Search for dissertations about: "Adsorption"

Showing result 11 - 15 of 1046 swedish dissertations containing the word Adsorption.

2. 11. Surface reactions on metallic nanoparticles : Ligand adsorption, metal release, and reactive oxygen species generation

   Author : Amanda Kessler; Inger Odnevall; Tommy Nylander; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; metallic nanoparticles; ROS; reactive oxygen species; metal release; ligand adsorption; corrosion; Fenton like Haber Weiss reactions; metalliska nanopartiklar; ROS; reaktiva syreradikaler; metallfrisättning; adsorption; korrosion; Fenton lika Haber Weiss reaktioner; Kemi; Chemistry;

   Abstract : Humans are exposed daily to metallic nanoparticles (Me NPs) from multiple sources which can have both natural and anthropogenic origins. Such exposures take place via different routes including inhalation and skin contact and may result in adverse health effects. READ MORE

4. 12. Adsorption of polyhydroxyl based surfactants

   Author : Maria Matsson; Per Claesson; Robert Meszaros; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physical chemistry; surface chemistry; adsorption; surfactant; nonionic; alkyl glucoside APG ; ellipsometry; kinetics; alkyl amine oxide DDAO ; alkyl ammonium bromide DTAB ; solid liquid interface; synergism; coadsorption.;

   Abstract : Adsorption on solid surfaces from solution is a fundamental property of a surfactant. It might even be the most important aspect of surfactant behavior, since it influences many applications, such as cleaning, detergency, dispersion, separation, flotation, and lubrication. READ MORE

5. 13. Molecular overlayers on homogeneous and heterogeneous metal surfaces studied by core-level photoemission

   Author : Maria Smedh; Fysiska institutionen; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; photoelectron spectroscopy; core-level photoemission; electron energy loss spectroscopy; single crystal surfaces; metal surfaces; heterogeneous surfaces; adsorption; adsorbed molecules; hydrocarbons; molecular vibrations; carbon monoxide; adsorption sites; adsorption energy; diffusion; dissociation; Physics; Fysik; Fysicumarkivet A:2001:Smedh;

   Abstract : The main topic of this thesis is the investigation of small molecules adsorbed on metal surfaces by means of core-level photoemission spectroscopy. The thesis consists of three parts; The first group of papers concerns the effects of internal molecular vibrations on the core-level photoemission spectra. READ MORE

6. 14. Adsorption and bonding on platinum : influence of the surface structure and chemical composition

   Author : Emmanuelle Janin; KTH; []
   Keywords : Platinum; tin; low index single crystal surfaces; adsorption;

   Abstract : This thesis deals with the influence of the structure andchemical composition of platinum surfaces on the adsorption ofsome molecules. Three main lines can be distinguished : 1) thecharacterisation of clean/modified surfaces, 2) the adsorptionof some simple atoms and molecules on these surfaces andfinally 3) the adsorption of 2-butenal, a bi-functionalmolecule containing a C=C group conjugated with a C=O group. READ MORE

7. 15. Adsorption of pinosylvin onto the structure of wood : mechanism and adsorption parameters

   Author : Ildiko Mohammedne Ziegler; Luleå tekniska universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry of Interfaces; Gränsytors kemi;

   Abstract : Pinosylvin and polyhydroxybenzene derivatives are natural components of wood, known for their fungicidal/fungistatic properties. These components were used as adsorbates in the present investigation. READ MORE