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Dissertations / Theses on the topic 'Sol-Gel Methods'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Hant, Steven Michael. "Characterization and fabrication of nanoporous materials by template-directed sol-gel methods." Thesis, University of Southampton, 2008. https://eprints.soton.ac.uk/64302/.

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This research project focussed on developing synthetic strategies to fabricate a variety of nanoporous materials ranging the full range of pore sizes from micro to macro using template assisted sol-gel routes. Both colloidal crystals and surfactant self assemblies were employed as templates. Initial studies focussed on the fabrication of macroporous titano/alumino and tinsilicate materials by dip infiltrating colloidal crystal templates with sol-gel mixtures. The sols were prehydrolysed in order to ensure atomic scale homogeneity of the final material. These materials were subsequently charact

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2

D’Agostino, Simone <1981&gt. "Preparation of new crystal forms via photochemical, mechanochemical and sol-gel methods." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4650/1/dagostino_simone_tesi.pdf.

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This work of thesis involves various aspects of crystal engineering. Chapter 1 focuses on crystals containing crown ether complexes. Aspects such as the possibility of preparing these materials by non-solution methods, i.e. by direct reaction of the solid components, thermal behavior and also isomorphism and interconversion between hydrates are taken into account. In chapter 2 a study is presented aimed to understanding the relationship between hydrogen bonding capability and shape of the building blocks chosen to construct crystals. The focus is on the control exerted by shape on the organi

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D’Agostino, Simone <1981&gt. "Preparation of new crystal forms via photochemical, mechanochemical and sol-gel methods." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amsdottorato.unibo.it/4650/.

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This work of thesis involves various aspects of crystal engineering. Chapter 1 focuses on crystals containing crown ether complexes. Aspects such as the possibility of preparing these materials by non-solution methods, i.e. by direct reaction of the solid components, thermal behavior and also isomorphism and interconversion between hydrates are taken into account. In chapter 2 a study is presented aimed to understanding the relationship between hydrogen bonding capability and shape of the building blocks chosen to construct crystals. The focus is on the control exerted by shape on the organi

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4

Altındiş, Mustafa Güden Mustafa. "CaP coating of porous sintered Ti6Al4V powder compacts using biomimetic and sol-gel methods." [s.l.]: [s.n.], 2006. http://library.iyte.edu.tr/tezler/master/malzemebilimivemuh/T000544.pdf.

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5

Mitchell, Matthew Benedict David. "The characterisation of forsterite (Mgâ†2SiOâ†4) powders prepared by solution and sol-gel methods." Thesis, University of Sheffield, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312803.

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6

Johansson, Sofie. "Solution based methods for synthesis of tin and zinc; wires and thin films." Thesis, Uppsala universitet, Oorganisk kemi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-169865.

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In this work two different solution based methods have been used for synthesis ofoxide-wires and homogeneous heterometallic oxides of transparent conductingmaterials. The first method used is an aqueous chemical growth (ACG) method for synthesis ofmicrorods and nanowires of zinc oxide and tin dioxide useful for detection of toxicgases. No desired films have been obtained but some new interesting structures withnew surfaces at the a,b-plane, especially for zinc oxide where a jagged surface hasbeen observed. For low metal-concentrations of zinc, a band-like structure with 120 °angles has been ob

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7

Hamadanian, Khozani M., A. Reisi-Vanani, P. Razi, and S. Hoseinifard. "Study of Photocatalytic Behavior of Photochemical Doped TiO2 Nanoparticles with In-V Synthesized by Sol-Gel and Hydrothermal Methods." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35281.

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Indium- vanadium doped with different molar percent (0.05-1%) was prepared by photochemical reduction method on pure TiO2 nanoparticles synthesized by sol –gel and hydrothermal process. XRD, FT-IR, TEM, SEM and EDX analysis were done for characterized nanoparticles and methyl orange (MO) was used as an environmental pollutant to verify photocatalytic effect of synthesized particles under visible and UV lamps. Result of tests was showed that In-V doping restrain from crystal growth, that only hydrothermal TiO2 particles with binary doped 0.2% molar of In-V can improve photocatalytic activi

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8

Bazin, Nicholas James. "Synthesis by sol-gel methods of polymer-modified silica thin films for applications in internal confinement fusion (ICF)." Thesis, Brunel University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299111.

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9

Heley, James Robert. "The production and characterisation of ultrafine low density silica powders derived from silicon tetrachloride using sol-gel methods." Thesis, University of Sheffield, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245715.

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10

Chen, Yongjun. "The role of preparation conditions in sol-gel methods on the synthesis of nanostructured photocatalytic films for water treatment." Cincinnati, Ohio : University of Cincinnati, 2007. http://www.ohiolink.edu/etd/view.cgi?ucin1190408817.

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Thesis (Ph.D.)--University of Cincinnati, 2007.<br>Advisor: Dionysios D. Dionysiou. Title from electronic thesis title page (viewed Feb. 18, 2008). Keywords: TiO2, photocatalysis, films, sol-gel, nanostructure, water treatment. Includes abstract. Includes bibliographical references.

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CHEN, YONGJUN. "THE ROLE OF PREPARATION CONDITIONS IN SOL-GEL METHODS ON THE SYTHESIS OF NANOSTRUCTURED PHOTOCATALYTIC FILMS FOR WATER TREATMENT." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1190408817.

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12

Matsukevich, I. V., and A. I. Klyndyuk. "Processes Occurring at Preparation of Ca3Co4O9+ Ceramics by Means of Different Solution Methods, and Its Properties." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35255.

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By means of complex independent methods the processes occurring at preparation of Ca3Co4O9+ ceram-ics using solid-state reactions and different solution (citrate, polymeric and sol-gel) methods were investi-gated. The crystal structure and microstructure, oxygen stoichiometry, thermal expansion, electrical con-ductivity and thermo-EMF of the samples were studied and values of their power factor were calculated. It is shown that usage of solution methods let us obtain more dense and fine-grained ceramics, which is char-acterized with higher values of electrical conductivity and power factor. Wh

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13

Viscarelli, Davide. "Comparison of photocatalyst immobilization methods in optical fiber reactors using radiometric and chemical performance as evaluation criteria." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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Lo scopo di questo lavoro è stato quello di analizzare e di ottimizzare la degradazione fotocatalitica del blu di metilene, partendo innanzitutto da un’accurata ricerca bibliografica mirante all’individuazione di possibili migliorie da apportare ad alcuni dei fattori partecipanti al processo. Le modifiche apportate a tali fattori sono state, inoltre, testate sperimentalmente sia dal punto di vista radiometrico che delle performance chimiche di degradazione del blu di metilene, allo scopo di ottenere un confronto e una possibile correlazione tra i due diversi aspetti. I film di biossido di tit

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14

Marage, Pierre. "Contribution à la mise au point du procédé aérosol-gel : application au dépôt de couches minces optiques dans le système SiO2-TiO2." Grenoble INPG, 1993. http://www.theses.fr/1993INPG0150.

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Le procédé aérosol-gel est une nouvelle technique de dépôt sol-gel. Son principe repose sur la pulvérisation d'un sol par voie ultrasonore. L'aérosol ainsi généré est transporte par un gaz vecteur vers le substrat et forme, en se déposant, un film liquide. Ce film conduit après évaporation du solvant et polymérisation du dépôt, a la formation d'une couche mince xérogel homogène et transparente. Des films SiO² ont pu être obtenus a partir d'un système chimique de type tetraethoxysilane/eau/acide chlorhydrique/alcool. Apres recuit à 500°C, ces films sont purs et présentent une densité proche de

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15

Marzini, Michael. "Automatisierung und Optimierung des Sol-Gel-Prozesses." [S.l. : s.n.], 2006.

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16

Sparks, Jeffery Scott. "Production of mullite fibers by the sol-gel method." Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/9135.

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17

McAughey, Kevin. "Fabrication of high temperature piezoelectric ceramics by sol gel method." Thesis, University of Warwick, 2011. http://wrap.warwick.ac.uk/55918/.

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This research covers the fabrication of piezoelectric ceramics using a sol gel method. Commercial high temperature transducers are typically fabricated by a milled oxide method. The sol gel method presented here produced purer samples that can be prepared at lower temperatures than conventional milled oxide preparations. The performance of the samples as piezoelectric transducers was also investigated, with the samples produced by sol gel method exceeding the piezoelectric response of the commercial samples.

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18

Yang, Lan Vahala Kerry. "Fabrication and characterization of microlasers by the sol-gel method /." Diss., Pasadena, Calif. : California Institute of Technology, 2005. http://resolver.caltech.edu/CaltechETD:etd-06032005-115306.

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19

Chen, Ying Fang, and 陳盈坊. "Sol-gel and sputtering methods for AZO thin films preparation." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/31094307890771449320.

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碩士<br>長庚大學<br>光電工程研究所<br>96<br>The goal of this study is to use sol-gel method and sputter technique to prepare ZnO：Al (AZO) thin films.The thermal treatment affected the crystallinility of the AZO films,XRD results showed that (002)-oriented polycrystal films are deposited on glass substrates and the crystalline quality can be improved.This study used flexible PET and PES plastic as substrates. ITO thin films were deposited on PES and PET plastic,and they have been prepared by SIV-3040.Their average resistivity on PES is 5.39×101 (Ω/□) and average resistivity on PET is 4.28×101 (Ω/□) . The ra

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Chen, Hsueh-Wen, and 陳學文. "The Preparation of Cordierite-Anorthite Glass Ceramics by Sol- Gel Methods." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/27012053847765643775.

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碩士<br>大同工學院<br>材料工程學系<br>84<br>The effects of B2O3 and P2O5 on the crystallization behavior and dielectric properties of sol- gel prepared stoichiometric cordierite and anorthite were studied. From the results, it was found that both B2O3 and P2O5 in the cordierite would promote the formation of α- cordierite. And the addition of P2O5 could also cause the densification of cordierite. However, these additions had little influences on the dielectric constant and

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Lai, yu sheng, and 賴育生. "Characterizations of Chemically Derived PZT Powders by Pechini and Sol-gel Methods." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/08019073120766544263.

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22

Chang, Hen-Chia, and 張恒嘉. "Preparation of ZnO Nanopowders and Transparent Thin Films by Sol-Gel Methods." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/sxy335.

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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>94<br>In this study, nanocrystalline zinc oxide powders and transparent films are prepared by sol-gel process, using zinc acetate and zinc chloride as precursors, respectively. The influences of water content, dopant type and concentration on the characterizations of gel powders and gel films are also studied. The powders and films can be prepared via the procedures of mixing, hydrolysis, petization, and condensation reaction. Transparent sols and gels can be obtained from proper concentrations of water, acidic electrolyte, and doped Al or Si. Improper water con

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23

Govo, Simbarashe Piniel. "Study of diamond/mullite composites by sol/gel and hot press sintering methods." Thesis, 2011. http://hdl.handle.net/10539/9466.

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MSc, School of Chemical and Metallurgical Engineering, Faculty of Engineering and the Built Environment<br>A study has been conducted into the synthesis of 10wt% diamond/ mullite composites through two methods: First through the hot press sintering of alumina and silica in stoichiometric composition for 3:2 mullites (mullite formed in situ) at 1400, 1450 and 1500oC. Second through the sol/ gel process. The sol/ gel method only provided the basis for future development with no further discussion of the results while the hot press sintering method yielded composites with residual cristobali

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24

Lee, Shiow-Yueh, and 李秀月. "Synthesis and characterization of nano-TiO2 powder by hydrothermal and sol-gel methods." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/fzzyrh.

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碩士<br>國立高雄海洋科技大學<br>微電子工程研究所<br>103<br>In this study,titanium dioxide (TiO2) nano-powder was prepared by hydrothermal and sol-gel methods﹐using titanium isopropoxide (C12H28O4Ti) as precursor and then through post calcination at temperatures (500 ~ 900 ℃)﹒XRD﹐FTIR﹐SEM﹐UV/VIS and PL were used to characterize their properties﹒The XRD analysis shows that crystalline anatase phase of titanium dioxide dominates at a lower calcination temperature (600 ~700 ℃)﹒The crystalline is transformed from anatase to rutile phase at higher calcination temperatures﹒The full transition temperature (700℃) by sol-g

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Lin, Ming-Shiang, and 林明祥. "Preparation and Characterization of Zinc Silicate (Zn2SiO4) Phosphors by the Sol-Gel Methods." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/84kugg.

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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>95<br>In this research, nanocrystalline manganese- and titanium-doped zinc silicate (Zn2SiO4：Mn；Zn2SiO4：Ti) phosphors powders were prepared by the sol-gel processes, respectively. The effects of solution concentration, dopant amount and heating temperature on the phosphor structures, crystallities, microstructures and luminescent properties were investigated and discussed. In the experimental process, the precursors were metal salts and metal organic compounds. Manganese and titanium were used as dopants. The doped zinc silicate phosphor powders could be pre

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26

Li, Yu-Sheng, and 李昱昇. "Preparation of Proton Conducting Silica Membranes via Pulsed Laser Deposition and Sol-gel Methods." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/n4f9k2.

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碩士<br>國立暨南國際大學<br>應用化學系<br>104<br>The purpose of this study is to synthesize mesoporous silica organic-inorganic complex membranes for vanadium redox flow batteries via sol-gel method dip-coating on porous PVDF membranes. Pulsed laser deposition (PLD) was utilized for modifying the porous PVDF membranes in order to enhance the bonding between the sol-gel solution and the porous PVDF membranes. A 4 μm thick mesoporous silica coating over the membrane, achieved from dip-coating, resulted in the formation of an organic-inorganic composite membrane which by far improved the proton transport throug

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Lee, Chia-an, and 李家安. "Structure and Morphology of Nanostructure Zinc Oxide Thin Films Prepared by Sol-Gel Methods." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/5mh79t.

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碩士<br>國立中山大學<br>光電工程學系研究所<br>97<br>This research is preparing a Nanostructure zinc oxide thin films by sol-gel methods, we use spin coating method to coat the gel on the substrate, and then put the substrate from 100°C -500°C for 10 min after each coating. We change the concentration of sol-gel、add dispersing agents and change the temperature of heat treatment to confer structure and morphology of nanostructure zinc oxide thin film. Through the experimentation we can know when the concentration of sol-gel become low, the film properties of zinc oxide thin films will become bad. And the thickne

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Chen, Chang Yu, and å¼µç¥ç. "The activity of CO and NO of Pd catalyst prepared by sol-gel/impregnation methods." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/11316441233507576476.

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碩士<br>國立中興大學<br>環境工程學系<br>93<br>The object of this research was to investigate the effects of different preparation methods on activity performances of palladium (Pd) catalysts. The Pd catalysts were prepared by sol-gel and impregnation methods, respectively. In the former process, support and Pd active site were synthesized in one step during the sol-gel method; in the latter process, support was synthesized by sol-gel method firstly, and then the coating with Pd active site on its surface with impregnation method. The physical texture and chemical character of Pd catalysts were characterized

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Effendi, Chintya, and 黎金春. "Preparation of TiO2 fibers by combining sol-gel and electrospinning methods for potential biomaterial applications." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/76143227653176761006.

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碩士<br>國立臺灣科技大學<br>化學工程系<br>103<br>Nano-architecture materials such as nanofibers are extensively studied due to their unique characteristics such as large surface area to volume ratio and flexibility in surface functionalization. In this study, a facile and versatile technique for the fabrication of TiO2 nanofibers by the combination of sol-gel and electrospinning techniques was proposed. The biocompatibility study of TiO2 fibers were also evaluated by culturing L-929 fibroblast cells. Due to the physical properties of the used precursor, titanium (IV) butoxide (TBT), that was not able to be e

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Huang, Ji-Xiu, and 黃季修. "Investigation of Cu, Ga, In-doped ZnO films used in Thin Film Transistors by sol-gel synthesis methods." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/71475466312620679343.

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碩士<br>元智大學<br>化學工程與材料科學學系<br>105<br>In this study, we investigated the properties of Cu-doped ZnO(CZO) , In-doped ZnO (IZO), Ga-doped ZnO (GZO), and In- and Ga-doped ZnO (IGZO) crystals, used for the fabrication of thin film transistor (TFT). These Metal-doped ZnO samples with different dopant compositions were prepared by sol-gel synthesis at 60 oC and characterized. Results showed that the crystal sturture of the doped ZnO was distorted and the grain sizes of the crystals decreased in the presence of the metal ion dopants. The resistivity and mobility of all the doped ZnO samples decreased,

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Su, Yu-ming, and 蘇昱銘. "Materials Characteristics and Electric Performance of Gd2O3 doped CeO2 with the doping of Sintering Aids by Sol-Gel Methods." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/36328041882963600454.

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碩士<br>大同大學<br>材料工程學系(所)<br>97<br>In this study, we proposed sol-gel method to prepare gadolinia-doped ceria (GDC) solid electrolytes with the addition of SiOX or TiOX as the sintering aids. Materials characteristics of the prepared and calcined electrolyte samples were identified by X-ray diffraction (XRD) for crystalline structure, Specific surface area analyzer (BET) for particle size and scanning electron microscopy (SEM) for surface morphology of powders. The electric performance and density were measured by Archimedes method and AC impedance method. For the calcined process of SiOX-doped

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ZHONG, YI-ZHI, and 鍾易芝. "A study on the preparation of some high-Tc bismuth-based oxide superconductors via coprecipitation and sol-gel methods." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/05117276863215309709.

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Ho, Tsai-Tien, and 何再添. "Characteristics of (Pb(Zrx ,Ti1-x)O3，PZT) films deposited on various substrates by sol-gel spin and spray coating methods." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/15188297895835197784.

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碩士<br>修平技術學院<br>電機工程研究所<br>97<br>This main object of this study is to fabricated the self-tuned Pb(Zrx Ti1-x)O3 sol-gel on different substrates by spin and spray coating technologies, and investigate the variety of their microstructures and characteristics. The thicknesses of PZT films were around 3 μm and 10 μm by sol - gel spin and spray coating technologies, respectively, on aluminum (Al) and nickel (Ni) substrates. Through the measurements and analyses of XRD, dielectric constant and dielectric loss, the performances of PZT film deposited on Al substrate were superior to Ni one. This may b

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Chien, Hsing-Ghi, and 簡馨綺. "Nickel Cobaltite and Its Composite Materials Prepared with Sol-Gel Methods for Applications in Oxygen Evolution Reaction and Energy Storage Systems." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/82924936527300553174.

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Lin, Wan-Hsien, and 林宛嫺. "NaTaO3 Synthesized by Sol-Gel and Solid-State Methods and Its Application in Water-splitting for H2 Generation Under UV Light Illumination." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/93737079724098326162.

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碩士<br>國立成功大學<br>化學工程學系碩博士班<br>94<br>A well-known sol-gel synthesis route was developed to prepare high surface area and fine crystalline Perovskite-type NaTaO3 nanoparticles (denoted as SG500). Compared to the NaTaO3 with low surface area that prepared from traditional solid-state method (denoted as SS1200), SG500 provides more active sites for electron-hole pair to react with water and evolve H2 and O2. Furthermore, the decreasing of crystalline size implies the reducing of the probability of electron-hole recombination. In present work, the effect of NiO cocatalyst is also discussed to promo

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Chan-ChingChen and 陳展慶. "The Effects of Non-Stoichiometry and Lithium Doping on the Performances of (Na0.5K0.5)NbO3 –Based Piezoelectric Thin Films Derived via Sol-Gel Methods." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/65034443530684820095.

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碩士<br>國立成功大學<br>電機工程學系<br>102<br>In this study, lead-free non-stoichiometric piezoelectric (Na0.5K0.5)NbO3 (NKN) films were fabricated by sol-gel processing on Pt (111)/Ti/SiO2/Si(100) substrates. To investigate the microstructure and electrical properties of films, a serious of measurements such as XRD, SEM, AFM, J-V, XPS, P-E, d33, etc were carried out. It was found that the secondary phases and oxygen vacancies formed when sodium and potassium volatilized via annealing process. Then these secondary phases resulted in poor electrical properties. Therefore, the compensation of sodium and po

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Miraldo, André Manuel da Costa Patrão. "Biomateriais bio-inspirados à base de sílica para aplicações biomédicas em tecidos duros." Master's thesis, 2018. http://hdl.handle.net/10316/86172.

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Trabalho de Projeto do Mestrado Integrado em Engenharia Biomédica apresentado à Faculdade de Ciências e Tecnologia<br>Silica synthesis for biological applications presents an array of challenges, namely the incorporation of drugs or other biological compounds due to the high temperatures and pressures at which the synthesis occurs. biomimetism is a technique that imitates natural systems, models, or reactions. In silica synthesis, this technique draws inspirations from various organisms such as the diatoms.By using biomimetic catalysts, silica can be synthesized at low temperatures and pressur

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Ting, Wei-He, and 丁維和. "Prepare PZT powder by sol-gel method." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/42822461982389578388.

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Hwung, Shy-Shyang, and 黃詩翔. "Preparation for V2O5-SiO2 by Sol-Gel Method." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/43847380398273314356.

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Huang, Shi-Xiang, and 黃詩翔. "Preparation for V2O5-SiO2 by Sol-Gel Method." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/82040213402673674342.

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Wang, Chang-Long, and 王敬龍. "Preparation of ITO film by sol-gel method." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/29054700599327044952.

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Ren, Chi Chun, and 任啟中. "Use the Sol-Gel Method to Prepare Zirconia." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/09027812798387833577.

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Chen, Hong Ming, and 陳鴻銘. "Synthesis of Mesoporous Titania by Sol-gel Method." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/68891272606010457793.

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碩士<br>國立屏東科技大學<br>機械工程系所<br>95<br>Recently, mesostructured materials with high surface areas and large pore sizes have attracted much attention because of their potential applications in the areas of adsorption and catalysis. In this study, mesoporous TiO2 was prepared by sol-gel process and the synthesis was accomplished by using block copolymer as the template, and TiCl4 as the inorganic precursor. TGA, XRD, TEM and N2 adsorption-desorption isotherms were used to characterize the microstructure of the samples. Using F108 block copolymer as the template, mesoporous TiO2 with the anatase s

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Lyu, Chun Cheng, and 呂俊成. "Synthesis of Mesoporous Ta2O5 by Sol-gel Method." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/08432998939674878733.

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碩士<br>國立屏東科技大學<br>機械工程系所<br>98<br>Ta2O5 finds its promising application in catalysis, solid oxides fuel cells and sensors. After absorbing the ultraviolet ray, it has the light catalyst effect and further resulting in hydrolysis to producing the hydrogen energy. Many applications would benefit from the enhancement of the chemical reaction of Ta2O5. Mesostructured material due to its tailored pore structures and high surface area, thus improving the effectiveness of the material has attracted increasing attentions in recent years. Mesoporous Ta2O5 are obtained by the sol-gel process with the bl

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HSU, WEN-CHIEH, and 徐文傑. "Synthesis of Mesoporous Al2O3 by Sol-Gel Method." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/15849907978799946462.

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碩士<br>國立屏東科技大學<br>機械工程系所<br>98<br>Al2O3 is an important element industrial chemistry that has applied widely as adsorbents, ceramics ,abrasives, catalysts and catalyst supports, ext. Especially organized mesoporous alumina has a high potential on commercial applications in catalysis. Mesostructured alumina compares with general nanometer materials which has the character of tailor pore structures and high surface areas .Thus ,it has become an important research study in recent years. First, in this study,organized mesoporous alumina is synthesized by the sol-gel process method with nitrate alu

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Tseng, Shin-Yi, and 曾心誼. "Ta2O5 thin films prepared by Sol-Gel method." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/35261148218995324385.

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碩士<br>國立交通大學<br>材料科學與工程研究所<br>85<br>In this work we studied the preparation, structure and properties of Ta2O5 films grown by sol-gel method. The specimems were prepared byspin-coating the starting solution containing Ta(OC2H5)5 onto Si wafersfollowed by various heat treatments. X-ray and AES analyese indicted atthe film has [O]/ [Ta] ratio rather close to exact stoichiometry. The films annealed at 400℃for 4hrs exhibited the highest dielectric constant (24.27) and the best breakdown volt

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Pai, Chia-Wei, and 白家維. "Mesoporous Leucite Porcelain Synthesized by Sol-Gel Method." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/228v93.

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碩士<br>國立臺北科技大學<br>材料科學與工程研究所<br>97<br>The purpose of this study was tried to fabricate the leucite porcelain with ordered mesoporous structure. We have four topics in this plan to discuss. A study amount on the basis of the interactions between inorganic-organic to form meso-structured composites.The reaction temperature is relatively order of mesostructure. The pore structures of mesoporous materials depend on the temperature changing and pore condition of mesoporous materials depend on the pH value of micells formation. The results shown the temperature of calcination over 900℃ leucite cryst

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Chen, Rei-Lin, and 陳瑞琳. "Preparing Electrochromic material Tungsten Oxide by Sol-Gel method." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/64645832319371835409.

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碩士<br>逢甲大學<br>化學工程學所<br>92<br>Electrochromism is currently attracting more attentions from the academia and industries. There are many commercial applications for the electrochromic devices, such as sunroof window in a car, smart windows in order to balance the lighting in a house, antiglare mirror and electrochromic displays. Electrochromic materials include two types that are inorganic and organic ones. Especially for the inorganic type it can tolerate the dramatic environmentally changes, the typical materials are ITO, WO3 and NiOx, etc. The WO3 is the most investigated inorganic material,

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Huang, Hung-tai, and 黃鴻泰. "Preparation of WO3/V2O5 electrochromic glassby sol-gel method." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/58295080690905623848.

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碩士<br>逢甲大學<br>化學工程學所<br>94<br>The rapid development of electrochromic materials has draw much attention to the academic research and technological application in recent years. The key to decide the electrochromic device in commercial purpose is the electrochromic performance and durability, such as response time, optical density change, cyclic lifetime and environmental test. In this study, sol-gel method is adopted to prepare the electrochromic films. It has advantages of low cost, and can be applied to large size of substrate. We use different factors of preparation to study the electroc

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Cheng, Wen-Yang, and 鄭文禓. "Application the Sol-gel Method to Fabricate Magenta Pigment." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/07369216525435375881.

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碩士<br>明新科技大學<br>化學工程與材料科技系碩士班<br>103<br>This paper presents the application of the sol-gel method to fabricate magenta pigment with aluminum isopropoxide as the foundation. We manipulated various factors during the experiment, including (1) the foundation, (2) the drug formula, (3) sintering temperature, and (4) sintering time to determine their influence on the color of the pigment. We found that to obtain a magenta toner, the number of chromium nitrate molarity must be fixed, as it controls the color of the pigment. Therefore, the primary factor manipulated was zinc nitrate, followed by the

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