Sökning: "low-temperature preparation"
Visar resultat 1 - 5 av 25 avhandlingar innehållade orden low-temperature preparation.
1. Low-Temperature Oxidation of CO and Volatile Organic Compounds over Supported Platinum Catalysts
Sammanfattning : The catalytic oxidation of carbon monoxide (CO) and volatile organic compounds (VOC) is important for the reduction of harmful emissions from both vehicles and from stationary sources. Both these applications suffer from poor catalytic efficiency at lower temperatures. LÄS MER
2. Foam Core Materials for High Performance Sandwich Constructions: Preparation, Testing and Properties
Sammanfattning : The basic task for foams used as core materials in sandwich constructions is to separate the skin layers in order to enhance stiffness with little contribution to the total weight. However, modern design in sandwich technology require that core materials contribute to the perfor-mance with specific mechanical and physical properties. LÄS MER
3. Spatial Variation in Near-Ground Radiation and Low Temperature - Interactions with Forest Vegetation
Sammanfattning : Low temperature has a large impact on the survival and distribution of plants. Interactive effects with high irradiance lead to cold-induced photoinhibition, which may impact on the establishment and growth of tree seedlings. LÄS MER
4. Surface modification of III-V nanostructures studied by low-temperature scanning tunneling microscopy
Sammanfattning : In the past decade, driven by the demand for materials with high performance for next-generation semiconductor devices (e.g. LÄS MER
5. Preparation of New Catalytic Materials by Small Particle Technology
Sammanfattning : New techniques for preparation of catalytic materials with novel properties are presented in this thesis. Three new catalytic materials; washcoated fibres, highly dispersed metal oxides on titania coated silica particles and discrete colloidal ZSM-5 crystals with a low SiO2/Al2O3 ratio have been prepared and characterised. LÄS MER
