Essays about: "cerium"

Showing result 1 - 5 of 21 essays containing the word cerium.

  1. 1. The chemical evolution of the Milky Way: pushing APOGEE to higher precision and accuracy

    University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Author : Erik Fridén; [2023]
    Keywords : Physics and Astronomy;

    Abstract : In the recent decade, a rapid increase in all-sky spectroscopic surveys has occurred, and with it, the wealth of observational data and information on our Galaxy. Consequently, numerous detections of new structures, such as new open clusters, accreted and in-situ components, are discovered. READ MORE

  3. 2. Effect of powder spray drying on catalyst formulation in tablet form

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Kajsa Wahlgren; [2023]
    Keywords : Spray dryer; Catalyst; Powder; Flowability; Chemical engineering; Technology and Engineering;

    Abstract : Heterogenous catalysts consist of a large surface area support material applied with the catalytic active phase, and the activity of a catalyst is often correlated to the surface area per volume. Support materials often need to be processed further to be optimal for specific processes. READ MORE

  4. 3. In Situ and Ex Situ Study of Nanoparticles Stability and Transformation in Simulated Aquatic Natural Media

    University essay from KTH/Kemi

    Author : Dinh Nguyen; Jonathan Samuelsson; Vilma Grönvall; [2022]
    Keywords : nanoparticles; freshwater; natural organic matter NOM ; agglomeration; dissolution; genotoxicity; atomic absorption spectroscopy AAS ; nanoparticle tracking analysis NTA ; inductively coupled plasma ICP ; nanopartiklar; färskvatten; naturligt organiskt material NOM ; agglomerering; upplösning; genotoxicitet; atomabsorptionsspektroskopi AAS ; nanopartikelspårning analys NTA ; induktivt kopplad plasmaanalys ICP ;

    Abstract : Nanopartiklar är partiklar med storlekar i området 1 till 100 nm, och som uppvisar nanospecifika egenskaper. Egenskaperna kan variera helt mellan olika typer av nanopartiklar, även bland partiklarna och deras respektive material i bulk format på grund av deras unika storlekar, former och strukturer. READ MORE

  5. 4. Metal-Organic Frameworks for Carbon Dioxide Capture : Using Sustainable Synthesis Routes

    University essay from Uppsala universitet/Institutionen för materialvetenskap

    Author : Dhruva Deole; [2022]
    Keywords : Metal-Organic Frameworks; Metal-Organic Frameworks for Carbon Dioxide Capture; Sustainable Synthesis; 3D Printing of Metal-Organic Frameworks; Nanomaterials; Nanoporous Materials; Nanotechnology and Functional Materials;

    Abstract : Globally the combustion of fossil fuels has increased to a greater extent. Carbon dioxide (CO2) a major greenhouse gas isa by-product of such combustion practices. READ MORE

  6. 5. Reaction Mechanism between Chitosan and Cerium(VI) Ammonium Nitrate for Production of a Greener Poly(Vinyl Acetate) Adhesive

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Mårten Schollin; [2021]
    Keywords : Chitosan; Poly vinyl acetate ; Cerium IV ammonium nitrate ; Grafting; Reaction mechanism;

    Abstract : Poly(vinyl acetate) (PVAc) has a major application as an indoor wood adhesive. Low water stability is however, one of the greatest drawbacks of PVAc. By grafting PVAc from a chitosan (CS) backbone (CS-graft- PVAc) water stability of adhesive is increased while good mechanical and adhesive properties are retained. READ MORE