Sökning: "noble metals"

Visar resultat 1 - 5 av 51 avhandlingar innehållade orden noble metals.

  1. 1. Molecular and cellular interactions on noble metal nanopatterned surfaces − applications towards bone, soft tissue and infection control

    Författare :Sara Svensson; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; nanotopography; noble metals; titanium; biocompatibility; osseointegration; inflammation; host defence; monocytes; infection control; antimicrobial; staphylococci;

    Sammanfattning : Biomaterial-associated infection is recognised as one of the main risks for failure of medical devices. The presence of a foreign material in tissues has been suggested to compromise the ability of host cells to eradicate infection. LÄS MER

  3. 2. Designing and Tuning the Properties of Materials by Quantum Mechanical Calculations

    Författare :Jailton Souza de Almeida; Rajeev Ahuja; Patrizia Monachesi; Uppsala universitet; []
    Nyckelord :Physics; Density Functional Theory; Electronic Structure; Phase Transitions; High Pressure; Optical Properties; Dielectric Functions; Semiconductors; Metals; Fysik;

    Sammanfattning : In many materials, changes in chemical composition, pressure or temperature can induce metal to insulator transitions. It is recently observed in yttrium hydride, for example, changes from a shiny mirror (YH2) to a transparent window (YH3), which has important technological application in optical devices. LÄS MER

  4. 3. Electronic states of adsorbates and insulating overlayers on metal surfaces

    Författare :Fredrik Olsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Shockley surface states; local density of states; scanning tunneling microscope; chemisorption; sodium chloride; noble metals; image states; electronic states; density functional theory;

    Sammanfattning : Electronic states of adsorbates and insulating overlayers provide a wealth of scientifically interesting phenomena with great technological importance. Interesting phenomena arise, for example, from the interaction of electronic states of an adsorbate with the continuum of metal electron states, both propagating bulk states and surface states. LÄS MER

  5. 4. New Materials for Environmental Applications:Thermoelectrics and Low-Temperature Oxidation Catalysts

    Författare :Ali Saramat; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; selective oxidation; Czochralski; YMn4Al8; clathrate; heterogeneous catalysis; thermoelectricity; noble metals; mesoporous; phonon glass-electron crystal; figure-of-merit ZT ;

    Sammanfattning : New materials have been researched for environmental applications as thermoelectrics and low-temperature oxidation catalysts. One of the main objectives of this thesis was to prepare and characterize new efficient thermoelectric materials (TM’s). LÄS MER

  7. 5. Atomic and electronic structures of two-dimensional layers on noble metals

    Författare :Jalil Shah; Roger Uhrberg; Hafiz Muhammad Sohail; Patrick Vogt; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Two-dimensional (2D) materials, in the form of a single atomic layer with a crystalline structure, are of interest for electronic applications. Such materials can be formed by a single element, e.g., by group IV or group V elements, or as a 2D surface alloy. LÄS MER