H2O + LiF, and Li2SO4 + FeF2. The results indicated that

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25

Li, Xiaxi. "In situ characterization of electrochemical processes of solid oxide fuel cells." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/54256.

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Solid oxide fuel cells (SOFCs) represent a next generation energy source with high energy conversion efficiency, low pollutant emission, good flexibility with a wide variety of fuels, and excellent modularity suitable for distributed power generation. As an electrochemical energy conversion device, SOFC’s performance and reliability depend sensitively on the catalytic activity and stability of the electrode materials. To date, however, the development of electrode materials and microstructures is still based largely on trial-and-error methods because of inadequate understanding of the mechanis

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26

Lapp, Steffen. "Characterisation and optimisation of a hollow-cathode plasma-enhanced chemical vapour deposition process for diamond-like carbon interior pipe coating." Thesis, University of the West of Scotland, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.731774.

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27

Randström, Sara. "Characterisation of materials for use in the molten carbonate fuel cell." Licentiate thesis, KTH, Chemical Engineering and Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3925.

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<p>Fuel cells are promising candidates for converting chemical energy into electrical energy. The Molten Carbonate Fuel Cell (MCFC) is a high temperature fuel cell that produces electrical energy from a variety of fuels containing hydrogen, hydrocarbons and carbon monoxide. Since the waste heat has a high temperature it can also be used leading to a high overall efficiency.</p><p>Material degradation and the cost of the components are the problems for the commercialisation of MCFC. Although there are companies around the world starting to commercialise MCFC some further cost reduction is neede

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Zhang, Tianzi. "The possibility of using BOD on-line measurement." Thesis, KTH, VA-teknik, Vatten, Avlopp och Avfall, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-99358.

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BOD (Biochemical Oxygen Demand) is one of the important parameters in wastewater treatment technology, it normally takes five days to get the result. Using MFC (Microbial Fuel Cell) to build up a small on-line system to measure BOD will reduce to operating time to 20 minutes. In this report, the MFC BOD on-line measurement was processed in order to test if this rapid way would work in practical usage. The experiment used secondary sedimentation sludge as the bacteria source on the MFC anode pattern with GGA (Glucose and Glutamic Acid solution) as an electron producer, and the 30 minutes volta

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29

ZHANG, HAO. "ELECTROCHEMICAL DEGRADATION OF 4-CHLOROPHENOL." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1154119633.

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30

Hladiš, Lukáš. "Nízkoteplotní palivový článek pro ultralehký letoun." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230892.

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This thesis deals with the concept of propulsion for ultralight plane with using fuel cells technology. Here are described the individual kinds of fuel cells and possible fuel. Furthermore it is listed the calculation of low-temperature fuel cell H2 - O2 with polymeric membrane (PEM). The thesis includes also a part with the design drawings of the proposed solutions.

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31

天, 張., and Tian Zhang. "Development of amorphous RuO2-Ta2O5/Ti anode for oxygen evolution in electrowinning." Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB12928872/?lang=0, 2015. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB12928872/?lang=0.

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The decrease in thermal decomposition temperature led to the amorphization of RuO2, and nano RuO2 particles were uniformly dispersed in amorphous Ta2O5 matrix. Such nano particles induced the increase in effective surface area for oxygen evolution and change in rate determining step, resulting in a significant decrease in oxygen overpotential. This excellent achievement induced a significant decrease in cell voltage of 0.7 V compared to lead alloy anodes and a voltage reduction of 37 % was achieved for copper electrowinning. Another distinct feature of the amorphous anodes is that nano RuO2 pa

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32

Sun, Linhao. "Synthèse électrochimique de dérivés bas-valents de samarium pour des applications électrosynthétiques et catalytiques." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112347.

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Depuis la découverte par le Pr. Kagan en 1977 de conditions douces de synthèse du diiodure de samarium (SmI2), ce réactif est rapidement devenu un des meilleurs réducteurs chimiques utilisé en synthèse organique. Cependant, en tant que réducteur mono-électronique, il est souvent employé en quantité sur-stœchiométrique ce qui impose l’utilisation de quantité importante de réactif qui possède par ailleurs une faible solubilité dans le THF (solvant de choix pour ce réactif) ce qui impose également de trop importantes quantités de solvant. Dans ce travail de thèse, nous nous sommes intéressés à l’

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33

Kwamou, Kouayep Bertrand Mirador. "Synthèse et caractérisation électrochimique de liquides ioniques à base de phosphonium pour les applications aux batteries au lithium." Mémoire, Université de Sherbrooke, 2014. http://hdl.handle.net/11143/5884.

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Les besoins énergétiques de la population mondiale ne cessent de croître, cette croissance est beaucoup plus attribuée à la venue de nouveaux consommateurs des pays émergents. Les réserves de gisement de pétrole fossile, principale source d’énergie de notre civilisation ne suivant pas la demande, la recherche de nouvelles sources d’énergie ou compléments énergétiques de ceux classiques demeure un challenge important pour l’avenir de notre société. Les batteries au lithium demeurent une réponse dite énergie renouvelable pour la lutte que se livrent les pays du globe pour limiter l’échéance de l

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34

Ganiyu, Soliu. "Electrochemical Advanced Oxidation Processes for removal of Pharmaceuticals from water : Performance studies for sub-stoichiometric titanium oxide anode and hierarchical layered double hydroxide modified carbon felt cathode." Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1116/document.

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AbstractLes polluants émergents que sont les résidus de produits pharmaceutiques sont devenus une problématique majeure de par leur persistance et leur accumulation continue dans les différents compartiments de l’environnement. Leur élimination est un des challenges majeurs de ce siècle. Les procédés électrochimiques d’oxydation avancée (PEOA) tel que l’oxydation anodique (AO) et l’électro-Fenton (EF) ont démontré leur efficacité pour la dégradation et la minéralisation complète de cette classe de polluant. Un oxyde de titane sous-stœchiométrique déposé par plasma sur un alliage de titane a ét

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35

Sun, Shichen. "Electrochemical Behaviors of the Electrodes for Proton Conducting Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFC)." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3915.

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Proton conducting intermediate temperature (600oC-400oC) solid oxide fuel cells (IT-SOFC) have many potential advantages for clean and efficient power generation from readily available hydrocarbon fuels. However, it still has many unsolved problems, especially on the anode where the fuel got oxidized and the cathode where oxygen got reduced. In this study, for the anode, the effects of hydrogen sulfite (H2S) and carbon dioxide (CO2) as fuel contaminants were studied on the nickel (Ni) based cermet anode of proton conducting IT-SOFC using proton conducting electrolyte of BaZr0.1Ce0.7Y0.1Yb0.1O3

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Melendez-Ceballos, Arturo. "Adéquation de nouvelles compositions d'électrolytes et de revêtements protecteurs nanostructurés de la cathode pour les piles à combustible à carbonates fondus TiO2 protective coating processed by Atomic Layer Deposition for the improvement of MCFC cathode Electrochemical properties of Atomic layer deposition processed CeO2 as a protective layer for the molten carbonate fuel cell cathode." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066103.

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Dans ce travail, nous développons deux grands axes de recherche liés aux carbonates fondus. Le premier est l'optimisation des piles à combustible à base de carbonates fondus, avec deux approches : (i) l'amélioration de la durée de vie de la cathode grâce à des couches ultra-minces d'oxydes métalliques élaborés par la technique de dépôt de couches atomiques; (ii) la modification des électrolytes Li-K et Li-Na par addition de Cs ou de Rb. Le second est consacré à la valorisation du CO2 par sa réduction électrochimique dans les électrolytes à carbonates fondus, où nous analysons la réduction du C

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Janíček, Zdeněk. "Stabilita katodového materiálu pro LI-ion akumulátory." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220974.

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This diploma thesis focuses on study of positive electrode materials for Li-Ion batteries. Our aim are intercalation materials whose are really perspective materials whose are widely used in this case. The theoretical part of my thesis focus on basic study of Li-ion batteries and their parameters. We studied charging and discharging processes. AFM and SEM were used as additional techniques for study LiCoO2 a Li0,975K0,025CoO2. We tested lifetime and stability of electrode as a perspective material for electrode for Li-ion batteries.

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Wang, Xiaoxiang. "Structural and defects engineering of electrode materials for enhanced supercapacitors performance." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/208154/2/Xiaoxiang_Wang_Thesis.pdf.

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This PhD project aims to address the low energy storage issues of electrode materials for supercapacitors through morphological and defect engineering. The key scientific contribution in this thesis includes: revealing the superior intrinsic electrochemical properties of NiCo-sulfide to hydroxide/oxides, demonstrating a facial defect engineering to enhance electrochemical properties of CoxNi1-xS2 by low temperature plasma, developing a new method for synthesis of high-performance carbon material derived by biomass.

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VERSACI, DANIELE. "Materials for high energy Li-ion and post Li-ion batteries." Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2896992.

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Delbos, Cédric. "Contribution à la compréhension de l'injection par voie liquide de céramiques (Y. S. Z. ; Pérovskite,. . . ) ou métaux (Ni,. . . ) dans un plasma d'arc soufflé afin d'élaborer des dépôts finement structurés pour S. O. F. Cs." Limoges, 2004. http://aurore.unilim.fr/theses/nxfile/default/e9f63d07-0a8c-400d-8f58-adc4585d61e6/blobholder:0/2004LIMO0035.pdf.

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Ces travaux de recherche sont dédiés à l’élaboration, par un même et unique procédé, des différentes couches (électrolyte / anode / cathode) entrant dans la composition des piles à combustibles à oxyde solide (S. O. F. Cs : Solid Oxide Fuel Cells). L’électrolyte en zircone yttriée (Y. S. Z. : Yttria Stabilised Zirconia) doit présenter une microstructure dense (imperméable aux gaz) d’une épaisseur comprise entre 5 et 20 µm, tandis que les électrodes doivent être poreuse et plus épaisses (200-500 µm), en Ni-Y. S. Z. (anode) et LaMnO 3 (cathode). La technique choisie pour atteindre ces objectifs

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Vert, Belenguer Vicente Bernardo. "ELECTRODOS AVANZADOS PARA PILAS DE COMBUSTIBLE DE ÓXIDO SÓLIDO (SOFCs)." Doctoral thesis, Universitat Politècnica de València, 2012. http://hdl.handle.net/10251/14669.

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Las celdas de combustible de óxido sólido (cuyo acrónimo en inglés es SOFC) son dispositivos energéticos capaces de convertir la energía química de un combustible directamente en energía eléctrica. Esto las dota de unas eficiencias eléctricas muy elevadas, que pueden llegar a ser del 80% si se aprovecha su calor residual de alta calidad mediante turbinas. Además, son capaces de funcionar con una gran variedad de combustibles: hidrógeno, gas natural, gas de síntesis, etanol, metanol, etc. Sin embargo, para su inserción en la cadena de producción energética, su temperatura de funcionamiento debe

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Ravella, Uday Krishna. "Thermal stability of potential fuel cell core materials La2Mo2-yWyO9 (0 ≤ y ≤ 2.0) under air and reductive atmospheres, and in contact with a Sr containing cathode material." Phd thesis, Université du Maine, 2012. http://tel.archives-ouvertes.fr/tel-00743197.

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La2Mo2-yWyO9 (y = 1.0 to 2.0) oxides were synthesized by conventional solid state route and studied by XRD, TC-XRD and DTA. A phase diagram of the series was proposed. The thermodynamically stable phases at room temperature are: for 1.0≤ y ≤1.2 a cubic β-La2Mo2O9 type solid solution, for 1.3≤ y ≤1.575 a biphasic mixture of β-La2Mo2O9 type + α-La2W2O9 type phases, and for 1.6≤ y ≤2.0 a triclinic α-La2W2O9 type solid solution. Inhomogeneous distribution of W is suspected in the biphasic samples. It is clear that the compounds above y =1.2 are not suitable for SOFC applications.Cationic diffusion

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Pustowka, Pavel. "Studie vlastností pokročilých materiálů pro katody lithno-iontových akumulátorů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-254476.

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This thesis in its first part deals especially with characteristic of lithium ion accumulators in terms of their structure, electrochemical properties and also features of the most commonly used cathode materials. Especial attention is given to the high-voltage cathode material LiNi0,5Mn1,5O4 which cell voltage is close to 5V. The second practical part deals with the preparation of cathode materials based on LiNi0,5Mn1,5O4 with different temperatures in the second stage of annealing and analyzing them in terms of structure and electrochemical properties using appropriate measuring methods.

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Petr, Jakub. "Nové materiály pro Li-iontové baterie pracující na principu konverze." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220927.

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This thesis is interested in new materials for lithium – ion batteries. Two different samples were investigated, one intercalation and one conversion cathode material. The theoretical part is focused to the structure of cells, their advantages and disadvantages compared to other secondary batteries. Also other materials used in batteries are described. The practical part describes the preparation of cathode materials for subsequent testing by scanning elektron microscopy and thermogravimetric analysis. In conclusions two different materials were evaluated and compared with each other.

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Petrik, Leslie F. "Pt Nanophase supported catalysts and electrode systems for water electrolysis." Thesis, University of the Western Cape, 2008. http://hdl.handle.net/11394/2743.

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Doctor Scientiae - DSc<br>In this study novel composite electrodes were developed, in which the catalytic components were deposited in nanoparticulate form. The efficiency of the nanophase catalysts and membrane electrodes were tested in an important electrocatalytic process, namely hydrogen production by water electrolysis, for renewable energy systems. The activity of electrocatalytic nanostructured electrodes for hydrogen production by water electrolysis were compared with that of more conventional electrodes. Development of the methodology of preparing nanophase materials in a rapid, effic

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Zhang, Yubai. "Electrochemical synthesis of 2D materials and their applications in energy storage." Thesis, Griffith University, 2021. http://hdl.handle.net/10072/410071.

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2D materials have inspired the intrigue of researchers and industries for its potential to improve the performance of existing materials in energy storage field. However, wide application of 2D material such as graphene and transition metal dichalcogenides in batteries is not implemented since the tremendous challenges and issues, the quality, quantity, and cost concerns impede its commercialization. Electrochemical approach performs as a controllable and scalable method for exfoliating, expanding, and functionalizing the pristine bulk materials on-demand. Sodium ion batteries, a promising can

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Randström, Sara. "New Materials for the Molten Carbonate Fuel Cell." Doctoral thesis, KTH, Tillämpad elektrokemi, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4636.

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Smältkarbonatbränslecellen (MCFC) är en högtemperaturbränslecell för stationära applikationer. Den har samma höga totalverkningsgrad som konventionella kraftvärme-anläggningar, men kan byggas i mindre moduler (från 250 kWe). De små modulerna och den bränsleflexibilitet (naturgas, biogas, etanol, diesel) som MCFC har, gör den intressant för exempelvis industrier med organiska restprodukter och höga krav på tillförlitlighet. Den höga temperaturen och närvaron av en saltsmälta gör dock materialdegradering till en viktig faktor för forskning och utveckling inom området. För även om de fälttester s

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Hao, Yong. "Sulfur Based Electrode Materials For Secondary Batteries." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2582.

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Developing next generation secondary batteries has attracted much attention in recent years due to the increasing demand of high energy and high power density energy storage for portable electronics, electric vehicles and renewable sources of energy. This dissertation investigates sulfur based advanced electrode materials in Lithium/Sodium batteries. The electrochemical performances of the electrode materials have been enhanced due to their unique nano structures as well as the formation of novel composites. First, a nitrogen-doped graphene nanosheets/sulfur (NGNSs/S) composite was synthesized

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Luchkin, Sergey Yurevich. "Local probing of Li+ diffusion and concentration in Li-ion battery materials by scanning probe microscopy." Doctoral thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/14825.

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Doutoramento em Ciência e Engenharia de Materiais<br>This thesis presents the results of Scanning Probe Microscopy (SPM) study of Li-ion battery active materials. The measurements have been performed on LiMn2O4 cathodes and graphite anodes extracted from commercial Li batteries at different states of charge and health. The study has been focused on measurements of Li spatial distribution and transport properties in the active electrode materials. Special attention has been paid to influence of fatigue caused by high C rate cycling on Li spatial distribution and local diffusion coefficient. Ele

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El, jouad Zouhair. "Réalisation et caractérisation des cellules photovoltaïques organiques." Thesis, Angers, 2016. http://www.theses.fr/2016ANGE0022/document.

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Cette thèse s’insère dans un projet d’élaboration et de caractérisation des cellules photovoltaïques organiques classiques et inverses, plus précisément il s’agit d’améliorer les performances des cellules via des couches tampons anodiques et cathodiques originales. Nous avons commencé d’améliorer les couches tampons cathodiques avec différents donneurs d’électrons: phtalocyanine de cuivre CuPc, subphtalocyanine SubPc et dérivés de thiophène organiques. Dans le premier cas de donneur d’électrons (CuPc), nous avons mis en évidence l’effet d’une fine couche d’un composé de césium, utilisée comme

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