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Dissertations / Theses on the topic 'Palladium-Titanium'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

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1

Sesay, Simon J. "Asymmetric catalysis using titanium and palladium." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/11076.

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This thesis describes, in detail, the synthesis of novel heterobidentate ligands. These ligands were subsequently used in palladium catalysed allylic substitution reactions to synthesise enantiomerically enriched alkylated products. The thesis also describes novel approaches to asymmetric catalysis, in particular asymmetric epoxidation derived from Katsuki-Sharpless methodology. Chapter 1 - This chapter reviews the literature, discussing the significant synthetic advancements in asymmetric catalysis in the past 10-15 years. Chapter 2 - This chapter describes in detail the synthesis of new hete

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2

Wright, Luka. "Unsymmetrical, monoanionic pincer ligands for titanium and palladium." Thesis, University of Leicester, 2015. http://hdl.handle.net/2381/31842.

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In this thesis, the synthesis, characterisation and coordination chemistry of a series of related [N,NPyN] and [N,NPy O] monoanionic pincer ligands, together with some reaction chemistry of the metal complexes is described. In Chapters 2 and 3, the synthesis and characterisation of novel [N,NPyO] and [N,NPyN] pro-ligands and reaction chemistry with palladium(II) starting materials to form square planar complexes of the type [(N,NPyX)PdL] (X = O, NH, L = OAc, Cl, I, MeCN, Py, Ph) is described. The pro-ligands and the metal complexes have been characterised by a combination of multinuclear NMR s

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3

Apte, Sandeep D. Apte Sandeep D. "Part I. Palladium-catalyzed silylstannylations of diynes dynamic behavior and funtionalization of helically chiral dienes. Part II. Palladium-catalyzed silylstannane additions to epoxyalkynes and their titanium(III)-mediated cyclizations /." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1158609567.

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4

McKenna, Fiona-Mairéad. "Selective hydrogenation of actylene in ethylene streams using ligand modified palladium on titania." Thesis, University of Aberdeen, 2010. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=167029.

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The performance of supported palladium catalysts that had been modified with triphenyl phosphine, diphenyl sulfide and triphenyl amine was compared to unmodified Pd/TiO2 catalysts. It was found that the selectivity was superior to the unmodified catalysts with or without the use of carbon monoxide as a modifier. Ethylene selectivities in excess of 70 % at conversion levels greater than 80% were observed on the modified catalysts under conditions of excess hydrogen which compares extremely well with other catalysts found in the literature. The modifier was found to significantly reduce the numb

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5

Mazwi, Sive. "Hydrogen storage in Ti-based coatings and Ti6Al4V alloy." University of the Western Cape, 2016. http://hdl.handle.net/11394/5319.

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>Magister Scientiae - MSc<br>Hydrogen has been regarded as an ideal energy carrier for future, it can be stored as a liquid in cryogenic tanks, a gas in high pressure cylinders and as solid in metal hydrides. Hydrogen storage in metal hydrides is of research interest because hydrides often have high energy density than gas or liquid hydrogen and are relatively safe. Ti and Ti alloys are promising hydrogen storage material because they have high affinity for hydrogen, light in weight and react reversibly with hydrogen. This work aims to investigate the hydrogen storage capacity of CP- Ti and Ti

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6

Shahreen, Laila. "Palladium Doped Titanium Dioxide Nanofiber Based Catalytic Support To Reduce Nitric Oxide Over Carbon Monoxide Gas." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1375362737.

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7

Ochola, Rispah Janet. "The preparation and study of photocatalysts : from core-shell palladium-titanium dioxide nanoparticles to iridium(III) complexes." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/63140.

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8

Perkins, Neil. "Reactivity of Pd single crystal, alloy and model catalyst surfaces." Thesis, University of Reading, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369758.

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9

Apte, Sandeep D. "Part I. Palladium-catalyzed silylstannylations of diynes: dynamic behavior and funtionalization of helically chiral dienes Part II. palladium-catalyzed silylstannane additions to epoxyalkynes and their titanium(III)-mediated cyclizations." The Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=osu1158609567.

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10

Ly, Bao Khanh. "Hydrogénation de l'acide succinique en phase aqueuse pour l'obtention sélective de 1,4-butanediol." Thesis, Lyon 1, 2013. http://www.theses.fr/2013LYO10053.

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Le but du projet est d’hydrogéner l’acide succinique en phase aqueuse à 160°C, sous 150 bar d’hydrogène pour obtenir sélectivement le 1,4-butanediol (BDO) en utilisant des catalyseurs x%Re-2%Pd/TiO2. Les catalyseurs monométalliques au palladium permettent d’obtenir sélectivement le produit intermédiaire : la γ-butyrolactone et très peu de BDO est obtenu. Leur activité catalytique est fonction de la dispersion de la phase métallique. L’addition de rhénium aux catalyseurs monométalliques au palladium permet de poursuivre la réaction jusqu’à l’obtention du BDO. Nous avons d’abord essayé deux méth

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11

Magogodi, Steven Mothibakgomo. "Hydrogen storage capacity of the Ti-Pd multilayer systems." University of the Western Cape, 2020. http://hdl.handle.net/11394/7711.

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>Magister Scientiae - MSc<br>Hydrogen has high energy density and it is regarded as the future energy carrier. Hydrogen can be stored as a gas in high-pressure cylinders, as a liquid in cryogenic tanks and as a solid in metal hydrides. The storage of hydrogen in gas and liquid form has many limitations. Light metal hydrides show high energy density and are a promising and more practical mode of hydrogen storage. In particular, titanium and its alloys are promising metal hydrides for hydrogen storage due to their high affinity to hydrogen. The aim of this study is to investigate the effect of t

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12

Bongers, Marian David Verfasser], Astrid [Akademischer Betreuer] Pundt, Astrid [Gutachter] Pundt, et al. "In situ studies on palladium/rutile titanium dioxide exposed to low pressure hydrogen gas environments / Marian David Bongers ; Gutachter: Astrid Pundt, Michael Seibt, Hans Christian Hofsäss, Reiner Kirchheim, Vasily Moshnyaga, Martin Wenderoth ; Betreuer: Astrid Pundt." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2018. http://d-nb.info/1171521464/34.

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13

Tebben, Gerd-Dieter. "Intramolekulare Titan-vermittelte Aminocyclopropanierung als Zugang zu N-Benzyl-4-alkyl-2-azabicyclo[3.1.0]hexanen Synthese von tri- und tetrasubstituierten Alkenen durch Palladium-katalysierte Kreuzkupplung von Alkin-Titan-Komplexen /." Doctoral thesis, [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=973961708.

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14

Korkis, Layal. "Nanoparticles’ effect in an in vitro whole blood model." Thesis, Uppsala universitet, Institutionen för immunologi, genetik och patologi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-392201.

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Nanoparticles have been used in industry and in medicine due to their properties which give them beneficial uses. This usage of the nanoparticles has risen the question about how harmful they are to the human body, the connection between the exposure to nanoparticles, and many diseases that occur in the body. Methods This study focused on the effect of nanoparticles in a whole human blood loop model. The blood was incubated with Silica, Titanium dioxide and Palladium particles in heparinized loops without any anticoagulants added. The blood’s cell count was analyzed with a cell counter and the

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15

Ibrahim, Mohamad. "Étude de la réactivité du dimère hétéronucléaire PdTi avec le monoxyde de carbone et du titane atomique avec CO et H2O en matrice d’argon et par spectroscopie vibrationnelle FTIR Spectra and structures of the Pdm-CO complexes: An infrared matrix isolation and density functional study Infrared Spectroscopy and Density Functional Theory Investigations of PdTi Heterodimer Reactivity with Carbon Monoxide Isolated in Solid Argon." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS643.

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Le sujet de cette thèse est l'étude de la réactivité de métaux de transition avec les ligands CO et H2O en utilisant la technique d’isolation en matrices d’argon à 12 K et la spectroscopie infrarouge à transformée de Fourier. Nous avons étudié la réaction du dimère hétéronucléaire PdTi avec le CO et nous avons pu identifier les molécules PdTi-CO, TiPd-CO, PdTi(CO)2 et PdTi(CO)3. L’irradiation dans le visible permet de convertir la molécule PdTi-CO avec un CO lié au Ti à la molécule TiPd-CO avec un CO lié au Pd. Dans la deuxième partie de cette thèse nous avons étudié la réaction du titane atom

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16

Chen, Jiann-Fu, and 陳建富. "Interfacial Reactions of Titanium and Palladium Thin Films on Silicon." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/47007147685537974512.

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17

WANG, WEI-CHEN, and 王瑋晨. "Characterizations and Applications of Green Synthesized Palladium Coated Titanium Dioxide Nanotube Arrays." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/u6d72t.

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碩士<br>東海大學<br>環境科學與工程學系<br>105<br>In this study, titanium dioxide nanotube arrays (TNAs) electrode was successfully synthesized by anodic oxidation etching method. As well as the use of green synthetic technology to add reducing agent tea or coffee to reduce metal palladium from palladium chloride. Synthesis of Palladium Titanium Dioxide Nanotube Arrays (Pd/TNAs) was conducted by Microwave Hydrothermal Method after the metal palladium was reduced。 In order to identify the surface structure, the light absorption and elemental composition, TNAs and Pd/TNAs were characterized by scanning electron

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18

Bongers, Marian David. "In situ studies on palladium/rutile titanium dioxide exposed to low pressure hydrogen gas environments." Doctoral thesis, 2018. http://hdl.handle.net/11858/00-1735-0000-002E-E4F7-A.

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19

Jun-YingLin and 林俊穎. "Effects of Palladium / Titanium hydride on Hydrogen Kinetic and Thermodynamic Abs/Des-orption Performance of Magnesium-based Hydrogen Storage Alloy." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/r7k3sv.

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碩士<br>國立成功大學<br>機械工程學系<br>104<br>Nowadays, the great majority believe that there is great potentiality in hydrogen storage alloy storing hydrogen by physical and chemical absorption. MgH2 has high capacity and unexpansive. However, its operation temperature is high and owns poor kinetics. Currently, scientists find that adding transition elements can improve the properties of hydrogen storage alloy. In this research, outstanding improvements of kinetic and thermal properties are given by addition of Palladium and Titanium hydride to Magnesium-based alloy. The research involves experiment and

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20

Lai, Hsiao Fang, and 賴曉芳. "A Study of Application for Nanomaterial on Titanium Dioxide. Part I. Application of Doped Gold Nanoparticles/Titanium Dioxide for Dye-sensitized Solar Cells. Part II. Promotion Effect of Palladium Oxide on TiO2 Sensing of Gaseous Formaldehyde." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/sa6ven.

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博士<br>靜宜大學<br>應用化學系<br>102<br>Part I:This study prepared gold nanoparticles solution, which was made from the reduction of H2AuCl4 solution by sodium citrate via chemical reduction method. The Au/P25-P90 nanocomposites was obtained by add gold nanoparticles solution in two kinds of commercial titanium dioxide P25 and P90 powders by a simple impregnation method. The titanium dioxide work electrode of Au/P25-P90 was prepared in doctor blade method, then it was soaked into N719 dye, and optimal time of the soak is 12 hours. The photoelectric conversion efficiency of P25-P90 electrode was 4.48%, a

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21

Mukri, Bhaskar Devu. "Synthesis, Structure and Catalytic Properties of Pd2+, Pt2+ and Pt4+ Ion Substituted TiO2." Thesis, 2013. http://etd.iisc.ernet.in/2005/3346.

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After introducing fundamentals of catalysis with noble metal surfaces especially Pt metal for CO oxidation and subsequent developments on nano-crystalline Pt metals supported on oxide supports, an idea of Pt ion in reducible oxide supports acting as adsorption sites is proposed in chapter 1. Idea of red-ox cycling of an ion in an oxide matrix is presented taking Cu ion in YBa2Cu3O7 as an example. Noble metal ions in reducible oxides such as CeO2 or TiO2 acting as adsorption sites and hence a red-ox catalyst was arrived at from chemical considerations. Among several reducible oxide supports, Ti

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22

Gensini, Martina. "Synthesis of Potentially Biologically Active Cyclopropane- and Spirocyclopropane-annelated Oligoazaheterocycles." Doctoral thesis, 2003. http://hdl.handle.net/11858/00-1735-0000-0006-AD46-E.

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23

Ntholeng, Nthabiseng. "Investigating the effect of gold-palladium bimetallic nanoparticles on TiO2 and the catalytic activity in CO oxidation." Thesis, 2013. http://hdl.handle.net/10539/12693.

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A thesis submitted in fulfilment of the requirements for the degree of Master of Science in the Faculty of science, Department of Chemistry University of the Witwatersrand Private Bag X03 Wits 2050<br>In recent years, studies have shown that supported Au catalysts have high activity for CO oxidation at low or ambient temperatures. However, the activity of these catalysts is dependent on a lot of synthesis conditions as reproducibility of small sized gold particles is hard. In this study supported Au catalysts were prepared via deposition precipitation-method (DP). The small sized Au par

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