Sökning: "Spark Discharge"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden Spark Discharge.

  1. 1. Electrical Discharge Interaction with Lithium-Ion Battery Vent Gases: Investigations using High-Speed Imaging and Breakdown Analysis

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Alexander Petersson; [2023]
    Nyckelord :Electrical Discharge; Electrical Arc; Spark Discharge; Combustion; Ignition; Lithium-Ion Battery; Thermal Runaway; Vent Gases; Breakdown Voltage; Ionization; High-Speed Imaging; Technology and Engineering; Chemistry;

    Sammanfattning : The increasing drive for sustainable and eco-friendly transportation has made the electrification of cars a top priority in the energy and transportation sectors. Ensuring the safety of electrical vehicle (EV) batteries is of the utmost importance. LÄS MER

  3. 2. Nanoscale characterisation of model Ni-Mo catalyst active phases

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Centrum för analys och syntes

    Författare :Jonas Elmroth Nordlander; [2022]
    Nyckelord :Ni-Mo catalysts; Hydrodeoxygenation; TEM; PXRD; Materials chemistry; Chemistry;

    Sammanfattning : An important stepping stone in transitioning from a fossil-fuel based transportation system is the production of bio-fuels such as bio-oils. For bio-oils to be commercially viable, catalytic upgrading via hydrodeoxygenation is required, typically using Ni-Mo oxide or sulfide catalysts. LÄS MER

  4. 3. Generation of Model NiMo Hydrotreating Nano-catalyst via the Spark Discharge Technique

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Hatoon Makhool; [2020]
    Nyckelord :Model catalyst systems; hydrotreating catalysts; NiMo catalysts; Spark discharge technique; nanoparticles; chemical engineering; kemiteknik; Technology and Engineering;

    Sammanfattning : Establishing a technically practical method to generate representative model catalysts for the use in characterizations and testing prior to catalyst implementation in chemical process units would allow for a more sophisticated understanding of the underlying catalytic mechanisms. As a step towards establishing such a method, generating non-agglomerated, spherical NiMo nanoparticles, with diameters below 25 nm and atomic composition of maximum 30 at% Ni with Mo (maximum 3:7 Ni:Mo atomic ratio), for application as model hydrotreating catalysts, was addressed. LÄS MER

  5. 4. The Production of Samarium-Cobalt Nanoparticles Using a Spark Discharge Generator

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :Timothy Lewis; [2019]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : In this project I attempt to press custom electrodes from Sm and Co powder using two different pressing tools. I investigate if custom electrodes can generate nanoparticles with tailored properties using a spark discharge generator (SDG). LÄS MER

  7. 5. MAGNETIC CHARACTERIZATION OF SELF-ASSEMBLED ONE-DIMENSIONAL NETWORKS OF MAGNETIC NANOPARTICLES

    Kandidat-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Mario Salvador López Muñoz; [2019]
    Nyckelord :Nanomagnetism; Stoner-Wohlfarth; Magnetite Fe3O4; nanoparticles; Magnetic Characterization; Spark Discharge Technique; Physics and Astronomy;

    Sammanfattning : In this thesis, a magnetic study of two dierent arrangements of Fe3O4 nanoparticles is presented. The nanoparticles are generated using an aerosol technique and guided onto a substrate. LÄS MER