Sökning: "Crystallites"
Visar resultat 16 - 20 av 43 avhandlingar innehållade ordet Crystallites.
16. Transmission Electron Microscopy for Characterization of Structures, Interfaces and Magnetic Moments in Magnetic Thin Films and Multilayers
Sammanfattning : Structural characterization is essential for the understanding of the magnetic properties of thin films and multilayers. In this thesis, both crystalline and amorphous thin films and multilayers were analyzed utilizing transmission electron microscopy (TEM). LÄS MER
17. Tuned acidity in zeotypes: A descriptor to unravel the direct conversion of methane to methanol
Sammanfattning : The catalyst's acidity is crucial in countless chemical reactions, and thus to tune this parameter means to take the lead on the desired catalytic reaction. Therefore, it is not surprising that zeolites have been used since decades as catalysts for their outstanding properties of solid acids. LÄS MER
18. Elasticity of Cellulose Nanofibril Materials
Sammanfattning : The demand for renewable load-carrying materials is increasing with increasing environmental awareness. Alternative sources for materials manufacturing and design have to be investigated in order to replace the non-biodegradable materials. LÄS MER
19. Adsorption of proteins on zeolite FAU
Sammanfattning : A highly dealuminated form of zeolite FAU, ultra-stable zeolite Y (USY), was used as an adsorbent matrix in the purification of proteins. Undesired proteins were removed from a crude preparation by adsorption on USY, increasing the purity of an unadsorbed protein (horse radish peroxidase), or the protein of interest was adsorbed on the zeolite and subsequently eluted through changes in the solution conditions (hen egg lysozyme, mouse-immunoglobulin G). LÄS MER
20. Synthesis and Evaluation of TaC:C Low-Friction Coatings
Sammanfattning : In the large family of carbon-based coatings there are members capable of providing a rare and very desirable combination of high wear resistance and low friction. The field of application for this kind of coatings is steadily increasing which, naturally, give raise to new questions and demands. LÄS MER