Sökning: "Kemi med inriktning mot materialkemi"

Visar resultat 11 - 15 av 55 avhandlingar innehållade orden Kemi med inriktning mot materialkemi.

  1. 11. Surface modification of inorganic materials with graphene oxide : From solution to high-temperature synthesis

    Författare :Simon Tidén; Ulf Jansson; Mamoun Taher; Erik Lewin; Lars Nyborg; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Graphene; Graphene oxide; Coatings; Additive Manufacturing; Laser Powder Bed Fusion; Reactive Hot Pressing; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Sammanfattning : The use of graphene as an additive in materials is often challenging due to the agglomeration of the two-dimensional graphene sheets. An alternative additive is graphene oxide (GO), an oxidized form of graphene, which is easily dispersed in water. LÄS MER

  3. 12. Molecular Copper and Ruthenium Water Oxidation Electrocatalysts for Light-Driven Water Splitting

    Författare :Ludovico Riccardi; Sascha Ott; Rene Janssen; Jarl Van der Vlugt; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Water oxidation; Molecular catalyst; Electrocatalyst; Water splitting; Electrolyzer; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Sammanfattning : In recent years, there has been a growing awareness of the need to transition to renewable energy to mitigate the effects of climate change and reduce greenhouse gas emissions. Governments, businesses, and individuals are investing in renewable energy infrastructure and technologies to create a more sustainable energy future. LÄS MER

  4. 13. Functional Binders at the Interface of Negative and Positive Electrodes in Lithium Batteries

    Författare :Fabian Jeschull; Daniel Brandell; Gerrit Boschloo; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; binder; lithium-sulfur batteries; graphite; lithium-ion batteries; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Sammanfattning : In this thesis, electrode binders as vital components in the fabrication of composite electrodes for lithium-ion (LIB) and lithium-sulfur batteries (LiSB) have been investigated.Poly(vinylidene difluoride) (PVdF) was studied as binder for sulfur-carbon positive electrodes by a combination of galvanostatic cycling and nitrogen absorption. LÄS MER

  5. 14. Insights into dynamic covalent chemistry for bioconjugation applications

    Författare :Shujiang Wang; Oommen Varghese; Nicola Tirelli; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; dynamic covalent chemistry; reaction mechanism; hydrogel; bioconjugation; catalysis; Kemi med inriktning mot polymerkemi; Chemistry with specialization in Polymer Chemistry;

    Sammanfattning : Dynamic covalent chemistry (DCC) is currently exploited in several areas of biomedical applications such as in drug discovery, sensing, molecular separation, catalysis etc. Hydrazone and oxime chemistry have several advantages, such as mild reaction conditions, selectivity, efficiency, and biocompatibility and therefore, have the potential to be for bioconjugation applications. LÄS MER

  7. 15. Transition metal and alloy catalysts in the light of computational materials modelling

    Författare :Ageo Meier de Andrade; Peter Broqvist; Jolla Kullgren; Elsebeth Schröder; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; density functional theory; dispersion corrections; density functional analysis; transition metal; alloys; work function; lignin valorization; keto-enol tautomerization; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Sammanfattning : This thesis is built around two pillars. One is heterogeneous catalysis in the broader context of green chemistry. The focus here is on identifying catalytically active materials suitable for the valorization of renewable feedstocks. LÄS MER