Sökning: "rare earth metal"

Visar resultat 1 - 5 av 22 uppsatser innehållade orden rare earth metal.

  1. 1. The Promise of a Green Revolution : Conceptions of climate change and sustainability in local movements objecting to mining establishment

    Master-uppsats, Uppsala universitet/Institutionen för kulturantropologi och etnologi

    Författare :Caroline Reinhammar; [2023]
    Nyckelord :;

    Sammanfattning : This study explores how vernacular understandings of climate change and sustainability are formed in relation to local disputes concerning mineral exploration. In a search for a solution to climate change, the interest in rare earth elements (REEs), and other metals used in green technology has resulted in granting mining companies processing concessions in Sweden. LÄS MER

  3. 2. Synthesis and Characterization of Multi-component Metal Oxides based on Ru-Co-Mo as Oxygen Evolving Electrocatalysts

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Jonas Tejbo; [2023]
    Nyckelord :catalyst; metal-oxide; electrolysis;

    Sammanfattning : Finding materials based on non-rare earth metals is vital for the global transition to a more sustainable economy. Discovering useful properties in common metal oxides is a promising avenue for new materials. LÄS MER

  4. 3. A numerical comparison of the thermoacoustics for different equivalence ratios for n-dodecane using LES

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Björn Jarfors; [2023]
    Nyckelord :Computational Fluid Dynamics; Bluff-body stabilised flames; Large Eddy Simulation; Thermoacoustics; Acoustics; NEUMANN Project; Jet engines; Aero engines; Airplanes; Combustion; Numerics; Technology and Engineering;

    Sammanfattning : Klimatförändringarna påverkar vår värld och det behövs ett mer hållbart samhälle. Flygindustrin är i behov av förändring, men flygmotorer är mycket komplexa och tar tid att utveckla. Termoakustiska instabiliteter har kraften att förstöra en motor, men också att minska miljöpåverkan. LÄS MER

  5. 4. Investigating Yttrium Ruthenate Pyrochlore as an Anodic Electrocatalyst in Proton Exchange Membrane Water Electrolysis

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

    Författare :Kneev Sharma; [2023]
    Nyckelord :;

    Sammanfattning : As the energy transition progresses, the demand for green storage solutions is ever-increasing. Hydrogen storage is receiving increased interest and support due to its promising sustainability and flexibility. Proton-exchange, or polymer electrolyte, membrane (PEM) electrolyzers are a key technology supporting hydrogen storage systems. LÄS MER

  7. 5. Michael additions utilizing transition-metal-catalysts, Scope and limitations

    Kandidat-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Ruben Hansson; [2023]
    Nyckelord :Green chemistry; transition metal; rare earth metal; Michael addition; Yb; Zr; Hf; analytical chemistry; Chemistry;

    Sammanfattning : The effect that organic solvents have on the environment and the intrinsic risk that come with using them should be limited. By replacing organic solvents with less harmful solvents, such as water, and with more effective catalysts can risks intrinsic to organic solvents be minimized or eliminated. LÄS MER