Sökning: "copper oxide nanoparticles"

Hittade 5 uppsatser innehållade orden copper oxide nanoparticles.

  1. 1. A model for heterogenic catalytic conversion of carbon dioxide to methanol

    Kandidat-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Elin Johannesson; [2020]
    Nyckelord :Carbon dioxide; methanol; heterogeneous catalysis; zinc oxide; computational chemistry; density functional theory;

    Sammanfattning : Since our society became industrialised, the levels of carbon dioxide in our atmosphere have been steadily rising, to the point where it in early 2020 at is 413 ppm. The high concentration is causing several troubling effects worldwide because of the increase in mean temperature that it creates, which causes longer draughts, more severe floods, and rising seawater levels to name a few. LÄS MER

  3. 2. Plasmonic Effect of Metal Nanoparticles Deposited on Wide-Band Gap Metal Oxide Nanowire Substrate

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Mojtaba Gilzad Kohan; [2017]
    Nyckelord :plasmonic particles; nano wires; wide band gap semiconductors;

    Sammanfattning : The application of nanowires (NWs) in solar cells (SCs) is of great interest due to their new promising aspects established in nanoelectronics. Semiconductors associated with plasmonic metal nanoparticles (NPs) such as Silver (Ag), Gold (Au) and Copper (Cu), show enhanced performance in solid state light absorbing SCs owing to plasmonic characteristic of noble metal NPs. LÄS MER

  4. 3. Simulation of Metal and Metal Oxide Nanoparticle Sedimentation in Solution Using a Computational Model

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Sara Isaksson; [2016]
    Nyckelord :Nanoparticles; sedimentation; simulation; fractal dimension; aqueous environment; Nanopartiklar; sedimentering; simulering; fraktaldimension; vattenmiljö;

    Sammanfattning : Nanoparticles are used in many different applications because of their small size and unique properties. The usage is increasing rapidly, which will increase the nanoparticle exposure to the environment. LÄS MER

  5. 4. Solution-based and flame spray pyrolysis synthesis of cupric oxide nanostructures and their potential application in dye-sensitized solar cells

    M1-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi; Linköpings universitet/Tekniska fakulteten

    Författare :Narin Yousef; [2015]
    Nyckelord :Copper oxide; cupric oxide; nanoparticles; dye sensitized solar cells; Kemisk analysteknik; KA;

    Sammanfattning : The dye sensitized solar cell (DSSC) is a promising low-cost technology alternative to conventional solar cell in certain applications. A DSSC is a photo-electrochemical photovoltaic device, mainly composed of a working electrode, a dye sensitized semiconductor layer, an electrolyte and a counter electrode. LÄS MER

  7. 5. Optical Properties of Silica-Copper Oxide Thin Films Prepared by Spin Coating

    Kandidat-uppsats, Tillämpad optik

    Författare :Niklas Mårtensson; [2011]
    Nyckelord :ellipsometry; solar selective absorber; spin coating; thin films; copper oxide nanoparticles; optical modeling; sol-gel;

    Sammanfattning : Optical properties of copper oxide nanoparticles in a silica matrix thin film have been investigated. Films were prepared on Si substrates from a sol-gel by spin coating. Four samples with different thicknesses, from 14,5-109 nm, were fabricated. Optical properties were measured with Variable Angle Spectroscopic Ellipsometry. LÄS MER