Sökning: "palladium"

Visar resultat 6 - 10 av 37 uppsatser innehållade ordet palladium.

  1. 6. Influence of mass transport on glycerol electrooxidation on palladium in alkaline media

    Master-uppsats, KTH/Tillämpad elektrokemi

    Författare :Elvira Lind; [2022]
    Nyckelord :Glycerol electrooxidation; Palladium; Mass transport; Comsol Multiphysics; Rotating disk electrode; Electrooxidation av glycerol; Palladium; Masstransport; Comsol Multiphysics; Roterande diskelektrod;

    Sammanfattning : Vid produktion av biodiesel produceras även råglycerol (10 vikt%) som biprodukt och utbudet av råglycerol har ökat över de senaste åren till följd av att biodieselproduktionen ökat. Marknadsvärdet för råglycerol är lågt, men det är en utmärkt föregångare till att producera mervärdesprodukter för exempelvis läkemedelsindustrin, kemikalieindustrin eller kosmetika. LÄS MER

  3. 7. Prospective Life Cycle Assessment of an Electrochemical Hydrogenation Process Over a Nickel Foam Cathode

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Hanson Appiah-Twum; [2022]
    Nyckelord :Scale-up; early process design; catalysis; environmental impact; hotspot analysis; green chemistry;

    Sammanfattning : The need for a safe and sustainable chemical industry has called for the development of emerging technologies with improved environmental performance. In this study, an emerging electrochemical hydrogenation process over Ni foam is being developed at the laboratory scale with an expectation of less environmental impacts than a conventional palladium on carbon hydrogenation process. LÄS MER

  4. 8. Laptops and smartphones - a gold mine? : A material flow analysis of small electronics in a Swedish organisation with focus on metal resources

    Master-uppsats, Linköpings universitet/Tema Miljöförändring

    Författare :Daniella Karlsson; [2021]
    Nyckelord :Metals; bottom-up MFA; Recycling; Reuse; Urban mining; Stocks;

    Sammanfattning : The aim of this study is to contribute to today´s knowledge about stocks of electronic products on the organisational level. This is done by using a bottom-up MFA on laptops and smartphones in a chosen organisation, the data collected for this study is done by both semi-structured interviews and literature searches. LÄS MER

  5. 9. Influences of palladium ceramics on valuable metal losses to a PbO-SiO2-Sb2O3 based silver smelting slag.

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Industriell miljö- och processteknik

    Författare :Per Kautto; [2020]
    Nyckelord :palladium ceramics; silver smelting slag; PbO-SiO2-Sb2O3;

    Sammanfattning : Silver and palladium can be found in the so called palladium-ceramics which comes from catalyst production. These valuable metals needs to be recovered from these wastes in order to further increase both the environmental and economic sustainability of our society. LÄS MER

  7. 10. Oxygen Reduction Catalysts in Alkaline Electrolyte

    Kandidat-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Avital Cherednik; Anders Abrahamsson; Bjarne Falk; [2020]
    Nyckelord :Alkaline Fuel Cells; Catalyst; Silver; Nano Particles; Radiolysis; Gamma-radiation;

    Sammanfattning : Alkaline fuel cells are a promising technology, with their sturdy design and many applications they are held back mostly by their cost. By introducing a catalyst, the activation energy of the cell can be reduced to an overcomable amount. LÄS MER