Browsing by Subject "Nanomaterials: Chemistry and Physics"
Now showing items 41-60 of 169
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Effect of Hydrothermal Treatment and Chemical Deactivation on the Activity of Cu-SSZ-13 in NH3-SCR
(2013)The effect of hydrothermal treatment and chemical deactivation on the Ammonia Selective Catalytic Reduction (NH3-SCR) with Cu-SSZ-13 zeolite as the catalyst has been studied. The Cu-SSZ-13 samples were first hydrothermally ... -
Elasticity and Vacancy Behaviour of Crystals of Hard Cubes
(2017)In this thesis we examine the effects of vacancies on the elasticity of a simple cubic crystal with cubic particles. We calculate the elastic constants as a function of the vacancy concentration and the packing fraction. ... -
Electrically induced modulation of surface plasmon polaritons
(2012)The confinement of electromagnetic fields in plasmonics paves the road for novel techniques to study the interaction of light and electronics. Changing the free electron density of metals perturbs their refractive index ... -
EM studies on proteins
(2017)In this study we studied various proteins and protein complexes by means of Single Particle Analysis (SPA), a 3D Electron Microscopy (EM) technique. High resolution images were collected with cryo TEM; lower resolution ... -
Enantioselective Organocatalytic Synthesis of γ-Valerolactone by Hydrosilylation of Methyl Levulinate
(2018)Enantiopure γ-valerolactone (GVL) has many applications and can be produced by stereoselectively reducing the inexpensive biomass compound levulinic acid (LA) or derivative alkyl levulinates (ALs). A green and highly ... -
EXAFS on noble metal promoted Co/TiO2
(2015)During a 5 month project, noble metal promoted Co/TiO2 catalysts for the Fischer-Tropsch process were studied with x-ray absorption fine structure techniques (XAFS). This project was performed during an internship at the ... -
Extending SERS to Dispersions for Applications in Catalysis
(2017)Dispersible SERS-active superstructures have been prepared as a tool in the study of liquid-phase catalytic reactions by Raman spectroscopy. These superstructures are composed of functionalized \ce{SiO2} nanospheres that ... -
Extraordinary Optical Transmission Through Periodic Structures in Gold
(2012)In this thesis, the results of a research project on Extraordinary Optical Transmission (EOT) through a gold film containing periodic hole structures are reported. The Poor Man’s Setup built for this research consisted of ... -
Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented Fabrication of single crystalline ultra-thin superlattices by self-assembly via oriented attachment of PbTe nanocrystals
(2014)Oriented attachment offers new possibilities to precisely build up complex structures. In this thesis oriented attachment of PbTe and PbS is investigated on an ethylene glycol toluene/hexane interface. While drying a quantum ... -
Femtosecond laser nano-ablation of glass surfaces and their self-scattering effects
(2016)In this thesis, the interaction between a femtosecond laser and glasses in the ablation regime is studied. A pulsed femtosecond laser setup allows for surface ablation of glasses under strong focussing conditions. This ... -
Flexible fluorescently labelled colloidal bead chains: synthesis and their real-space studies
(2013)A quest for colloidal particles with more complex shapes and interactions is fueled by applications in self-assembly and advanced functional material design, but also by the demand for more realistic model systems for ... -
Full-fiber ellipsometry: the (im)possibility of eliminating line-of-sight
(2013)Ellipsometry is a non-contact, extremely accurate technique for characterising thin films, which over the past decades have become vital in a host of applications. However, ellipsometry suffers from a number of disadvantages, ... -
Gibbsite systems for confocal microscopy studies
(2013)This thesis describes the synthesis of large (fluorescent) gibbsite platelets and their phase behaviour studied by optical observations of Bragg reflections, polarized light microscopy, and confocal laser scanning microscopy. ... -
Homo-FRET Detection by Fluorescence Polarization Anisotropy in Wide-field Microscopy
(2013)A fluorescence wide-field microscope setup for simultaneous detection of the parallel and perpendicular intensities was used in order to detect homo-FRET between fluorescently labelled proteins, thereby revealing clustering ... -
Hydrogels: pH-sensitive swelling and use as a sensor
(2015)In this work pH-sensitive magnetic hydrogels are investigated for their potential as chemical sensors in aqueous media. For this purpose thin layers of pH-sensitive hydrogels were made that incorporate magnetic particles. ... -
Increasing the Chemical potential by using a Local Optical Ultra-tight Dipole-Trap (i.C.L.O.U.D)
(2013)Although the experimental set-ups to get in the temperature regime for Bose-Einstein Condensation have been available for many years, there is an even colder regime where we are eager to do research in. It is in this regime ... -
Infrared spectroscopy to understand the effect of sodium and sulfur on catalytic performance of supported iron catalysts for the Fischer-Tropsch synthesis of lower olefins
(2015)Sodium and sulphur are known to promote the catalytic performance of iron-based catalysts, but their effects are not yet fully understood. In this study, IR spectroscopy was utilized to attempt to shine a light on this ... -
Interactions and order of cellulose microfibrils
(2017)Cellulose is a versatile structural biomaterial with a wide range of current and potential future applications, such as food thickening agents, wound dressings, acoustic membranes and roll-to-roll electronics. In this ...