Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/18885
Title: Synthesis of nanostructured MoO3 materials
Authors: LOU XIONGWEN
Keywords: MoO3, MoS2, nanorods, hydrothermal, catalysis, self-assemble
Issue Date: 26-Jan-2006
Source: LOU XIONGWEN (2006-01-26). Synthesis of nanostructured MoO3 materials. ScholarBank@NUS Repository.
Abstract: This research work consists of several projects:It has studied the growth behavior of TiO2 nanoparticles on the substrate of I?-MoO3 nanorods under various conditions. It was found that the formation of I?-MoO3 nanorods cum growth of TiO2 nanocrystals process resulted epitaxial growth of TiO2 nanocrystals on I?-MoO3 nanorods, and anatase TiO2 nanocrystals preferentially grow on both ends of the nanorods. Utilizing this unique growth behavior, more complex I?-MoO3 nanostructures have been fabricated with TiO2 nanocrystals on both ends as capping agent. On the other hand, the as-formed itself can act as a template to produce shaped TiO2 nanocrystals. Cube-like, horseshoe-like and rod-like TiO2 nanocrystals can be obtained after dissolving I?-MoO3 in basic medium. NiMoO4O?nH2O and CoMoO4O?nH2O Nanorods have also been synthesized by a simple hydrothermal method, and their thermal dehydration processes have been studied.It also investigated several synthetic routes for synthesis of sub-microspheres of MoS2. Research work was also extended to synthesis of nanostructured tungsten oxides. A simple inorganic route has been successfully developed for large scale synthesis of monodispersed W18O49 nanorods with dimensional control in the quantum confinement regime.
URI: http://scholarbank.nus.edu.sg/handle/10635/18885
Appears in Collections:Master's Theses (Open)

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all prelim.pdf445.12 kBAdobe PDF

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Chapter 1 Introduction.pdf69.22 kBAdobe PDF

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chapter 2 Literature review.pdf823.21 kBAdobe PDF

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chapter 3 TiO2-MoO3.pdf3.08 MBAdobe PDF

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chapter 4 complex a-MoO3.pdf4.11 MBAdobe PDF

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chapter 5 AMoO4.pdf1.66 MBAdobe PDF

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chapter 6 W18O49.pdf1.99 MBAdobe PDF

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chapter 7 MoS2 spheres.pdf2.97 MBAdobe PDF

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chapter 8 Concluding remarks.pdf82.66 kBAdobe PDF

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references and appendices.pdf11.87 MBAdobe PDF

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