Sökning: "graphite structure."

Visar resultat 1 - 5 av 28 uppsatser innehållade orden graphite structure..

  1. 1. Analys av platinaytor och platinatennytor under katalytisk etanoloxidation med röntgenfotoelektronspectroskopi

    Magister-uppsats, Malmö universitet/Institutionen för materialvetenskap och tillämpad matematik (MTM)

    Författare :Mats Viktor Löfstrand; [2023]
    Nyckelord :Pt3Sn; APXPS; Ethanol oxidation; Pt 111 ; Pt 223 ;

    Sammanfattning : Fuel cells are more efficient and cleaner than combustion engines. Ethanol as a fuel has a high energy density and is safer and easier to handle than hydrogen which is normally used in fuel cells. If efficient fuel cells on alcohol were available, they could be used for engines and power sources for electronics. LÄS MER

  3. 2. Machinability study on GCI brake discs - Effects of material variations and process behavior on tool life

    Uppsats för yrkesexamina på grundnivå, Lunds universitet/Industriell Produktion

    Författare :Christian Jaunviksna; [2023]
    Nyckelord :Metal cutting Machinability Grey cast iron Tool wear Cutting data Hardness Microstructure Segmentation; Technology and Engineering;

    Sammanfattning : Grey cast iron is one of the most used materials in the automotive industry. The material has a range of properties that makes it suitable for machining applications, but manufacturers still experience machinability problems. LÄS MER

  4. 3. Freestanding graphite cathode with graphene additive for aluminum dual-ion batteries

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Adam Rosvall; [2023]
    Nyckelord :Aluminum ion batteries; Dual-ion batteries; Graphite; Graphene; Ionic liquid; Phase inversion method;

    Sammanfattning : In today’s fast adjustment to renewable energy, new battery technologies are needed to meetthe ever-growing demands of energy storage. Cheaper and easier to produce materials areneeded, as well as materials with a lower environmental impact. LÄS MER

  5. 4. Computational Cyclic Voltammetry of Supercapacitors

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Albert Pettersson; [2022]
    Nyckelord :;

    Sammanfattning : As the demand on electrochemical energy storage devices grows, more complex technologies are required, hence an improved knowledge on the microscopical level is needed. This can be achieved by using computational tools, in particular molecular simulations. LÄS MER

  7. 5. Micro-architectured materials for thermal management : Porous graphite/graphene boiling enhancement structures

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad mekanik

    Författare :Melody Ghaderidosst; [2022]
    Nyckelord :Microarchitecture; TPMS; Gyroid; thermo-mechanical; computational homogenization; graphite; graphene;

    Sammanfattning : The convergence of the digital and physical world encourages advances in high-speed telecommunication and fifth generation technology. Two-phase heat transfer systems are common engineering solutions. However, due to the large frequency spectra in 5G, the systematic heat generation increases requiring more efficient thermal management. LÄS MER