Sökning: "Ray Grön"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Ray Grön.

  1. 1. Förekomsten av tungmetaller i Grön betong : En studie om tungmetaller i grön betong jämfört med Naturvårdsverketsriktlinjer.

    M1-uppsats, Karlstads universitet

    Författare :Ali masih Heidari; Ehsan Hashemi; [2023]
    Nyckelord :Green concrete; Grön betong; Tungmetaller; Merit; Anläggningscement FA;

    Sammanfattning : Examensarbetet som omfattar 22,5 högskolepoäng har utförs som den slutliga delen avhögskoleingenjörsprogrammet i byggteknik, inriktning husbyggnad vid KarlstadsUniversitet.  Hållbarhet är ett viktigt ämne som berör företag av alla slag. Ingen bransch kan undvika attfundera över hur de kan främja hållbarhet. LÄS MER

  3. 2. Frontier materials at the air-liquid interface: Self-assembly of green ionic liquids

    Kandidat-uppsats, KTH/Yt- och korrosionsvetenskap

    Författare :Ulrika Karlson; Morgan Ölander; Fernando Zevallos; [2021]
    Nyckelord :Ionic liquids; Green chemistry; X-ray reflectivity; AIR-liquid interface; Self assembly; Jonvätskor; Grön kemi; Självorganisation;

    Sammanfattning : The interfacial structuring of three non-halogenated ionic liquids was examined at the air-liquid interface for both dry and humid condition by analysis of X-ray reflectometry data using a slab model approach. The aim was to investigate the effect of humidity on the air-liquid interface. LÄS MER

  4. 3. Graphene Quantum Dots as Fluorescent and Passivation Agents for Multimodal Bioimaging

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Nüzhet Inci Kilic; [2021]
    Nyckelord :graphene quantum dots; hybrid nanoparticles; x-ray fluorescence contrast agents; multimodal bioimaging; grafen-kvantprickar; hybrida nanopartiklarna; multimodal bioavbildning; röntgenfluorescens kontrastmedel;

    Sammanfattning : Zero-dimensional graphene (carbon) quantum dots have been drawing attention in bio-related applications since their discovery, especially for their optical properties, chemical stability, and easily modifiable surface.  This thesis focuses on the green synthesis of nitrogen-doped graphene quantum dots (GQDs) for dual-mode bioimaging with X-ray fluorescence (XRF) and optical fluorescence. LÄS MER

  5. 4. Iron-catalyzed graphitization of biochar to produce graphitic carbon materials

    Master-uppsats, KTH/Materialvetenskap

    Författare :Ziyi Shi; [2021]
    Nyckelord :graphite; biochar; catalyst; catalytic graphitization; grafit; biokol; katalysator; katalytisk grafitisering;

    Sammanfattning : Demand for high-quality graphite is expected to experience an extraordinary growth rate, in large part due to its wide range of industrial applications such as adsorbents, lubricants, electrodes, etc. This thesis developed a novel sustainable approach to produce green-graphite materials by applying biochar, acarbon-rich valuable by-product obtained from biomass, as a carbon precursor. LÄS MER

  7. 5. Development of Novel (Cu,Fe)3O4 Coatings for AISI 441 Solid Oxide Cell Interconnects : Coating optimization and long-term study

    Master-uppsats, KTH/Materialvetenskap

    Författare :Line Larby; [2020]
    Nyckelord :SOC; SOFC; interconnect; Cr evaporation; Cu-Fe coatings; spinel; SOFC; SOC; interkonnektor; bipolär platta; Cr-förångning; Cu-Fe-beläggningar; spinell;

    Sammanfattning : As current environmental challenges are gaining increased attention, development of clean energy solutions is becoming one of the essential strategies to keep within the boundaries of established environmental policies. Solid oxide cell (SOC) technology can provide clean energy conversion and storage when hydrogen is the energy carrier. LÄS MER