Sökning: "proton dynamics"

Visar resultat 21 - 25 av 97 avhandlingar innehållade orden proton dynamics.

  1. 21. Direct H2O2 synthesis over dilute PdAu alloys

    Författare :Rasmus Svensson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; kinetic Monte Carlo; H2O2 synthesis; metal-water interface; dynamics; kinetic modeling; dilute alloys; catalysis; density functional theory;

    Sammanfattning : Heterogeneous catalysis is crucial in a range of technological and industrial processes. Depending on the composition of the catalyst and the reaction conditions, it is possible to steer the activity and the selectivity towards the desired products. LÄS MER

  2. 22. Simulating ion transport in electrolyte materials with physics-based and machine-learning models

    Författare :Yunqi Shao; Chao Zhang; Peter Broqvist; Carl Nettelblad; Barbara Kirchner; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; electrolytes; ionic conductivity; ion transport; molecular dynamics; machine learning potential; proton transfer; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

    Sammanfattning : Electrolytes are indispensable components of electrochemical devices such as batteries, fuel cells, and supercapacitors, and the mass transport in electrolytes is one of the most important design focuses of such devices. A microscopic picture of ion transport is essential to link the chemical properties of electrolyte materials to their electrochemical applications. LÄS MER

  3. 23. Laser-Driven Particle Acceleration - Improving Performance Through Smart Target Design

    Författare :Matthias Burza; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; wakefield; ultra-relativistic; ultra-intense; TNSA; Terawatt; sheath; proton; polarimetry; plasma mirror; plasma; Petawatt; particle; oscillation; Normarski; micromachining; LWFA; laser; interferometry; electron; contrast; acceleration; bubble; Fysicumarkivet A:2012:Burza;

    Sammanfattning : Laser-driven particle acceleration makes use of sub-picosecond, pulsed, high-power laser systems, capable of producing intensities ~10^{19} W/cm^2 at the laser focus to form plasmas, and use ultra-relativistic and nonlinear dynamics to produce quasistatic acceleration fields. This allows electrons to be accelerated to ~100 MeV over sub-centimetre distances, while protons may be accelerated to the ~10 MeV regime. LÄS MER

  4. 24. Light’EM up! : structural characterization of light-driven membrane protein complexes by cryogenic electron microscopy

    Författare :André Tomás Graça; Wolfgang P. Schröder; Johannes Messinger; Karina Persson; Werner Kühlbrandt; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; 3D reconstruction; Arabidopsis thaliana; assembly; chlorophyll; cryo-EM; cyanobacteria; Deinococus radiodurans; electron; land plants; membrane protein complexes; Photosystem II; proton; single-particle analysis; S-Layer Deinoxanthin Binding Complex SDBC ; water.; Biochemistry; biokemi; biologisk kemi; biological chemistry;

    Sammanfattning : Photosynthesis is probably the most important process for allowing life to develop into the diverse forms we see today. In this process, solar radiation is used to convert CO2 into biomass. From this process, we obtain oxygen to breathe, sources of food (plant biomass), and the potential for clean and sustainable energy. LÄS MER

  5. 25. A theoretical study of proton dynamics in perovskite structured oxides

    Författare :Mårten Björketun; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER