Sökning: "gas phase decomposition"

Visar resultat 1 - 5 av 11 uppsatser innehållade orden gas phase decomposition.

  1. 1. Electrolytic Reduction of Iron Oxides in Molten Salt with a Mineralogical Investigation of Magnetite Ore of Tapuli

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Elina Fernö; [2023]
    Nyckelord :Iron reduction; trace element analysis on magnetite ore; molten salt electrolysis; sodium hydroxide electrolyte; NaOH; greenhouse gas; carbon dioxide; CO2; green ironmaking; Järnreduktion; spårelementanalys på magnetitmalm; smältelektrolys; elektrolys i natriumhydroxid; NaOH; elektrolyt; växthusgas; koldioxid; CO2; grön järnframställning;

    Sammanfattning : This master's thesis covers an investigation of the reduction behavior of different iron oxides when electrolytically reduced with molten salt electrolysis (MSE). The tested iron oxides were wüstite (FeO), hematite (Fe2O3), magnetite (Fe3O4) and magnetite ore concentrate from the Tapuli deposit in Pajala, Norrbotten, Sweden. LÄS MER

  3. 2. Life cycle assessment on sodium-ion cells for energy storage systems : A cradle-to-gate study including 16 environmental perspectives, focusing on climate change impact

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Rebecca Nibelius; [2023]
    Nyckelord :Sodium-ion batteries; Life cycle assessment; Cradle-to-gate; Natriumbatterier; Livscykelanalys; Vagga-till-port;

    Sammanfattning : Because of the changing energy supply landscape, with the transition towards renewable energy, an emerging demand for energy storage systems (ESS) is expected in the near future. Battery energy storage is promising to contribute to mitigate the greenhouse gas emissions, but face issues considering resource use (IEA, 2023; IRENA, 2022). LÄS MER

  4. 3. Study of CO Emission in Nine Hot Dust-Obscured Galaxies at z ∼3

    Master-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Timothy Faerber; [2021]
    Nyckelord :Galaxies; high-z; AGN; starburst; quasar; evolution; cosmology;

    Sammanfattning : Massive galaxies evolve through different phases including starburst-dominated and active galactic nuclei (AGN)-dominated phases. These phases are predicted to be prevalent at earlier times (z ∼ 2 − 3). LÄS MER

  5. 4. Study of the Performance of Peat Moss Pyrolysis

    Master-uppsats, KTH/Materialens processteknologi

    Författare :Yuming Wen; [2019]
    Nyckelord :peat moss; pyrolysis; bio-acids;

    Sammanfattning : Peat moss, also called sphagnum, has become a big problem in many countries such as China and Sweden due to its high green-house gas emission from chemical and biological degradation. In this work, the performance of peat moss pyrolysis has been studied, to investigate the potential of application of peat moss pyrolysis on fuel and chemical production. LÄS MER

  7. 5. A computational study on indium nitride ALD precursors and surface chemical mechanism

    Master-uppsats, Linköpings universitet/Kemi

    Författare :Karl Rönnby; [2018]
    Nyckelord :Computational Chemistry; Chemical Vapour Deposition; Atomic Layer Deposition; Indium nitride; gas phase decomposition; surface mechanism;

    Sammanfattning : Indium nitride has many applications as a semiconductor. High quality films of indium nitride can be grown using Chemical Vapour Deposition (CVD) and Atomic Layer Deposition (ALD), but the availability of precursors and knowledge of the underlaying chemical reactions is limited. LÄS MER