Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"metal nanoclusters"”.
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Theory of magnetic transition metal nanoclusters on surfaces
… Firstly, the method was applied to 3d transition-metal clusters on different ferromagnetic surfaces. Different types of magnetic clusters were selected. Clusters of Fe, Co, Ni atoms are ferromagnetic and thus magnetically collinear. In order to investigate magnetic frustration due to competing …
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Synthesis and characterization of block copolymers containing metal nanoclusters
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1997.
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TOWARD UNDERSTANDING THE FUNDAMENTALS IN THE SYNTHESIS OF METAL NANOCLUSTERS
Gold nanoclusters (Au NCs) are ultrasmall particles with the core size less than 2 nm. This size regime is in the transition from a single gold atom to a gold nanoparticle (Au NP). The general synthesis method of Au NCs is adpated from Brust method, where thiolate ligand is first mixed with Au(III) …
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Single-crystal metal oxides and supported metal nanoclusters as model catalyst sytems
… structure of two basic classes of systems: metal oxide surfaces that catalyze the formation of environmentally persistent free radicals (EPFRs) from aromatic precursors, and Au and Cu nanoparticles that may be suitable catalysts for the catalytic oxidation of CO or hydrogenation of CO2. …
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Plasmon Hybridization in Clusters of Metal Nanoparticles and Magnetic Nanoparticle Oligomers
… controllably altering the optical properties of metal nanoclusters are being explored. In this dissertation, we will focus on the latter; more specifically, the impact of metal nanocluster geometry on the collective plasmon behavior. It will be shown that complicated nanoparticle geometries can …
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Nanostructuring with diblock copolymers
… the defined and controlled positioning of noble metal nanoclusters in highly periodic and aperiodic patterns. Next to investigating the possibilities of self-assembly in connection with top-down patterning, our aim was to fabricate metallic nanowires as novel interconnects and functional …
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Structures and Applications of Porous Coordination Cages
… from the self-assembling of organic ligands and metal ions through coordination interactions. These metalorganic materials can exist in solution as standalone cage-like host systems that can be structurally tuned towards specific purpose. The unique environment that PCCs create in solution allows …
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Nanoclusters for Cancer Therapy: Assesment of Their Reactive Oxygen Species Generation and Stability
… detection and treatment of disease. Recently, metal nanoclusters have emerged as materials that can be used to identify and treat cancer. Nanoclusters or "clusters" are small arrangements of metal atoms protected by an exact number of ligands. Clusters have unique properties that make them …
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Preparative mass spectrometry applications in nanomaterials and organic synthesis
… and the preparation of atomically precise metal nanoclusters. First the mechanism for charging in the zero volt paper spray will be presented. This works builds a computational model based on the statistical fluctuation of positive and negative charges based on the theory of Dodd. It is …