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Dissertations / Theses on the topic 'Core/shell synthesis'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Garlyyev, Batyr. "Synthesis and catalytic study of shell-shell, core-shell hollow gold nanocatalysts." Diss., Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/54996.

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Metal nanoparticles have a large surface area to volume ratio compared to their bulk counterparts, which makes them attractive to use as catalysts. Atoms on the surface of metal nanoparticles are very active due to their high surface energy resulting from their unsatisfied valency. First synthesis of gold nanoparticles with different shapes and bimetallic structure are explored in detail. Then an experimental method which could distinguish between the two mechanisms (homogeneous or heterogeneous) by using hollow plasmonic gold nanocatalyst is developed. Furthermore the catalytic activity of go

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2

D'Souza-Mathew, Mark. "Responsive core-shell particles : synthesis & behaviour." Thesis, University of Leeds, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614644.

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Responsive core-shell particles have attracted considerable attention over the last decade due to requirements imposed on materials to be more suited for their environment, with the provision to react accordingly when it changes. The responsive component in these cases is a polymer shell, with the core mostly introducing a static dimension, functioning as a structural support, and in some cases providing an indicator of stability. Generally, medium solvency is the key driving force for the behaviour of environmentally responsive polymer shells. To date, numerous novel techniques for the constr

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3

Jean, Deok-im. "CORE-SHELL NANOPARTICLES: SYNTHESIS, ASSEMBLY, AND APPLICATIONS." Miami University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=miami1374848575.

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4

Carroll, Kyler. "Core-Shell Nanoparticles: Synthesis, Design, and Characterization." VCU Scholars Compass, 2010. http://scholarscompass.vcu.edu/etd/2204.

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The design of core/shell nanoparticles is of great interest for a wide range of applications. The primary focus of this dissertation is on the design and optimization of two synthetic routes. The first one is an aqueous reduction method using sodium borohydride and sodium citrate. This method was extended to design two types of core/shell nanoparticles, both of which have many applications in bio-sensing, magnetic resonance imaging, and magnetically guided SERS for the identification of environmental threats. The first, Fe/Ag core/shell nanoparticles were designed using a novel one-pot method

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5

Smith, Marcus J. "ALUMINUM CORE-SHELL NANOPARTICLES: SYNTHESIS, PROPERTIES, AND APPLICATIONS." University of Dayton / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1281363438.

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6

Schwarb, Ryan Evan. "Synthesis and Characterization of Reactive Core-Shell Nanoparticles." University of Dayton / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1332256634.

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7

Cho, Sung-Jin. "Synthesis and characterization of core/shell structured magnetic nanomaterials /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.

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8

Lawrence, Katherine. "Core-shell functionalised carbon nanoparticles : synthesis, electrochemistry, and fluorescence." Thesis, University of Bath, 2013. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.577746.

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Carbon nanoparticles constitute a class of important materials that have uses in many different fields. This thesis focuses on the synthesis and surface modification of different carbon nanoparticles and each novel nanomaterial is demonstrated to have a specific sensing application. Carbon blacks play a significant role in the research that is presented herein. Emperor 2000, a commercial bulk-produced carbon black available from Cabot Corporation, is the starting material for many of the investigations. The surface of Emperor 2000 is shown to be susceptible to physisorption, through π-π stacki

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9

Gunaydin, Abdullah. "Synthesis of Polymeric Core-Shell Materials for Ion Chromatography." Thesis, Umeå universitet, Kemiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-125660.

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10

Li, He. "Synthesis and characterization of metal-carbon core-shell nanoparticles /." May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.

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11

Steger, Courtney Long. "Determinants of Core Shell Dependent Rotavirus Polymerase Activity." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/87755.

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Rotaviruses (RVs) are medically significant gastrointestinal pathogens and are a leading cause of childhood mortality in many countries. The RV RNA-dependent RNA polymerase, VP1, synthesizes RNA during viral replication only in the presence of another RV protein, VP2, which comprises the innermost core shell layer of the virion. Though these VP1-VP2 interactions are essential for RV replication, the mechanism by which the core shell regulates polymerase activity remains incompletely understood. Here, we sought to identify and characterize specific regions of both VP1 and VP2 that are requir

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12

Zhang, Zhifeng. "Bimetallic reversed core-shell nanoparticles : electrochemical synthesis, characterization and application /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?CHEM%202006%20ZHANG.

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13

Albalwi, Hanan. "The synthesis and evaluation of novel core/shell nanoparticles catalysts." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/the-synthesis-and-evaluation-of-novel-coreshell-nanoparticles-catalysts(3770bb32-32ef-4ebd-b348-f002276edf36).html.

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This thesis focuses on core/shell nanoparticle catalysts including preparation, characterization and testing performance using direct methanol fuel cell. Core/shell were prepared using noble and non-noble metals. Also some core/ shell nanoparticles supported on silica and different types of carbon were prepared as well in this thesis. Non-noble core/shell nanoparticles including novel Co/Ni, SiO2/Ni using three types of silica and novel SiO2/CoFe were prepared by a new modified sol-gel method using hydrazine in alkali media as the reducing agent to reduce metal chloride through two steps proce

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14

Wang, Kai. "II-VI Core-Shell Nanowires: Synthesis, Characterizations and Photovoltaic Applications." ScholarWorks@UNO, 2012. http://scholarworks.uno.edu/td/1533.

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The emergence of semiconducting nanowires as the new building blocks for photovoltaic (PV) devices has drawn considerable attention because of the great potential of achieving high efficiency and low cost. In special, nanowires with a coaxial structure, namely, core-shell structures have demonstrated significant advantages over other device configurations in terms of radial charge collection and cost reduction. In this dissertation, several core-shell nanowire structures, including ZnO/ZnSe, ZnO/ZnS, and CdSe/ZnTe, have been synthesized and the photovoltaic devices processed from a ZnO/ZnS cor

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15

Kumbhar, Amar Shankar. "Synthesis and characterization of metallic, core-shell and composite nanoparticles." Connect to this title online, 2009. http://etd.lib.clemson.edu/documents/1256570740/.

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16

Pellegrino, Jason S. "Synthesis of pH-responsive core-shell nanoparticles of different sizes and with different shell compositions." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/57873.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2008.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 39).<br>The endosome-disrupting and pH-responsive poly(2-diethylamino ethyl methacrylate)-core/poly(2- aminoethyl methacrylate)-shell nanoparticles could potentially increase the efficacy of transcutaneous administered vaccines and facilitate the cytosolic delivery of a wide variety of therapeutic macromolecules. One of the goals of this study was to reduce the size of these core-shell nanoparticles to improv

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17

Ban, Zhihui. "The Synthesis of Core-Shell Iron@Gold Nanoparticles and Their Characterization." ScholarWorks@UNO, 2004. http://scholarworks.uno.edu/td/83.

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Au-coated magnetic Fe nanoparticles have been successfully synthesized by partial replacement reaction in a polar aprotic solvent with about 11 nm core of Fe and about 2.5 nm shell of Au. In this work, a combination of TEM (transmission electron microscopy), XRD (X-ray Powder Diffractometry), EDS (Energy disperse X-ray spectroscopy), SQUID (Superconducting Quantum Interference Device), TGA (Thermograviometric analysis), UV-visible absorption spectroscopy and Faraday rotation were employed to characterize the morphology, structure, composition and magnetic properties of the products.

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18

Mihajlović, Ana. "Syntéza core/shell kvantových teček pro diagnostiku." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220857.

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This thesis deals with biosensors based on modified semiconductor core/shell quantum dots (QDs) for diagnosis. The work is divided into four main parts. The first one discusses the theory required for the use of QDs in bioaplications, there are described methods of synthesis, modification, application and bioconjugation of QDs. In the experimental part, CdTe/ZnS QDs with core/shell structure were prepared, in which the core was modified by MPA, GSH and TGA. In the next step, these QDs were further modified using CDI, EDC and NHS as mediators in order to increase affinity to BSA (bovine serum a

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19

Arnal, Pablo Maximiliano. "The synthesis of monodisperse colloidal core @shell spheres and hollow particles." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=981080596.

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20

Khazeni, Nasser. "Synthesis And Characterization Of Zirconium Tungstate-zirconia Core-shell Composite Particles." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615316/index.pdf.

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Thermal mismatch between different components of a system could cause of problems like residual stress induced cracking, thermal fatigue or even optical misalignment in certain high technology applications. Use of materials with customized thermal expansion coefficient is a counter-measure to resolve such problems. Zirconium tungstate (ZrW2O8) with negative thermal expansion coefficient is capable of being used in synthesis of composites with tailored coefficient of thermal expansion (CTE). In this work, the sol-gel method which had been already set up in our group was characterized and the so

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21

Burakowska, Ewelina [Verfasser]. "Hyperbranched polyglycerol core-shell architectures : synthesis of selective nanocarriers / Ewelina Burakowska." Berlin : Freie Universität Berlin, 2009. http://d-nb.info/102370370X/34.

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22

Juris, Riccardo <1980&gt. "Dye doped, core / shell silica nanoparticles: synthesis, characterization, & biotechnological applications." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4658/1/Riccardo_Juris_tesi.pdf.

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The aim of this thesis was to design, synthesize and develop a nanoparticle based system to be used as a chemosensor or as a label in bioanalytical applications. A versatile fluorescent functionalizable nanoarchitecture has been effectively produced based on the hydrolysis and condensation of TEOS in direct micelles of Pluronic® F 127, obtaining highly monodisperse silica - core / PEG - shell nanoparticles with a diameter of about 20 nm. Surface functionalized nanoparticles have been obtained in a one-pot procedure by chemical modification of the hydroxyl terminal groups of the surfactant. T

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Juris, Riccardo <1980&gt. "Dye doped, core / shell silica nanoparticles: synthesis, characterization, & biotechnological applications." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4658/.

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The aim of this thesis was to design, synthesize and develop a nanoparticle based system to be used as a chemosensor or as a label in bioanalytical applications. A versatile fluorescent functionalizable nanoarchitecture has been effectively produced based on the hydrolysis and condensation of TEOS in direct micelles of Pluronic® F 127, obtaining highly monodisperse silica - core / PEG - shell nanoparticles with a diameter of about 20 nm. Surface functionalized nanoparticles have been obtained in a one-pot procedure by chemical modification of the hydroxyl terminal groups of the surfactant. T

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24

Changyong, Lu. "Synthesis and characterization of magnetic nanocomposites and their applications study." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/457572.

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Los nanomateriales, especialmente las nanopartículas, se convierten en una de las áreas más atractivas no sólo en la investigación científica, sino también en las aplicaciones industriales. En esta tesis se ha estudiado la preparación de nanopartículas de magnetita, sus nanocompuestos relacionados y la aplicación de los nanomateriales obtenidos. Las nanopartículas core-shell de Fe3O4@SiO2 se sintetizaron mediante métodos de microemulsión inversa estándar y de microondas. Las nanopartículas obtenidas se caracterizaron con diferentes técnicas de laboratorio y se estudiaron los diferentes efecto

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25

Guan, Juan. "Synthesis and structural characterization of ZnTe/ZnSe core/shell tunable quantum dots." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/43092.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2008.<br>Includes bibliographical references.<br>Colloidal semiconductor nanocrystals or quantum dots have attracted much attention recently with their unique optical properties. Here we present a novel approach to synthesize ZnTe/ZnSe core/shell tunable quantum dots. Characterizations such as transmission electron microscopy, wavelength dispersive X-ray spectroscopy, powder x-ray diffraction are employed to give evidence for the core/shell structure. Absorption, and photoluminescence spectra demonstrate the tunability o

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26

Xu, Yang. "Synthesis and Characterization of Silica Coated CdSe/CdS Core/Shell Quantum Dots." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/29974.

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A great deal of interest has been dawn on the colloidal chemistry based semiconductor nanocrysallites, also known as quantum dots (QDs). Because of the strong quantum confinement, quantum dots have unique size-dependent optical properties, which are much more superior to the conventional organic fluorescence materials. In addition, strong chemical resistant makes inorganic semiconductor QDs ideal candidate for next-generation of bio-labels and drug delivery vehicles. This report presents a user friendly approach to synthesize high quality biocompatible CdSe QDs in aqueous solution. Size of

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27

Jovanovic, Aleksa V. "Synthesis and characterization of oil core silica shell nanocapsules for biomedical applications." [Gainesville, Fla.] : University of Florida, 2006. http://purl.fcla.edu/fcla/etd/UFE0013801.

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28

Shinde, P. N. "Synthesis of metal oxide, core-shell nanoparticles, their surface modifications and applications." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2019. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/4567.

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29

Gao, Yanling [Verfasser], and Doru C. [Akademischer Betreuer] Lupascu. "Synthesis of core-shell high-K nanoparticles / Yanling Gao. Betreuer: Doru C. Lupascu." Duisburg, 2015. http://d-nb.info/1079139990/34.

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30

Chen, Wan-tze, and 陳菀澤. "Synthesis of core-shell Raman markers." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/27758461621270957254.

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碩士<br>國立中正大學<br>化學所<br>94<br>The common method for DNA detecting is using matrix surface to bind single-stranded DNA and to capture single-stranded complementary DNA. The combinatorial DNA microarray is one of this type of detection, but it costs a lot and is very time-consuming in manufacturing. Comparing colloid nanoparticle with the combinatorial DNA microarrays, we can see the colloid nanoparticle is cheaper in producing. Consequently, we adopt the method of the colloid nanoparticle instead of the method of the combinatorial DNA microarrays. Fluorescence dyes are commonly used as optical b

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31

Tseng, Chih-Hsiang, and 曾致翔. "Synthesis of Au@TiO2 Core-Shell Nanoparticles." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/fdpr43.

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碩士<br>國立臺北科技大學<br>有機高分子研究所<br>99<br>This thesis included two parts. In the first part, we synthesized the gold nanoparticles (Au-NP) by reducing of hydrogen tetrachloroaurate (HAuCl4) by sodium thiocyanate (NaSCN) and sodium citrate (Na3-citrate). The thiocyanate ions adsorbed on Au-NP form self-assembled monolayers on Au-NP to make dispersion of Au-NP in the solution.. The size of Au-NP was as small as 4 nm. Using Na3-citrate as reducing and stabilizing reagent, the diameter of the Au-NP is about 16 to 17 nm. The second part of the thesis is to apply a one-pot hydrothermal reaction to synthes

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Liu, Yi Hsuan, and 劉憶暄. "Synthesis of Ni-NiO Core-Shell Nanoparticles." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/88809766882173900556.

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33

Lu, Yuan-Pei, and 盧元培. "Synthesis of Core-shell Nano-particulate Polyelectrolyte." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/20962616561884818923.

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碩士<br>淡江大學<br>化學工程與材料工程學系碩士班<br>104<br>In this research, we investigate polymeric particles consisting two principal constituent monomers, of which one is electrolyte with sulfonic acid group: 2-Acrylamido-2-methyl-1-propane sulfonic acid (AMPS), and the other is multi-vinyl: 1,1,1-Trimethylolpropane triacrylate (TMPTA) were successfully synthesized by photoinitiated precipitation polymerization with 2-hydroxy-2-methylpropiophenone (UV1173). Synthesis was found to be composed of two stages. The early precipitation polymerization leads to the formation of nuclei. Subsequent emulsion-assisted po

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Vaidya, Sonalika. "Synthesis and characterization of core-shell nanostructures." Thesis, 2009. http://localhost:8080/iit/handle/2074/3686.

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van, Embden Joel Leonard. "Synthesis and optical properties of CdSe core and core/shell nanocrystals." 2008. http://repository.unimelb.edu.au/10187/3225.

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The synthesis of nanocrystals is unique compared to the formation of larger micron-sizesspecies as the final crystal sizes are not much larger than the primary nuclei. As a consequencethe final outcome of a nanocrystal synthesis i.e mean crystal size, concentrationand standard deviation is almost solely determined by the end of the nucleation phase. Directingthe growth of crystals beginning from aggregates of only tens of atoms into maturemonodisperse nanocrystals requires that the governing kinetics are strictly controlled at everymoment of the reaction. To effect this task various different

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"Synthesis and plasmonic understanding of core/satellite and core@shell nanostructures." 2015. http://repository.lib.cuhk.edu.hk/en/item/cuhk-1292020.

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Ruan, Qifeng = 衛星及核殼納米結構的合成與表面等離激元特性研究 / 阮琦鋒.<br>Thesis Ph.D. Chinese University of Hong Kong 2015.<br>Includes bibliographical references.<br>Abstracts also in Chinese.<br>Title from PDF title page (viewed on 16, December, 2016).<br>Ruan, Qifeng = Wei xing ji he qiao na mi jie gou de he cheng yu biao mian deng li ji yuan te xing yan jiu / Ruan Qifeng.

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"Core-Shell Composite Nanoparticles: Synthesis, Characterization, and Applications." Doctoral diss., 2012. http://hdl.handle.net/2286/R.I.15806.

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abstract: Nanoparticles are ubiquitous in various fields due to their unique properties not seen in similar bulk materials. Among them, core-shell composite nanoparticles are an important class of materials which are attractive for their applications in catalysis, sensing, electromagnetic shielding, drug delivery, and environmental remediation. This dissertation focuses on the study of core-shell type of nanoparticles where a polymer serves as the core and inorganic nanoparticles are the shell. This is an interesting class of supramolecular building blocks and can "exhibit unusual, possibly un

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Huang, Te-pei, and 黃德沛. "Synthesis of Core/Shell Microspheres of Oxide/Metal." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/21461660692066783912.

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碩士<br>雲林科技大學<br>材料科技研究所<br>98<br>This study would focus on the preparation and production of oxide/metal core-shell structure sphere as its objective, while the experiment can be found into two major parts. For the first part, it will employ sol-gel method to prepare and produce monodispersed silica submicrospheres, and then the oxide is taken as the core to synthesize silica/titanium dioxide core-shell structure sphere. In addition, it would investigate the impact of diverse manufacturing, resorting to the optimal manufacturing as XRD, FIB, TEM/EDS, and TGA/DSC for analysis so as to explore s

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Yi, i.-Ling Liu, and 劉怡伶. "Synthesis,Characterization of Magnetite/polystyrene core-shell nanoparticle." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/27xs32.

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KE, Jiin-HE, and 柯錦和. "Synthesis and Properties of Magnetite/ Polypyrrole Core-Shell Nanoparticles." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/05473615112172685323.

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碩士<br>國立臺灣大學<br>高分子科學與工程學研究所<br>93<br>The syntheses of stabilizer, 12-phosphonic acid-dodecyl-2-bromo-2-methyl-propionic ester (PDBME), have been developed. We modified the Fe3O4 nanoparticles by using PDBME and then made the particles able to be an initiator to process polymerizing. Because of the characteristic of PDBME, the Fe3O4 particles would disperse stable in CHCl3, and we utilized the functional group of PDBME to process ATRP, and 1H-NMR and 31P-NMR were used to demonstrate the PDBME. The growing of poly(t-butyl acrylate) (PtBA) on Fe3O4 surface was processing successfully under t

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Wu, Chia-Jung, and 吳佳容. "Additives-assisted synthesis of gold-silver core-shell nanoparticles." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/57r4pz.

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碩士<br>淡江大學<br>化學學系碩士班<br>102<br>Gold nanoparticles (NPs) were usually used as the seeds in the preparation of Au-Ag NPs in the solutions of polymer and surfactants by wet chemical methods. In contrast to cationic surfactants, anionic sodium dodecyl sulfate (SDS) has been seldom used at room temperature in additional to photochemical and physical methods. Mechanism of the growth of the silver shell on gold NPs was investigated in SDS solutions. Silver deposition on Au NPs was achieved by reducing silver nitrate with ascorbic acid. EDTA is used as both an additive and the chelating agent to prev

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Hsu, Chao Wei, and 徐肇蔚. "Synthesis and characterization of Cu-Ni core-shell nanowires." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/u22gj5.

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碩士<br>國立清華大學<br>材料科學工程學系<br>103<br>Due to it’ s good conductivity and low-cost property, copper (Cu) is often used as interconnect and flexible transparent conductive film material with the introduction of nano-processing. Therefore, many studies try to analyze the properties of copper in nanoscale, such as nanowires (NWs). Twin is a common microstructure in metals. It has been demonstrated that nano-twinned copper have high mechanical strength, good conductivity, and moreover, superior electromigration resistance. In our previous study, we have successfully fabricated Cu NWs with high density

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Chen, Kang-Chi, and 陳康祺. "Synthesis and Characterization of V2O5/Pt Core-Shell Nanowires." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/45889826128376957647.

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碩士<br>中國文化大學<br>化學工程與材料工程學系奈米材料碩士班<br>101<br>In our experiment, pure V2O5 1-D nanowires have been synthesized by thermal evaporation. The nanostructures were successfully synthesized with horizontal tube furnace by using V2O5 powder. Next the core-shell Pt/V2O5 nanowires were by subsequent atomic layer deposition (ALD) of Pt. We were using (methylcyclopentadienyl)-trimethylplatinum (MeCpPtMe3) as precursor and designing three parameter 50, 100 and 150 ALD cycle. The morphology of 1-D nanostructures was analyzed by field emission scanning electron microscope (FESEM). It is shown that nanostruct

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Chou, Chin-Hui, and 周菁慧. "Synthesis and Properties of Platinum/ Polystyrene Core-Shell Nanoparticles." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/36x5f2.

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碩士<br>國立臺北科技大學<br>有機高分子研究所<br>95<br>In this research, we design a series of organic interfaces and link molecular, SH base group that this molecular includes one end and can absorb chemistry with platinum nanoparticles; another end can as initial alkyl bromide of ATRP of polyreaction, link two sense alkyl spacer of base. The molecule absorbs and assembles on the surface in Pt particle, make use of it in order to disperse the platinum nanoparticlse in the organic solvent, for instance toluene, THF, chloroform, etc.. It is to regard NaBH4 as the reducing agent, reduce H2PtCl6•xH2O into a platinu

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Ghosh, Chaudhuri Rajib. "Synthesis and Characterization of S@AgBr Core-Shell Nanoparticles." Thesis, 2009. http://ethesis.nitrkl.ac.in/1385/1/Thesis-for_upload.pdf.

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Core–shell nanoparticles are gaining lots of importance recently due to their exciting applications in different fields like biomedical, pharmaceutical, electronics, catalysis etc. They also show new properties than the single materials when coated one material with other. In this report we studied the preparation and growth kinetics of sulfur nanoparticles as a core in aqueous surfactant medium and then the particle was coated with AgBr. The main objective of this project is to study the effects of different parameters like types of acids, surfactants, reactant concentration, temperature, and

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Ray, Minaketan. "Synthesis and characterization of AgBr/SiO2 core/shell nanoparticles." Thesis, 2012. http://ethesis.nitrkl.ac.in/4461/1/Thesis_18.12.12-pdf-_MKRAY.pdf.

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In the recent years there is tremendous demand of smaller devices over the bigger one because of its efficiency and portability. The nanoparticles are the building blocks to make the very small devices like small robot, micro-motor, small chips, microprocessor, sensor or carrier for drugs or storage for fuel cell etc. So small is not only beautiful but also powerful. To improve the property of nanoparticle, composite or core/shell nanoparticles are synthesized. The core-shell nanoparticles are used in the field of biotechnology for drugs carrier, in electronic as semiconductor materials, in f

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Ye, Siou-hong, and 葉修宏. "Synthesis of Silica Oxide-Gold Core-Shell Microspheres and Assembly." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/k647y6.

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碩士<br>國立雲林科技大學<br>材料科技研究所<br>105<br>This study would hope to achieve two goals. First, the preparation of SiO2/Au core-shell structure, the second is the silica spheres self-assembly. In the first part of the first stage using the sol gel method to prepare the same size, about 400nm size of silica spheres. In the second stage, making the surface of the silica spheres to have -NH2 with molecular weight of (10000, 60000, 70000) polyethyleneimine, and then the control solution became an isoelectric point environment with a pH of about 8 to optimize the silica spheres bound to gold nanoparticles.

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Huang, Chang-Hao, and 黃健豪. "Synthesis of Au@TiO2 and Ag@TiO2 Core/Shell Nanocomposite." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/08850265065044545722.

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碩士<br>國立中正大學<br>化學所<br>94<br>This study investigated the phase transfer of aqueous Au nanoparticles and Ag nanoparticles into the organic solution by adding different surfactant and ionic liquid and thereafter the preparation of Au@TiO2 and Ag@TiO2 nanocomposite materials.To prepare Au@TiO2 and Ag@TiO2 nanoparticles, metal nanoparticles have to be firstly prepared. Metal nanoparticles are usually produced in aqueous solution, due to the water-soluble nature of metal salt. In addition, synthesis of different sized and shaped nanoparticles in aqueous solutions is easier than that of in organic s

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Lin, Liang-Dah, and 林良達. "The Synthesis of One-Dimensional Core-shell Nanostructures of selenium." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/74886893041877802884.

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碩士<br>國立中正大學<br>化學所<br>94<br>We demonstrated a simple chemical method for preparing suspended Se nanorods within carboxymethylcellulose (CMC) aqueous solution. The shapes of thus prepared nano-Se can be either spherical or rod-like. In the first part of my thesis, we showed that the mean aspect ratios of the 1D-nanoSe can be controlled in such synthetic system by varying the reaction time between the selenium precursor and the reducing agent. The diameters of the 1D-nanoSe were ca. 20 nm and the mean aspect ratios of the particles were ranging from 4.6±1.2 to 96.7±21.3. The growth mechanism fo

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HUANG, YEN-TANG, та 黃彥棠. "Synthesis and Characterization of Bi2S3/α-Bi2O3 core-shell nanowires". Thesis, 2014. http://ndltd.ncl.edu.tw/handle/736x38.

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碩士<br>國立東華大學<br>材料科學與工程學系<br>102<br>The Bi2S3/α-Bi2O3 heterostructured nanowires were synthesized by using vapor transport process and followed by a hydrothermal process on Al2O3(0001).The effect of growth time on surface morphology, chemical compositions and optical property of samples have been examined. FE-SEM images show that the diameter of heterostructured nanowires increases with growth time. XRD results show that the heterostructured nanowires consists of α-Bi2O3, Bi2S3 and Bi. XPS results confirm the surface composition of sample are: α-Bi2O3, Bi2S3 and Bi. TEM images show that the th

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