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Dissertations / Theses on the topic 'Electrodes, Palladium'

Author: Grafiati

Published: 4 June 2021

Last updated: 19 February 2022

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1

Cleghorn, Simon John Charles. "Electrocatalytic hydrogenation at palladium electrodes." Thesis, University of Southampton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.332771.

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2

Zaczek, Christoph. "Electrolysis of Palladium in Heavy Water." PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/5051.

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Following several reports in the past few years about compositional changes on palladium used as a cathode in heavy water electrolysis, the purpose of this research project was to reproduce this results. Two experiments were performed using two cells connected in series, an experimental cell and a control cell. Both experiments used platinum anodes, the experimental cell had a palladium cathode and the control cell had a platinum cathode. The electrolyte was D20 with H2S04. Radiation was monitored during both experiments. Also temperature and voltage were recorded for both experiments, to allo

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3

Kurpiewski, John Paul. "Electrospun carbon nanofiber electrodes decorated with palladium metal nanoparticles : fabrication and characterization." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32370.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005.<br>Includes bibliographical references (p. 126-128).<br>A new method was investigated to produce a novel oxygen reduction electrode comprised of carbon nanofibers for use in polymer electrolyte membrane (PEM) fuel cells and metal-air batteries. The process involved electrospinning a solution of polymer (polyacrylonitrile), noble metal salt (palladium (II) acetate), and organic solvent (n,n- dimethylformamide) to fabricate a porous, non-woven, free-standing nanofiber mesh. Through experimentation with m

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4

Ledezma, Razcon Eugenio A. "MODELING OF THE BIOELECTRIC SYSTEM FORMED BY PALLADIUM AND CARBON ELECTRODES INSERTED IN COTTON (GOSSYPIUM HIRSUTUM) PLANTS." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275289.

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5

Silwana, Bongiwe. "Graphene supported antimony nanoparticles on carbon electrodes for stripping analysis of environmental samples." University of the Western Cape, 2015. http://hdl.handle.net/11394/5141.

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>Magister Scientiae - MSc<br>Platinum Group Metals (PGMs), particularly palladium (Pd), platinum (Pt) and rhodium (Rh) have been identified as pollutants in the environment due to their increased use in catalytic converters and mining in South Africa (as well as worldwide). Joining the continuous efforts to alleviate this dilemma, a new electrochemical sensor based on a nanoparticle film transducer has been developed to assess the level of these metals in the environment. The main goal of this study was to exploit the capabilities of nanostructured material for the development and application

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6

Serrapede, Mara. "Nanostructured palladium hydride electrodes : from the potentiometric mode in SECM to the measure of local pH during carbonation." Thesis, University of Southampton, 2014. https://eprints.soton.ac.uk/366986/.

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The detection of local variations of the proton activity is of interest in many fields such as corrosion, sedimentology, biology and electrochemistry. Using nanostructured palladium microelectrodes Imokawa et al. fabricated for the first time a reliable and miniaturized sensor with high accuracy and reproducibility of the potentiometric-pH response. In absence of oxygen, the nanostructured palladium hydride tips are sensitive only to the activity of the protons close to their local environment and they have an almost Nernstian theoretical response with a slope of -58.7 mV/pH (25C) from pH 2 to

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7

Clymer, John Owen 1960. "Development of a palladium electrode oxygen sensor." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/291974.

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This thesis investigates the nature of the potential variations in an electrochemical cell. The cell consists of palladium electrodes immersed in a phosphate buffer electrolyte with a Ag/AgCl double junction reference electrode. The relaxation response of the electrodes to an applied potential is examined and current-potential curves ("voltammograms") are generated by plotting the current flowing through an external circuit versus the measured electrode potential. These graphs show regions of hydrogen adsorption/desorption and areas of oxygen adsorption/desorption. The response of the cell to

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8

Shi, Zhongliang 1965. "Electroless deposited palladium membranes and nanowires." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=111872.

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Hydrogen is considered to be the fuel of the future as it is clean and abundant. Together with the rapidly developing fuel cell technology, it can sustain an environmentally sound and efficient energy supply system. Developing the technologies of palladium-based membrane for hydrogen separation and palladium nanostructured materials for hydrogen sensing and hydrogenation catalysts makes the "hydrogen economy" possible. This is because these technologies will allow for commercially viable production of comparatively cheap and high-quality hydrogen, and safety of its application. Based on the ma

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9

Zhang, Zhehao. "Palladium Voltammetric Microelectrode as pH Sensor in an Micro Electrochemical Cell." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1496862043661465.

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10

Tian, Bo. "Modified electroless plating technique for preparation of palladium composite membranes." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/1243.

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11

Lui, Nicholas Hong. "Fabrication and Characterization of a Palladium/Porous Silicon Layer." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/1094.

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When porous silicon is plated with a catalytic metal, the two materials can act together as a single entity whose electrical properties are sensitive to its environment – the sensing component of an electrochemical gas sensor. Etching pores into silicon is an electrochemical process; and which type of doped silicon used is one of its key parameters. For nearly all reported porous silicon gas sensors, the silicon has been of the p-doped variety – because p-doped porous etching is better understood and the layers that result from it are more predictable – despite n-doped silicon having potential

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12

Bird, Elliott J. "Investigation of Additives for Use in Electroless Plating Solutions for Fabrication of Nanowires." BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/2125.

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This study focused on improvement of electroless plating methods by use of particular bath additives. The techniques developed here can enable us to plate very thin layers selectively on a nonconductive substrate and thus create metallized features on a nanoscale. Through the development of such bottom-up techniques this work contributes a key technology to achieving self-assembled nanocircuits. The use of additives in an electroless plating environment can modify the barriers to nucleation (or seeding) and growth. Two additives, namely 3-mercapto-1-propanesulfonic Acid (MPS) and 1,3-propanedi

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13

Saini, Alpna. "An investigation of the cause of leak formation in palladium composite membranes." Link to electronic thesis, 2006. http://www.wpi.edu/Pubs/ETD/Available/etd-050406-133412/.

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14

Takky, Driss. "Effet de la structure moléculaire en electrocatalyse : étude mécanistique de l'oxydation des isomères du butanol en milieu aqueux sur diverses électrodes de metaux nobles." Poitiers, 1987. http://www.theses.fr/1987POIT2008.

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15

Alami, Mohammed. "Métallisation des polymères par le procédé "electroless" : étude XPS des étapes préalables d'activation des surfaces." Lyon 1, 1994. http://www.theses.fr/1994LYO10300.

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Le present travail porte sur la metallisation (nickelage chimique) des polymeres par le procede electroless dit encore autocatalytique et plus particulierement sur les traitements de surface prealables a cette metallisation. Cette etude, realisee dans un premier temps sur le polycarbonate, envisage successivement le traitement de surface du polymere par voie chimique et par plasma de gaz reactifs, puis le traitement mis en uvre pour rendre la surface catalytique vis-a-vis de la reaction de reduction des ions ni#2#+. Ce dernier traitement a d'abord ete realise par le processus classique a deux

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16

Labiadh, Amor. "Etude d'un procédé d’écriture directe d'interconnexions par laser et electroless : application aux modules multipuces (MCM)." Lyon, INSA, 1994. http://www.theses.fr/1994ISAL0057.

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L' intégration à très grande échelle (VI. . SI) in"pose le développement de systèmes d'interconnexions adaptés. En effet , les boîtiers standards et les circuits imprimés limitent la densité d'intégration dégradent l'amplitude et le temps de montée de signal transnis. Le terres de prcpagation très long est la conséquence des règles de dessin et des matériaux utilisés. Ces limitations peuvent être franchies en utilisant les moodules multiples couches minces (r-o1-D) pour interconnecter les puces entre elles. La technique conventionnelle pour développer et fabriquer ces modules est la photolitho

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17

Adeniyi, Olushola Rotimi. "Ion track modification of polyimide film for development of palladium composite membrane for hydrogen separation and purification." Thesis, University of the Western Cape, 2011. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_8563_1330330939.

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<p>South Africa s coal and platinum mineral resources are crucial resources towards creating an alternative and environmentally sustainable energy system. The beneficiation of these natural resources can help to enhance a sustainable and effective clean energy base infrastructure and further promote their exploration and exportation for economics gains. By diversification of these resources, coal and the platinum group metals (PGMs) especially palladium market can be further harnessed in the foreseeable future hence SA energy security can be guaranteed from the technological point of view. The

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18

Chen, Chao-Huang. "Sulfur tolerance of Pd/Au alloy membranes for hydrogen separation from coal gas." Digital WPI, 2012. https://digitalcommons.wpi.edu/etd-dissertations/63.

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This work provides a detailed characterization study on H2S poisoning of Pd and Pd/Au alloy composite membranes to obtain fundamental understandings of sulfur poisoning phenomena and preparation of sulfur tolerant membranes. The enhancement of the sulfur tolerance by alloying Pd with Au has been confirmed by both permeation test and microstructure analysis (SEM and XRD). While pure Pd membranes exhibited the permeance decline in the presence of H2S due to both sulfur adsorption and bulk Pd4S formation, Pd/Au alloy membranes showed the permeance loss merely resulted from the surface sulfur adso

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19

Pierson, Bruce Gregory. "Chemical reactions at the interfaces of semiconductors and catalysts with solutions: I. Tin-palladium catalysts in electroless copper plating. II. Dissolution of crystalline gallium-arsenide in solutions containing complexing agents." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184673.

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The concentration of tin and palladium in catalysts used in electroless copper plating have been determined by Rutherford backscattering spectrometry with high energy (2-5) MeV ⁴He⁺. The tin:palladium ratio in the catalyst decreases when exposed to an alkaline solution. X-ray photoelectron spectroscopy has confirmed this result and has shown the palladium in the catalyst is present as palladium metal and the tin is present, probably as an oxidized species, to a depth of about 30 Å. Catalysts for the electroless plating of copper are obtained by the reaction of Pd(II) and Sn(II). The extent of

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20

Yun, Samhun. "Fabrication of Ultrathin Palladium Composite Membranes by a New Technique and Their Application in the Ethanol Steam Reforming for H₂ Production." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/37505.

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This thesis describes a new technique for the preparation of ultrathin Pd based membranes supported on a hollow-fiber α-alumina substrate for H₂ separation. The effectiveness of the membranes is demonstrated in the ethanol steam reforming (EtOH SR) reaction in a membrane reactor (MR) for H₂ production. The membrane preparation technique uses an electric-field to uniformly deposit Pd nanoparticle seeds on a substrate followed by deposition of Pd or Pd-Cu layers on the activated surface by electroless plating (ELP). The well distributed Pd nanoparticles allow for enhanced bonding between the

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21

Akis, B. Ceylan. "Preparation of Pd-Ag/PSS composite membranes for hydrogen separation." Link to electronic thesis, 2004. http://www.wpi.edu/Pubs/ETD/Available/etd-0430104-113019.

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22

Ayturk, Mahmut Engin. "Synthesis, annealing strategies and in-situ characterization of thermally stable composite thin Pd/Ag alloy membranes for hydrogen separation." Worcester, Mass. : Worcester Polytechnic Institute, 2007. http://www.wpi.edu/Pubs/ETD/Available/etd-042307-012951/.

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Thesis (Ph.D.)--Worcester Polytechnic Institute.<br>Keywords: composite Pd and Pd/Ag membranes, alloying, Pd/Ag barrier, intermetallic diffusion, bi-metal multi-layer BMML deposition, electroless plating kinetics, high temperature x-ray diffraction, aluminum hydroxide surface grading, porous sintered metal supports, hydrogen separation. Includes bibliographical references (leaves 279-296 ).

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23

Coulm, Jérémy. "Optimisation des traitements de surface de substrats polymères par plasma et développement de techniques de lithographie douce innovantes pour leur métallisation electroless localisée à basse et très haute résolution." Thesis, Lyon 1, 2015. http://www.theses.fr/2015LYO10034/document.

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Les dispositifs interconnectés moulés (« Molded Interconnected Devices », MID) sont constitués de supports polymères avec des pistes métalliques déposées à leur surface. Les objectifs de la thèse ont été d'optimiser les traitements de surface de polymères d'origine industrielle étudiés dans le contexte des MID pour obtenir des dépôts par métallisation electroless présentant une bonne adhérence. De plus, des procédés innovants de localisation de tels dépôts métalliques ont été développés. Durant ces travaux, la fonctionnalisation par plasma micro-ondes sous différentes atmosphères azotées et so

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24

Cuynet, Stéphane. "Etude des conditions d’élaboration d’électrodes de pile à combustible PEMFC par procédés plasma." Thesis, Orléans, 2014. http://www.theses.fr/2014ORLE2027/document.

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Émanant d’une collaboration entre le laboratoire CNRS du GREMI et le CEA le Ripault, l’objectif de cette thèse est de réaliser une étude exhaustive sur les conditions d’élaboration des électrodes de pile à combustible PEMFC par procédés plasma, dont l’enjeu est d’améliorer l’activité électro-catalytique du catalyseur employé qu’est le platine (Pt). A même quantité, la répartition du platine sur son support se révèle être un critère déterminant sur les performances délivrées par les PEMFCs. De cette observation, plusieurs axes de recherche ont été proposés et chacun d’entre eux a permis d’obten

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25

Rushforth, Andrew William. "The transport properties of two dimensional electron gases in spatially random magnetic fields." Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342029.

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26

BONIFACIO, RAFAEL N. "Estudo e desenvolvimento de conjuntos membrana-eletrodos (MEA) para célula a combustível de eletrólito polimérico condutor de prótons (PEMFC) com eletrocatalisadores à base de paládio." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10597.

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Made available in DSpace on 2014-10-09T12:42:20Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T13:59:42Z (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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27

Kim, Yeong Ho. "Chromium-free consumable for welding stainless steel corrosion perspective /." Columbus, Ohio : Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1133285376.

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28

Coche, Liliane. "Préparation et étude électrochimique d'électrodes modifiées par des films de polymères rédox : application à la catalyse électrochimique rédox." Grenoble 1, 1987. http://www.theses.fr/1987GRE10046.

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Preparation d'electrodes de platine, palladium et rhodium modifiees par des films de polypyrrole et de poly (pyrrole-crologene). Application a la reduction electrochimique en milieu acetonitrile du dibromo-1,2 diphenyl-1,2 ethane

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29

Ourari, Ali. "Étude de deux réactions d'électrocatalyse : hydrogénation électrocatalytique sur des films de polymères contenant des microparticules de métaux nobles et activation de l'oxygène par des complexes Mn(III) - bases de Schiff." Université Joseph Fourier (Grenoble ; 1971-2015), 1995. http://www.theses.fr/1995GRE10171.

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Ce travail est relatif a l'etude de deux reactions d'electrocatalyse. La premiere partie concerne la mise au point de cathodes moleculaires, realisees par l'inclusion de microparticules de metaux nobles dans des films de polypyrrole fonctionnalise et a leur application en hydrogenation electrocatalytique. L'etude de l'hydrogenation de deux substrats test, le limonene et la carvone, a montre qu'il est possible d'orienter la selectivite de ces electrodes modifiees selon la nature du metal incorpore (pt, pd ou rh). Le resultat le plus significatif est que l'incorporation dans le meme film de poly

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30

Johansson, Anders. "Template-Based fabrication of Nanostructured Materials." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7364.

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31

Bonifacio, Rafael Nogueira. "Estudo e desenvolvimento de conjuntos membrana-eletrodos (MEA) para célula a combustível de eletrólito polimérico condutor de prótons (PEMFC) com eletrocatalisadores à base de paládio." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/85/85134/tde-09012014-144413/.

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Sistemas de PEMFC são capazes de gerar energia elétrica com alta eficiência e baixa ou nenhuma emissão de poluentes, porém questões de custo e durabilidade impedem sua ampla comercialização. Nesse trabalho foi desenvolvido um MEA com eletrocatalisadores à base de paládio. Foram sintetizados e caracterizados eletrocatalisadores Pd/C, Pt/C e Ligas PdPt/C com diferentes razões entre metais e carbono. Foi realizado um estudo da razão entre ionômero de Nafion e eletrocatalisador para formação de triplas fases reacionais de máximos desempenhos, criado um modelo matemático para transpor esse ajuste p

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32

Nemra, Ghinwa. "Comportement electrochimique de nouveaux complexes a liaison pd-pd et pt-pd stabilises par des ligands bidentates ph : :(2)pch::(2)pph::(2)." Strasbourg 1, 1986. http://www.theses.fr/1986STR13055.

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L'etude des proprietes redox d'une vingtaine de complexes mono-, di-, tri- et tetranucleaires du palladium et du platine a ete effectuee par des methodes electrochimiques (electrode a disque tournant, voltamperometrie cyclique et coulometrie) associees a des methodes spectroscopiques (spectrophotometrie d'absorption electronique, rpe et rmn). Les differents mecanismes des reactions redox ont ete etablis en fonction de la nature des metaux et des ligands dans le complexe. On montre qu'on peut modifier de maniere controlee les potentiels d'oxydoreduction et la reversibilite des transferts de cha

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33

yeh, hui chen, and 葉慧君. "Preparation of Platinum —Palladium alloy Nanostructured Electrodes." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/58776624795881723392.

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碩士<br>南台科技大學<br>化學工程系<br>92<br>Pt — Pd alloy, Pt, and Pd nanoparticles were synthesized in reverse micellar solutions, employing H2PtCl6/Pd(NH3) 4Cl2 as the precursors, N2H5OH as the reductant, water as the dispersion phase, sodium di-2-ethylhexyl sulfosuccinate (AOT) as the surfactant, and isooctane as the continuous phase. The size of the resultant nanoparticles, which depends on the molar ratio of water to AOT, ω0, was about 10 nm at ω0 = 9 from TEM images. It was found that the composition of the Pt — Pd alloy nanoparticles had no effect on average particle size. The nanostuctur

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34

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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35

Wang, Chueh-Han, and 王覺漢. "Electrochemical Sensing Performance of Graphene/Palladium/Ionic liquid Nanocompositie Electrodes." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/47056651713935006026.

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碩士<br>國立中央大學<br>材料科學與工程研究所<br>100<br>In this study, we use graphen-based and multiwall carbon nanotubes-based(MWCNT) materials as electrochemical sensing electrode to detect ascorbic acid(AA), dopamine (DA) and uric acid (UA). In order to enhance sensitivity and selective, nano-sized Pd catalyst particles are uniformly dispersed on both the carbon supports using a supercritical fluid deposition techniquein in which the MWCNT/Pd electrode shows higher detection current than that of the Graphene/Pd electrode. Besides Pd NPs, IL also utilized for application, the detection sensitivity of the Grap

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36

Yang, Rong-Feng, and 楊榮烽. "Electrochemical synthesis and characterization of palladium nanoparticles, polyaniline / palladium nanoparticles, and NDGA / palladium nanoparticles film modified electrodes and their electrocatalytic properties." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/3d8ux6.

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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>PartⅠ:Palladium nanoparticles(nano Pd) film modified glassy carbon electrode (GCE) was fabricated by using electro-deposition method from 0.5M sulfuric acid containing 10-3M potassium tetra chloro palladate (III). To examine the surface morphological analysis, the nano Pd film was electrochemically deposited on transparent semiconductor indium tin oxide (ITO) electrodes for scanning electron microscopy (SEM),atomic force microscopy (AFM) and x-ray diffraction studies (XRD).From the SEM and AFM analysis,it was observed that the deposited palladium nanoparticle

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37

Arenz, Matthias [Verfasser]. "Model electrodes for electrocatalysis : Ultrathin palladium films on Pt(111) / vorgelegt von Matthias Arenz." 2002. http://d-nb.info/966390350/34.

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38

Cheng, Yu-Shun, and 鄭鈺舜. "Studies on Microwave-assisted Synthesis and Pulse Electrodeposition of Palladium Nanocatalysts on Amino-Functionalized Carbon Nanotube-based Electrodes." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/32397162653610282667.

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碩士<br>元智大學<br>化學工程與材料科學學系<br>98<br>The CNTs was directly grown on microscaled carbon paper by using catalytic chemical vapor deposition. Amino-functionalization of carbon nanotubes (CNTs) attached to carbon paper (CP) has been achieved using one synthetic protocol: (i) chemical oxidation, (ii) acyl chlorination, and (iii) amidation. The amidation reaction of the carboxylic groups in oxidized CNT/CP composites enables the formation of terminal amino groups on the CNT sidewalls. The functionalized CNTs were characterized by Raman spectroscopy, X-ray photoelectron spectroscopy, and N2 adsorption.

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Chang, Jui-Lung, and 張瑞龍. "Fabrication of the p-GaN Electrode by Using the Electroless Chemical Process of Nikel-Palladium-Gold." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/p98g5y.

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碩士<br>國立虎尾科技大學<br>光電與材料科技研究所<br>101<br>In this thesis, electroless chemical Nikel-Palladium-Gold(Ni/Pd/Au) process was developed on p-GaN electrode. It is selective deposition which has cost and time saving benefit. The ohmic contact properties of p-GaN e- lectrode were studied by different Ni and Pd thickness. Au was peeling off the electrode without Pd in the tri-layer structure. Characteristic resistance of p-GaN electrode was measure by transmission line model(TLM). Comparing nitrogen and argon atmospheric annealing, which showed the former has better performance than the latter. As anneal

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Bair, Ju Shuh, and 朱恕白. "The Study of Microstructures of Palladium Electrode after Deuterium Charging." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/44631796681945842782.

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41

Pei, Hong-Yuan, and 裴宏原. "The applications of electrodeposited palladium nanoparticles on carbon fiber paper electrode." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/grrgbv.

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碩士<br>國立交通大學<br>分子醫學與生物工程研究所<br>107<br>According to the previous studies, the modification of carbon fiber paper (CFP) electrode with different metal nanoparticles demonstrates great catalytic properties toward many bioactive molecules. In this study, in order to promote the catalytic abilities of CFP, the electrodeposition of palladium nanoparticles (Pd NPs) has adopted to improve the electrochemical characteristics on the surface of CFP. The Pd-based CFP electrodes are optimized to sense or react with specified molecules. The catalytic reaction of hydrogen peroxide is explored by cyclic volt

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42

He, Min-Ching, and 何旻璟. "The Study of Electroless Palladium Plating on Low-Carbon Steel." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/93666285296346672226.

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碩士<br>逢甲大學<br>材料科學所<br>99<br>In this study, low carbon steel was coated with Pd-P film by electroless plating method. The alkaline solution containing sodium hypophosphite as reducing agent was used for plating. The amount of phosphorus deposited was varied with pH value (8.0, 9.0, 10.0, or 11.0) of electroless palladium plating solution. Microstructures and surface morphology of Pd-P films were identified by GID and FE-SEM. Corrosion resistance , microhardness and electrical conductivity of deposits were analyzed by potentiostat, Vickers microhardness tester, and four-point probe, respectivel

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Kuo, Li-Chen, and 郭娌禎. "Preparation and Characterization of Palladium Nanoactivator for Electroless Nickel Deposition." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/73700686410599094605.

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碩士<br>國立臺灣科技大學<br>材料科技研究所<br>95<br>Active colloids responsible for charge transfer and electron transfer in electroless metal bath me investigated in this study. Herein, the electrochemical analysis for the catalytic effect of Pd nanoparticles on deposition kinetic and microstructure in the electroless nickel-phosphorous bath was studied. As supported by linear sweep voltammetry (LSV), the currents for oxidation peaks corresponding to Pd nanoparticles upon increasing amount are measured to be enhanced. The result shows that Pd nanoparticles have excellent catalytic power in electroless nickel

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Guo, Ting-Wei, and 郭庭維. "Application of palladium-carbon on counter electrode of dye-sensitized solar cell." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/3yqkfm.

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碩士<br>國立東華大學<br>材料科學與工程學系<br>106<br>The study used of screen printing plate production of titanium dioxide working electrode, and the scattering layer. The experimental working electrode and the scattering layer used small particles of Degussa P25 titania powder and large particles of Degussa P200 titania powder mixed with small particle Degussa P25 titanium dioxide powder, respectively. First of all, to find the best working electrode layer, and then the scattering layer, to try different titanium tetrachloride treatment time to improve the short-circuit current density, the photoelectric con

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Yang, Ki-Long, and 楊基隆. "Hollow Silver/Palladium Triangular Nanoplate:A Novel Activator for Electroless Nickel Deposition." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/63884523943322804841.

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碩士<br>國立高雄應用科技大學<br>化學工程與材料工程系<br>97<br>Hollow Ag/Pd triangular nanoplates with uniform shells are successfully prepared by the galvanic displacement reaction, in which added Pd2+ ions react with Ag triangular nanoplates as templates. The morphology of the synthesized Ag/Pd nanostructures is observed to be that of regular triangular nanoplates with a hollow structure. The mean thickness of the side shells on hollow bimetallic nanoplates is found to be ~16.5 nm. As supported by the analysis of electrochemical quartz crystal microgravimetry, the mean deposition rate catalyzed by the prepared Ag

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Chou, Yen-I., and 周彥伊. "Study on Fabrication of Palladium Schottky Diode Hydrogen Sensors by Electroless Plating." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/87352910422372839893.

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碩士<br>國立成功大學<br>化學工程學系<br>89<br>ABSTRACT In this study, electroless plating was employed to deposit palladium film on doped epitaxial GaAs and InP films for fabrication of palladium Schottky diodes as hydrogen sensors. The effect of kind and doping concentration of substrates as well as the concentration and composition of plating bath on palladium morphology had been investigated. Furthermore, the I-V characteristics and hydrogen detection performance of Schottky diodes obtained by thermal evaporation were also compared. The experimental results revealed that the mic

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Li, Poyi, and 李柏毅. "Interfacial reactions of lead-free solders with electroless palladium on the nickel substrate." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/22944125394377238894.

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碩士<br>國立中正大學<br>化學工程研究所<br>100<br>With the miniaturization of electronic products, the plating finishing techniques can not conform to the requirement. Therefore, electroless plating finishing techniques play an important in electronic industry. Among finishing techniques, ENEPIG has many advantages and begin using widely. In this study, we used the Ni plate as substrate and then electroless Pd and immersion Au on the substrate. Therefore, the influence of Cu substrate can be neglected. Besides, Pd foils were also studied in this research. The solid-solid reaction couple and liquid-solid r

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Chen, Po-You, and 陳帛佑. "The Application of Electroless Pure Palladium Deposition for Surface Finishing on Print Circuit Boards." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/60327369628005553814.

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碩士<br>國立清華大學<br>化學工程學系<br>97<br>我們的研究主要是在於開發一項替代性的表面處理製程，以改善印刷電路板工業上傳統金薄膜之表面處理製程的缺失。這項替代製程為：在銅基板上直接沉積一層無電鍍純鈀，其可以達到降低製程成本以及複雜度的目的。　　為了檢視這項製程的效果，首先我們必須發展出一個可用的無電鍍純鈀鍍液。此鍍液的組成為：以氯化鈀作為鈀沉積層的來源，以乙二胺或檸檬酸鈉作為錯合劑，並且以甲酸鈉作為還原劑。　　由紫外－可見光譜的結果顯示，乙二胺本身的pH值對於他的錯合能力有很大的影響。如果我們把乙二胺調至酸性條件下，其質子化的胺基會使他對鈀離子的錯合能力降低。因此我們可以鍍出以置換反應為主的鈀鍍層。但如果我們把pH值保持在乙二胺原本的強鹼性條件下，則會有乙二胺－鈀離子的強錯合物產生。因此我們可以得到以自催化還原反應為主的鈀鍍層。以檸檬酸鈉作為錯合劑的鍍液系統相較於乙二胺系統有較好的穩定性，而鈀離子與檸檬酸鈉間的最佳比例為1:50。如果我們用氨水把鍍液的pH值調到6∼8，則能到較強的檸檬酸鈉－鈀離子錯合物。但若用氫氧化鈉來調整pH則無額外的錯合效果。這是因為氨水分子中所含的胺基也有錯合能力的緣故。而由實驗顯示，此系統之純還原鍍鈀液在pH=6以及65℃.時會有最好的浸鍍活性。由XRD的結果顯示，檸檬酸鈉系統的無電鍍鈀層為一多晶薄膜。但由於純置換

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Lin, Wei-Ti, and 林緯廸. "Application of Electroless Copper Plating on Photo-imageable Dielectric Material by Reactive Palladium Nanoparticles." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/ev8xr9.

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碩士<br>國立交通大學<br>理學院應用科技學程<br>106<br>Electroless-deposition Copper (E’less Cu) is one of most commend technique in electronic package industry. In this work, two step surface modification technique is applied to set up an attachable surface by using RCA-SC1 (standard clean process of semiconductor industry) or radio frequency (RF) power plasma and the 3- 2-(2-aminoethylamino) ethylamino propyl trimethoxysilane (ETAS) for PVA-Pd attach which as the catalyst of E’less deposition. Applying the catalyst agent developed in previous study and synthesized in the laboratory. Using polyvinyl alcohol (PV

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Li, Meng-Han, and 李孟翰. "Electroless Deposition of Palladium-based Alloy Membrane on an Alumina Support for Hydrogen Separation." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/58281581332870732235.

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碩士<br>國立交通大學<br>材料科學與工程學系<br>100<br>In this work, we attempt to fabricate a Pd-based alloy membrane on an alumina support via a sequential electroless deposition technique. The membrane enables the separation of hydrogen from a mixture of hydrogen and carbon dioxide at elevated temperature. We use commercial ceramic paste as a sealing material in which the debindering and sintering temperatures are identified as 600 and 1150 degree Celsius, respectively. From GC results, after proper sealing we attain desirable air tightness at 600 degree Celsius. The electroless deposition is conducted on a f

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