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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 20 of 451 for “"surface chemistry"”.
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The colloid and surface chemistry of allophane
… and colloidal properties but much of the surface and colloid chemistry allophane was not well understood. The aim of this project was to investigate the properties of allophane with the view of developing commercial uses and also to understand better how it might behave in the natural …
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Functional surface chemistry of carbon-based nanostructures
… Because these nanostructures are entirely all-surface, with every atom exposed to ambient, introduction of defects and doping by chemical means is expected to be an effective route for addressing these issues. Raman spectroscopy has been a proven characterization method for understanding …
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Electrochemistry and surface chemistry of self-assembled monolayers
… Institute of Technology, Dept. of Chemistry, 1999.
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Gold Nanomaterial–Biomolecule Interactions: Influence of Size, Gold Nanomaterial–Biomolecule Interactions: Influence of Size, Surface Chemistry, and Environment Surface Chemistry, and Environment
… the effect of nanoparticle size, ligand chemistry, proteins, and storage time on the behavior of gold nanoparticles (AuNPs) in biologically relevant settings. Citrate-coated spherical AuNPs ranging from 5 to 60 nm were purchased and studied across three complementary projects. First, …
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Surface chemistry research of electronic processes and electronic devices
Surface chemistry and analysis is important in many different disciplines. In this dissertation, the role of surface chemistry in improving performances of electronic devices are discussed. Two different perspectives are investigated. In the first topic, atomic layer etching (ALE) of transition …
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Surface chemistry and material integration of metal oxide nanocrystals
… so intriguing involve interaction with their surfaces, which necessitates the removal of the ligands. A variety of methods for ligand stripping have been explored, all with the goal of obtaining ligand-free nanocrystals that retain their properties in dispersions that are stable long enough to …
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Surface chemistry and growth of oxide supported metal nanoparticles
… the atomic and electronic structure of the surface as well as the interface of the prepared samples. In particular, the surface-sensitive tools such as electron energy loss spectra (EELS) and low energy ion scattering (LEIS) spectra provide us detailed information of the surface …
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Mineral-Surface Chemistry of Hydroxyapatite and Urea-Rich Solutions
… minerals.</p> <p>Our study investigates surface interactions of hydroxyapatite, a prebiotically plausible phosphate mineral source on the early Earth, with urea-rich solvents (urea, ammonium formate, and water, UAFW) and magnesium sulfate. Time-dependent infrared studies were conducted …
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Copper Surface Chemistry Relevant to Chemical Mechanical Planarization (Cmp)
… AFM, cyclic voltammetry, impedance spectroscopy, surface-enhanced Raman spectroscopy, and mass spectrometry. Inhibitor films formed from TAZ were thicker, more permeable, and rougher than films formed from BTA. The addition of glycine to these solutions showed an increase in corrosion for the …
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Transport-Kinetic Processes and Surface Chemistry in Biosensor Design
… is used to mix the sample as it passes through a surface plasmon resonance biosensor. These experiments indicate that such ""solution-based"" mixing strategies can be effective in microfluidic biosensors."
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Control of Surface Chemistry of Gold, Pyrite and Pyrrhotite
… dixanthogen is the only species that renders the surface hydrophobic. Chemisorbed xanthate is observed on the gold surface but is hydrophilic. The synthetic polymers may adsorb on pyrite and pyrrhotite possibly through the hydrophobic interaction between the hydrophobic moiety of the polymer and …
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It's Not a SKZCAM! Accurate Surface Chemistry at Low Cost
… storage requires a deep understanding of their surface chemistry. Simulations provide the needed atomic-scale insights, allowing for fundamental quantities like the adsorption energy and oxygen vacancy formation energy to be calculated. Consistently achieving accurate predictions will require …
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Alcohol surface chemistry in ultrahigh vacuum and at high pressure
… boundary layer films formed on lubricated metal surfaces, the surface chemistry of a set of straight chain alcohols on the clean and pre-oxidized Ag(110) surfaces have been examined. On the clean Ag(110) surface, the alcohols from methanol to pentanol were found to adsorb reversibly. XPS results …
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The surface chemistry of nanoparticles: towards biological and engineering applications
Embargo set by: Seth Robbins for item 103454 Lift date: 2020-03-02T19:56:41Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system
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Study on the surface chemistry behavior of pyrochlore during froth flotation
… typically accomplished by froth flotation. The surface chemistry of pyrochlore is similar to many of its associated non-value minerals. Therefore, understanding the surface chemical properties of the pyrochlore for selective pyrochlore flotation will potentially aid in the design of flotation …
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Antifouling and Antithrombogenic Ultrathin Surface Chemistry for Bioanalytical and Biomedical Applications
… of biological species, or to inhibit the surface-mediated activation of potentially harmful biological processes, biomaterial research invariably faces the need for man-made, foreign surfaces intimately contacting bodily fluids/tissues to be `bioinert'. A popular strategy to address this …
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Surface Chemistry Of Application Specific Pads And Copper Chemical Mechanical Planarization
… consists of several steps such as the removal of surface layer by mechanical action of the pad and the abrasive particles, the dissolution of the abraded particles in the CMP solution, and the protection of the recess areas. The CMP process occurs at the atomic level at the pad/slurry/wafer …
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