Sökning: "Jontransport"

Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet Jontransport.

  1. 1. Experimental studies of ion transport in cementitious materials under partially saturated conditions

    Författare :Nilla Olsson; Avdelningen för Byggnadsmaterial; []
    Nyckelord :Cement; Bruk; Betong; Jontransport; Fukttransport; Sorptionsisoterm; Tillsatsmaterial; Kiselstoft; Masugnsslagg; Ciment; Mortier; Béton; Transport ionique; Transport d humidité; Sorption de vapeur d eau; Additions minérales; Fumée de silice; Laitier de haut fourneau granulé moulu; Cement; Mortar; Concrete; Ion transport; moisture transport; Water vapor sorption; Supplementary cementitious materials SCMs ; Silica fume; Ground granulated blast furnace slag;

    Sammanfattning : Cement production is responsible for a significant portion of manmade CO2 emissions. This motivates the development of cementitious binders with a lower carbon footprint. Considering the emissions in a longer perspective, the durability of concrete structures is absolutely essential. LÄS MER

  3. 2. At the Mountains of Modeling : Multiscale Simulations of Desalination by Capacitive Deionization

    Författare :Johan Nordstrand; Joydeep Dutta; Oscar Tjernberg; Maarten Biesheuvel; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Capacitive Deionization; Desalination; Modeling; Multiscale; Simulation; Avsaltning; Kapacitiv Avjonisering; Modellering; Multiskala; Simulering; Material and Nano Physics; Material- och nanofysik; Physics; Fysik;

    Sammanfattning : More than 2 billion people are living in water-scarce areas. Meanwhile, there are enormous amounts of water in the salty oceans. Capacitive deionization (CDI) rises to the challenge with electrochemical cells for desalinating the water. As the CDI field expands, modeling becomes an increasingly important part of the development landscape. LÄS MER

  4. 3. Electrically Induced Debonding of Adhesives

    Författare :Simon Leijonmarck; Göran Lindbergh; Mats Johansson; Jinshan Pan; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; Kemiteknik;

    Sammanfattning : Electrically induced adhesive debonding is a process where an adhesive can be debonded at command with help of an applied voltage. To make this process function, the adhesive is  bonded between two metal substrates. In this study an epoxy adhesive is adhered between two aluminium foils forming a laminate structure. LÄS MER

  5. 4. Electrochemical Investigation of the Reaction Mechanism in Lithium-Oxygen Batteries

    Författare :Jonas Lindberg; Göran Lindbergh; Ann M. Cornell; Bryan McCloskey; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lithium-Oxygen Batteries; Lithium Mass Transport; Oxygen Solubility; Reaction Rate Law; Reaction Mechanism; Electrode Passivation; Ultramicroelectrodes; Electrochemical Quartz Crystal Microbalance; EQCM; Chemical Engineering; Kemiteknik;

    Sammanfattning : Lithium-oxygen batteries, also known as Lithium-air batteries, could possibly revolutionize energy storage as we know. By letting lithium react with ambient oxygen gas very large theoretical energy densities are possible. LÄS MER

  7. 5. Water-in-polymer Salt Electrolyte (WIPSE) for Sustainable Lignin Batteries

    Författare :Divyaratan Kumar; Xavier Crispin; Ziyauddin Khan; Yury Gogotsi; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Water-in-polymer salt electrolyte WiPSE ; Lignin batteries; Zn-ion batteries; Sustainability;

    Sammanfattning : Organic electrolytes are widely used in energy storage technologies, but they are known to have safety, cost, and eco friendliness concerns. Water based electrolytes do not have those issues but are limited by their narrow range potential range of operation to 1.2V. LÄS MER