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Dissertations / Theses on the topic 'Electrolytic plating'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Nováková, Eliška. "Vliv technologického procesu práškového lakování na kvalitu pokovení stříbrem u komponent plynem izolovaných rozvoden – GIS." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399303.

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The thesis deals with the topic of silver coating on the inner surface of the tubes made of aluminum alloy EN AW-6101B. The high affinity of the aluminum for the oxygen, the heterogeneity of the surface and the presence of the hydrogen in the base material, are the properties which hinder the formation of metallic coating on the surface of the aluminum alloy. The saturation of the base material with the hydrogen, e.g. due to the pretreatment of the surface or by the process of creating of coatings, may under certain conditions cause the defects of the silver coating in the form of the bubbles

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2

Ottosson, Andreas. "Thermal spraying by HVAF as an environmentally friendly alternative to electrolytic hard chrome plating of piston rods." Thesis, Högskolan Väst, Avd för maskinteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hv:diva-5797.

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3

Baissac, Lucas. "Compréhension des mécanismes d’élaboration de revêtements de zinc électrolytiques composites (nano et microparticules) pour la protection vis-à-vis de la corrosion de l’acier et les propriétés d’adhésion." Thesis, Bourgogne Franche-Comté, 2019. http://www.theses.fr/2019UBFCD005.

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Les revêtements électrodéposés d’alliages zinc-nickel, sont très utilisés pour protéger l’acier de la corrosion et dans la production de pièces d’assemblage avec des caoutchoucs adhérisés. Cependant, ils présentent l’inconvénient de coûts élevés et sont par visés l’évolution des normes européennes qui cherchent à restreindre l’usage des sels de nickel. Ce travail propose d’incorporer des particules de silices et/ou de PMMA à une matrice de zinc, de dimensions respectivement nano et submicrométriques. Si la disponibilité commerciale des particules de silice n’est pas un problème, ce n’est pas l

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4

Boulord, Caroline. "Développement de techniques de métallisation innovantes pour cellules photovoltaïques à haut rendement." Phd thesis, INSA de Lyon, 2011. http://tel.archives-ouvertes.fr/tel-00679876.

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Cette thèse s'est focalisée sur le développement et l'optimisation de techniques de métallisation électrochimique permettant le dépôt de métaux conducteurs, l'argent et le cuivre, par voie électrolytique ou par la technique dite LIP (Light-Induced Plating). Deux approches ont été abordées pour l'élaboration des contacts en face avant : l'épaississement de contacts sérigraphiés d'une part, et la réalisation de contacts entièrement par voie électrochimique sans recours à la sérigraphie. Pour cette dernière solution, le dépôt d'une couche d'accroche avant l'étape d'épaississement est nécessaire a

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5

Zhang, Yuhan. "POLYMER ELECTROLYTES FOR HIGH CURRENT DENSITY LITHIUM STRIPPING/PLATING TEST." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1555090752890092.

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6

Ma, Shufang. "Sustained deposition of thick coatings of chromium from environmentally acceptable chromium (III) electrolytes." Thesis, Glasgow Caledonian University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308560.

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7

Lim, Seng Woon. "Surface reactions, solvation, and adsorption phenomena of electrolytic adlayers on metal surfaces /." Thesis, Connect to this title online; UW restricted, 2000. http://hdl.handle.net/1773/9837.

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8

Ekström, Henrik. "Evaluating Cathode Catalysts in the Polymer Electrolyte Fuel Cell." Doctoral thesis, KTH, Tillämpad elektrokemi, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4413.

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The polymer electrolyte membrane fuel cell (PEMFC) converts the chemical energy of hydrogen and oxygen (air) into usable electrical energy. At the cathode (the positive electrode), a considerable amount of platinum is generally required to catalyse the sluggish oxygen reduction reaction (ORR). This has implications regarding the cost in high-power applications, and for making a broad commercialisation of the PEMFC technology possible, it would be desirable to lower the amount of Pt used to catalyse the ORR. In this thesis a number of techniques are described that have been developed in order t

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9

Madden, Thomas H. "Novel technique development for characterizing electro-oxidation processes on platinum surfaces /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/9836.

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10

Palaniappan, Ramasamy. "Improving The Efficiency Of Ammonia Electrolysis For Hydrogen Production." Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1386341476.

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11

Thompson, Scott Damon 1976. "Electrodeposition of platinum-based catalysts for polymer electrolyte membrane fuel cells." Monash University, School of Physics and Materials Engineering, 2003. http://arrow.monash.edu.au/hdl/1959.1/5668.

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12

Komini, Babu Siddharth. "Electrode Development and Characterization for Polymer Electrolyte Fuel Cell with Low to Zero Platinum Loading." Research Showcase @ CMU, 2016. http://repository.cmu.edu/dissertations/759.

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Electrification of vehicles could enable the transportation sector to be more efficient with reduced emissions. Polymer electrolyte fuel cell (PEFC) vehicles powered by sustainably generated hydrogen fuel would be a viable replacement for internal combustion engines. PEFC powered vehicles are highly efficient and offer zero tailpipe emissions. State-of-the-art PEFCs rely on platinum (Pt) and platinum alloy catalyst nanoparticles supported on high surface area carbon black bound by ionomer. The high Pt loadings currently needed for the low-temperature acidic oxygen reduction reaction (ORR) incu

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13

Boulenouar-Mohamedi, Fatma Zohra. "Étude de l'oxydation anodique de l'hydrogène à l'interface métal/zircone stabilisée à haute température (métal=platine, nickel, cuivre)." Grenoble INPG, 1995. http://www.theses.fr/1995INPG0055.

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Ce travail s'inscrit dans le cadre de recherches conduites sur les piles a combustible fonctionnant a haute temperature et mettant en jeu un electrolyte solide conducteur par ions oxydes (zircone stabilisee a l'oxyde d'yttrium: ysz). L'objet de cette recherche est de preciser les influences respectives des pressions partielles d'hydrogene et d'eau dans la polarisation anodique de l'interface metal/ysz, le metal etant: le platine, le nickel ou le cuivre. A l'equilibre, l'etude a montre l'interet de differencier les roles respectifs de l'hydrogene et de la vapeur d'eau et de ne pas traiter les r

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14

Martins, Pedro Farinazzo Bergamo Dias. "Atividade eletrocatalítica e estabilidade de nanopartículas de platina suportadas em óxido de molibdênio e carbono frente à reação de redução de oxigênio." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/75/75134/tde-27012015-090303/.

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O envelhecimento dos eletrocatalisadores utilizados em cátodos de células a combustível de eletrólito polimérico (PEMFCs) é um dos principais fatores que restringem sua aplicação como conversores de energia em larga escala. Esse trabalho visa contribuir para o aprimoramento da estabilidade de nanopartículas de platina (NPs de Pt) por meio da modificação do suporte catalítico aos quais encontram-se impregnadas. Desse modo, foram realizadas sínteses de suportes catalíticos baseados em óxidos de molibdênio (MoO3 e MoO2) ancorados em carbono Vulcan® XC72-R, sendo os materiais produzidos caracteriz

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15

Brunello, Giuseppe. "Computational modeling of materials in polymer electrolyte membrane fuel cells." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/48937.

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Fuel cells have the potential to change the energy paradigm by allowing more efficient use of energy. In particular, Polymer Electrolyte Membrane Fuel Cells (PEMFC) are interesting because they are low temperature devices. However, there are still numerous challenges limiting their widespread use including operating temperature, types of permissible fuels and optimal use of expensive catalysts. The first two problems are related mainly to the ionomer electrolyte, which largely determines the operating temperature and fuel type. While new ionomer membranes have been proposed to address some of

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16

Williams, Mario. "Characterization of platinum-group metal nanophase electrocatalysts employed in the direct methanol fuel cell and solid-polymer electrolyte electrolyser." Thesis, University of the Western Cape, 2005. http://etd.uwc.ac.za/index.php?module=etd&amp.

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GOMES, THIAGO B. "Estudo da reação de redução do oxigênio utilizando eletrocatalisadores à base de platina e terras raras (La, Ce, Er) para aplicação em células a combustível tipo PEM." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10586.

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Made available in DSpace on 2014-10-09T12:42:16Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:05:20Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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18

Bonnin, Egilda Purusha. "Electrolysis of Ammonia Effluents: A Remediation Process with Co-generation of Hydrogen." Ohio : Ohio University, 2006. http://www.ohiolink.edu/etd/view.cgi?ohiou1156435340.

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19

Savych, Maciejasz Juliia. "Synthèse et caractérisation de nanocomposites platine/nanofibres pour électrodes de pile à combustible à électrolyte polymère." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20152/document.

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Cette thèse s'inscrit dans le contexte général des efforts de recherche pour développer des supports de catalyseur résistant à la corrosion qui peuvent potentiellement remplacer le carbone dans les piles à combustible à électrolyte polymère. Des nanofibres et des nanotubes à base de TiO2 et SnO2 dopés par Nb ont été préparés par filage électrostatique et caractérisés par diffraction des rayons X, spectroscopie des photoélectrons de rayons X, spectroscopie Raman, mesures de surface spécifique et de conductivité électronique. Les nanofibres de TiO2 et SnO2 dopées par Nb présentent une conductivi

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Malki, Abdelhafid. "Transformation électrocatalytique de produits issus de la biomasse : oxydation du fructose sur électrodes d'or et de platine." Poitiers, 1988. http://www.theses.fr/1988POIT2274.

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L'oxydation electrochimique du fructose en milieu basique et en milieu acide est realisee: une etude cinetique est effectuee, on etudie la modification des proprietes catalytiques superficielles des electrodes par adjonction d'adatomes, on fait plusieurs electrolyses a potentiel programme montrant que l'on obtient par cette reaction un melange d'acides gluconique, tartrique et citrique

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RIBEIRO, MARIA A. M. "Contribuicao ao estudo do impacto ambiental das pilhas a combustivel de baixa e media temperatura atraves da metodologia Delphi." reponame:Repositório Institucional do IPEN, 2009. http://repositorio.ipen.br:8080/xmlui/handle/123456789/9426.

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Made available in DSpace on 2014-10-09T12:26:43Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:06:18Z (GMT). No. of bitstreams: 0<br>Tese (Doutoramento)<br>IPEN/T<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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22

Drevet, Corinne. "Réaction d'électrode à oxygène sous densité de courant et pression d'oxygène élevées : application : compresseur électrochimique à oxygène." Grenoble INPG, 1996. http://www.theses.fr/1996INPG0159.

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La mise au point d'un compresseur electrochimique a oxygene, entierement statique, presente un double interet: d'une part comme generateurs d'oxygene embarques pour l'aviation et, d'autre part, dans des minirefroidisseurs pour applications en optronique dans le domaine militaire ou spatial. Sur le plan pratique, un prototype a ete concu et realise. Il se presente sous forme d'un tube a fond ferme de zircone stabilisee, revetu d'electrodes en platine ; la temperature de fonctionnement est de 800c. Les tests effectues ont confirme la faisabilite d'un tel prototype: une pression de 100 bar a ete

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23

Krüger, Andries Johannes. "Properties and use of SO2 for the hybrid sulfur process / Krüger A.J." Thesis, North-West University, 2011. http://hdl.handle.net/10394/7615.

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Thematic interrelation is an underdeveloped field of inquiry in Lukan studies. The design and elegance of Lukan theology begs for guided investigation into a possible system of organisation that governs history and theology, that is, narrative and theme. Based on the Greimasian Actantial Model, morpho–syntactical structural–critical analysis of Luke and Acts reveals that the covenant concept in its operative aspect of service functions as an organising principle, structuring the narratives and facilitating thematic interrelation. A survey of representative Lukan research consisting of five met

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Pearman, Benjamin. "The Behavior of Cerium Oxide Nanoparticles in Polymer Electrolyte Membranes in Ex-Situ and In-Situ Fuel Cell Durability Tests." Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5368.

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Fuel cells are known for their high efficiency and have the potential to become a major technology for producing clean energy, especially when the fuel, e.g. hydrogen, is produced from renewable energy sources such as wind or solar. Currently, the two main obstacles to wide-spread commercialization are their high cost and the short operational lifetime of certain components. Polymer electrolyte membrane (PEM) fuel cells have been a focus of attention in recent years, due to their use of hydrogen as a fuel, their comparatively low operating temperature and flexibility for use in both station

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25

Armand, Dominique. "Etude du rôle des structures cristallines intrinsèque et induite du platine sur l'électrosorption de l'hydrogène et de l'oxygène en milieu acide." Paris 6, 1986. http://www.theses.fr/1986PA066073.

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L'influence de la structure cristalline superficielle du platine sur le processus d'électrosorption de l'hydrogène a été étudiée dans différents électrolytes sur les 3 orientations de base avec mise en évidence d'états d'adsorption de l'hydrogène situes à des potentiels exceptionnellement élevés, sur les surfaces à marches (511), (310), (211), (331) et sur un monocristal sphérique. Parallèlement l'effet de l'électrosorption d'oxygène sur la structure de toutes ces surfaces a été étudié en utilisant H2 comme une espèce sonde sensible à la surface cristalline superficielle.

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YOVANOVICH, MARCOS. "Oxidação eletroquímica do ácido fórmico em eletrólito ácido e básico utilizando eletrocatalisadores PtBi/C e PdBi/C preparados pelo método de redução via borohidreto de sódio adição rápida." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26799.

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Submitted by Claudinei Pracidelli (cpracide@ipen.br) on 2016-11-11T09:51:24Z No. of bitstreams: 0<br>Made available in DSpace on 2016-11-11T09:51:24Z (GMT). No. of bitstreams: 0<br>PtBi/C e PdBi/C foram preparados em diferentes razões atômicas (100:0, 90:10, 80:20, 70:30, 60:40 e 50:50) pelo método de redução via borohidreto de sódio (com adição total da solução de borohidreto em uma única etapa) utilizando H2PtCl6.6H2O, Pd(NO3)2, (BiNO3)3.5H2O como fonte de metais, Vulcan® (XC72-Cabot) como suporte de carbono e com uma carga metálica correspondente a 20% em massa. Os eletrocatalisadores obtid

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Dywili, Nomxolisi Ruth. "Development of Metal Nanoparticle-Doped Polyanilino-Graphene Oxide High Performance Supercapacitor Cells." University of the Western Cape, 2018. http://hdl.handle.net/11394/6251.

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Philosophiae Doctor - PhD (Chemistry)<br>Supercapacitors, also known as ultracapacitors or electrochemical capacitors, are considered one of the most important subjects concerning electricity or energy storage which has proven to be problematic for South Africa. In this work, graphene oxide (GO) was supported with platinum, silver and copper nanoparticles anchored with dodecylbenzenesulphonic acid (DBSA) doped polyaniline (PANI) to form nanocomposites. Their properties were investigated with different characterization techniques. The high resolution transmission electron microscopy (HRTE

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Chatenet, Marian. "Cathode à air pour l’électrolyse chlore-soude." Grenoble INPG, 2000. http://www.theses.fr/2000INPG0094.

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Ce travail concerne l’étude préliminaire de l’emploi d’une cathode à air dans le procédé́ d’électrolyse chlore-soude à membrane, étude motivée par les substantielles économies d’énergie que ce type de cathodes permettrait. Dans une première phase, les paramètres de transport de l’oxygène en solution industrielle (NaOH 33 % à 80 °C) ont été́ mesurés et les caractéristiques physiques des catalyseurs nanodispersés sur carbone étudiés (Pt/C, Ag/C, Pt-Ag/C) établies. Puis, la détermination des paramètres cinétiques relatifs à la réduction d’oxygène en solution industrielle a été́ entreprise. Un ord

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SOUZA, LETICIA L. de. "Oxidação direta do etileno glicol sobre catalisadores eletroquímicos binários à base de Pt, Pd, e Sn suportados em carbono para aplicação em células alcalinas." reponame:Repositório Institucional do IPEN, 2016. http://repositorio.ipen.br:8080/xmlui/handle/123456789/26934.

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Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2016-12-21T17:42:04Z No. of bitstreams: 0<br>Made available in DSpace on 2016-12-21T17:42:04Z (GMT). No. of bitstreams: 0<br>Os catalisadores eletroquímicos binários de PtSn/C, PdSn/C e PtPd/C foram sintetizados em diferentes proporções pelo método da redução via borohidreto, posteriormente estes foram caracterizados por microscopia eletrônica de transmissão, difração de raios X, espectroscopia no infravermelho por transformada de Fourier (PtSn/C e PdSn/C) e energia dispersiva de raios X. As atividades eletroquímicas dos difer

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Norlin, Anna. "Investigation of electrochemical properties and performance of stimulation/sensing electrodes for pacemaker applications." Doctoral thesis, Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176.

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Ho, W. S., and 何文賢. "The Study of Electrolytic Al2O3 Coating on Post Electroless Nickel Plating on SKD61 Mold Steel." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/26266043005922264690.

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碩士<br>國立中興大學<br>材料工程學研究所<br>88<br>The electrolytic deposition of alumina(Al2O3) coatings on post electrolytic Ni deposited SKD61 was conducted in an aqueous solution of alumina-nitrate[Al(NO3)3]. The better condition of alumina coatings on Ni alloy was determined by controlling different electrical-chemical parameter (solvent 、concentration、potential、time) and different sintering conditions. The followed characterizations were conducted by using Potentiostat、SEM/EDS、XRD、wear test and scratch test. From the left shifting of the polarization curves, it was known that the di

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Rigali, Jeffrey. "Electroless Deposition & Electroplating of Nickel on Chromium-Nickel Carbide Powder." 2017. https://scholarworks.umass.edu/masters_theses_2/550.

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Engineered components can gain desirable properties when coated with surface materials. Wear-resistant coatings can improve the performance of contacting surfaces and allow for an extended life of the parts. Hard chromium has been the plating material of choice for certain wear and corrosion- resistant coatings because of its desirable combination of chemical resistance, adhesion, and mechanical properties. However, hexavalent chromium, a component of the process for applying hard chromium coatings, has been recognized by the EPA as having hazardous health and environmental impacts. Existing a

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Berdos, Richard. "Electroplating of Copper on Tungsten Powder." 2018. https://scholarworks.umass.edu/masters_theses_2/727.

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Strengthening, resistant and shielding properties, to name a few, can be achieved by implementing a surface material coating onto an engineering component. Various elements of these compounded parts can augment the functionality of the part, such as, increased life time and more interactive surfaces. Tungsten has proven to be a challenge to plate with other metals, but if done correctly, the results can allow for the cold spray of tungsten. Cold spraying tungsten particles alone provides a challenge because the powder is too hard and instead of adhering, it erodes the surface it is attempting

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Rapheal, George. "Corrosion And Wear Behaviour of Plasma Electrolytic Oxidation And Laser Surface Alloy Coatings Produced on Mg Alloys." Thesis, 2016. http://etd.iisc.ernet.in/handle/2005/2716.

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In the present investigation, surface coatings employing laser surface alloying (LSA) and plasma electrolytic oxidation (PEO) processes have been prepared on Mg alloys. The coatings have been investigated for corrosion and wear behaviour. Two important Mg alloys based on Mg–Al system were selected namely, MRI 230D and AM50 as substrates. LSA coatings have been prepared employing Al and Al2O3 as precursors using different laser scan speeds. PEO coatings were prepared in standard silicate and phosphate based electrolytes employing unipolar, pulsed DC. Hybrid coatings using a combination of the t

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Ying, Szu, and 何思縈. "The effects of circulation on water production electrolysis by using titanium mesh electrode platinum plating." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/21725479370717882983.

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碩士<br>雲林科技大學<br>環境與安全工程系碩士班<br>97<br>Hydrogen is a resource with cleanness, zero pollution, and economic benefits; among all the fuels, it has the highest density, and it is the most potential for development of sustainable clean energy. By using electrolytic hydrogen to explore aquaculture. The important factors of electrolysis rate include the varied kinds and concentrations of electrolyte, and ion concentration. Adding the electrolyte affects the electric conductivity including the quality and temperature of electrolyte, and ion concentrations. For example, increasing the ionic strength and

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Lin, Ting-yu, and 林廷育. "Electrolysis recovery of nickel from spent electroless nickel plating solution." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/17399091443936885802.

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碩士<br>朝陽科技大學<br>環境工程與管理系碩士班<br>99<br>Nickel is a really rare and expensive metal, and it can cause cancer. Nickel''s price is getting higher recently and the production cost is increasing, and therefore it is really important to take care of spent electroless nickel plating solution. If the spent solution is treated improperly, it would not only cause heavy metal contamination, but also resource wasting. The focus of this study is on the adoption of electrolysis method to recover nickel from spent electroless nickel plating solution. Unlike traditional chemical precipitation method w

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Chiu, Chien-Wen, and 邱建文. "Electrolytic recovery of noble metals from acidic platinum and ruthenium chlorides wasteliquid." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/uqe6sv.

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碩士<br>國立臺北科技大學<br>化學工程研究所<br>96<br>In the situation of fossil fuel shortage, the direct methanol fuel cell (DMFC) was day after day more important. However the fuel cell is uses platinum and ruthenium metals catalyst as the cell core. Since the platinum and the ruthenium prices are expensive, therefore the DMFC is unable to be popular for use. If the used catalyst and wasteliquid of the fuel cell could be recovered, the cell cost might be reduced and could reach the recycling use. In this study used the wasteliquid from our laboratory the platinum concentration was 1900ppm, the ruthenium c

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Chiove, Kei-Wen, and 邱開文. "The sensing behavior of the solid polymer electrolyte modified by Platium." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/67787890068663979575.

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碩士<br>國立成功大學<br>化學工程學系<br>86<br>Ammonium ion sensor has a great deal of interest due to its importance in analyzing ammonium ion in many areas, such as foods, drugs, biochemical studies and environmental pollution controls. In this study, chemical redox, T-T, chemical oxidizing and electropolymerization by constant potential methods were used to prepare Pt/Nafion?Pt、Au/Nafion恣BPpy/Nafion?Ppy、 PAni/Nafion?Pani and Ppy/Pt/Nafion?Pt electrodes of two- electrode type. The better sensing elect

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Zahm, Lance Leon. "Nuclear investigations of the eletrolysis of D₂O using palladium cathodes and platinum anodes." Thesis, 1990. http://hdl.handle.net/1957/37958.

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LI, WEN-LUNG, and 李汶龍. "Preparation of Platinum Nanopillar-Array Electrodes and Their Impedance Characteristics of Water Electrolysis for Hydrogen Evolution." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/p836a2.

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碩士<br>南臺科技大學<br>光電工程系<br>106<br>In order to decrease the operating voltage and increase the efficiency of water electrolysis, we produced nanostructured materials as the electrodes.We electroplated platinum into the pores of anodic aluminum oxide(AAO)template to form electrode with high specific surface area which effectively increased the catalytic activity. The experimental procedures were as follows：(1)Using electron beam evaporator to deposit titanium film on glass substrate as the buffer layer, and then deposit gold strips as the conducting layer；followed by thermal evaporation to deposit

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Sun, Yu, and 孫佑. "Formation of Platinum Monolayer on Carbon-Supported Pd-Ru Electrocatalysts for Oxygen Reduction Reaction in Acidic Electrolytes." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/73601037395735824591.

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碩士<br>國立交通大學<br>工學院加速器光源科技與應用碩士學位學程<br>103<br>Nanoparticles of PdRu, Pd3Ru, and Pd9Ru are synthesized and impregnated on carbon black via a wet chemical reflux process. X-ray diffraction patterns of the as-synthesized samples, PdxRu/C (x=1/3/9), suggest succesful formation of alloy without presence of individual Pd and Ru nanoparticles. Images from transmission electron microscope confirm irregularly-shaped nanoparticles with average size below 3 nm. Analysis from extended X-ray absorption fine structure on both Pd and Ru K-edge absorption spectra indicate that Ru atoms are enriched on the sur

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Chi, Chun-Han, and 紀鈞瀚. "Platinum/ Self-Doping Polyaniline Based Counter Electrodes and Carbon/ PEO Based Gel Electrolytes for Dye Sensitized Solar Cells." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/72421294372751160771.

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碩士<br>國立中興大學<br>化學工程學系所<br>100<br>In this study, we researched on the dye-sensitized solar cell, divided into two parts. The first part is about the platinum/ self-doping polyaniline based counter electrodes, and second part is about the carbon/ PEO based gel electrolytes. In first part is about the platinum/ self-doping polyaniline (PtNPs/SPANI) based counter electrodes. The SPANIs with nano-spherical (S-SPANI) and nano-tube (T-SPANI) structures were self-assembly on the indium-tin oxide (ITO) coated glass substrate via the in-situ oxidation polymerization. The nano-spherical type S-SPANI and

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Wu, Wen Hong, and 吳文宏. "Fabrication of Platinum Coated Titanium Electrodes from Low Temperature Molten Salt Electrolytes and The Influences of Electrochemical Behaviors." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/00832900000409216750.

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碩士<br>國立雲林科技大學<br>工業化學與災害防治研究所碩士班<br>90<br>The research for developing anticorrosive and functional platinum coated titanium electrodes which are used to electrolysis the sea water to produce sodium hypochloride. A new ternary low temperature molten salt LiCl-NaCl-KCl system is chosen as electrolyte and various PtCl2 amounts were added to the salt system for studying their influences on the electrodeposition process. The relationships between the transport properties of electrolytes and the electrodeposition operations are closed. The transport physical properties such as electrical conductivi

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Cheng, Hao-Sheng, and 鄭皓升. "Study of high performance non-platinum NiRu catalyst for electrocatalytic hydrogen evolution and oxidation reactions in alkaline electrolyte." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/x8a98x.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>105<br>In this study, the nickel (Ni)-ruthenium (Ru) bimetallic catalysts with different Ni/Ru ratios were successfully loaded on high-surface-area carbon black by using hydrothermal method. The bimetallic Pt-free catalyst shows a Pt-like activity and highly durable in alkaline hydrogen oxidation (HOR)/evolution (HER) reactions. Through the materials characterization, the particle size distribution for Ni-Ru catalyst was observed as around 2 ~ 3 nm compared to Ru/C which shows around 2 nm. In the results of X-ray absorption spectroscopy the alloy extent of the NixRu

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Wang, Si Ping, and 王曦平. "Study of the Electrochemical oxidation of Dissolved Carbon monoxide and Methanol in Alkaline electrolytes by using Fabricated Gold and Platinum-Gold Microelectrodes." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/xsf9bf.

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碩士<br>長庚大學<br>化工與材料工程學系<br>104<br>In this study, gold(Au) and platinum-gold alloy were used to study the electrochemical oxidation of carbon monoxide (CO) in alkaline electrolytes. Fabricated Au and platinum-gold alloy microelectrodes are used to study the rates of mass transfer of the dissolved carbon monoxide (CO) electrocatalysis in alkaline system. The electrochemical oxidation of dissolved CO on gold electrode was studied by using rotating disk electrode in forced convection approaches and the limiting currents of electrochemical oxidation of dissolved CO demonstrate negligible influence

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Chen, Chun Yi, and 陳駿逸. "Study of the electrochemical oxidation of dissolved CO in acidic and alkaline electrolyte by using pulse-electrodeposition fabricated gold and gold-platinum alloy nano-clusters on glass carbon RDE." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/88663853696423733413.

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碩士<br>長庚大學<br>化工與材料工程學系<br>100<br>The fabrication of gold and gold-platinum clusters on glass carbon rotating disc electrode (RDE) by using pulse-electrodeposition and co-electrodeposition approaches, and the metal clusters on glass carbon RDE were characterized by cyclic voltammetry to examine forced convection of the solution phase carbon monoxide (CO) electrochemical oxidation on metal cluster electrodes in alkaline and acid electrolyte. The oxidation currents of dissolved CO (10-3 M) on gold electrode in 1 M perchloric acid exhibits pure diffusion control behavior by using rotating disc

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Σαπουντζή, Φωτεινή. "Μελέτη της ηλεκτρικής απόδοσης και ηλεκτροχημική ενίσχυση της καταλυτικής ενεργότητας ανόδων πλατίνας και χρυσού κυψελών καυσίμου πολυμερικής μεμβράνης". Thesis, 2009. http://nemertes.lis.upatras.gr/jspui/handle/10889/1436.

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Οι κυψέλες καυσίμου είναι ηλεκτροχημικές διατάξεις οι οποίες επιτρέπουν την απευθείας μετατροπή της ελεύθερης χημικής ενέργειας ενός καυσίμου σε ηλεκτρική. Οι κυψέλες καυσίμου πολυμερικής μεμβράνης (ΡΕΜ) αποτελούν μία υποσχόμενη τεχνολογία που βρίσκεται κοντά στο στάδιο της εμπορευματοποίησης. Το κυριότερο καύσιμο που χρησιμοποιείται στις κυψέλες καυσίμου είναι το υδρογόνο, το οποίο παράγεται συνήθως από αναμόρφωση υδρογονανθράκων ή αλκοολών. Το μονοξείδιο του άνθρακα που παράγεται επίσης κατά την διαδικασία της αναμόρφωσης αποτελεί ένα σημαντικό άλυτο πρόβλημα στις κυψέλες ΡΕΜ, καθώς η ρόφησή

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Banerjee, Ipshita. "Formation of Porous Metallic Nanostructures Electrocatalytic Studies on Self-Assembled Au@Pt Nanoparticulate Films, and SERS Activity of Inkjet Printed Silver Substrates." Thesis, 2013. http://etd.iisc.ernet.in/2005/3453.

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Porous, conductive metallic nanostructures are required in several fields, such as energy conversion, low-cost sensors etc. This thesis reports on the development of an electrocatalytically active and conductive membrane for use in Polymer Electrolyte Membrane Fuel Cells (PEMFCs) and fabrication of low-cost substrates for Surface Enhanced Raman Spectroscopy (SERS). One of the main challenges facing large-scale deployment of PEMFCs currently is to fabricate a catalyst layer that minimizes platinum loading, maximizes eletrocatalytically active area, and maximizes tolerance to CO in the feed str

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