Sökning: "Chemical exfoliation"

Visar resultat 1 - 5 av 20 avhandlingar innehållade orden Chemical exfoliation.

  1. 1. Multifunctional Carbon Foams by Emulsion Templating : Synthesis, Microstructure, and 3D Li-ion Microbatteries

    Författare :Habtom Desta Asfaw; Kristina Edström; Leif Nyholm; John R. Owen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Battery; Carbon; Electrochemical; Electrodeposition; Emulsion; Energy; Exfoliation; Foam; Lithium; Microbattery; Multifunctional; Nanoparticles; Polyaniline; Polymer; Power; Sol-gel; Storage; Structured; Three-dimensional; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Sammanfattning : Carbon foams are among the existing electrode designs proposed for use in 3D Li-ion microbatteries. For such electrodes to find applications in practical microbatteries, however, their void sizes, specific surface areas and pore volumes need be optimized. LÄS MER

  3. 2. Venturing Further into the Field of 2D Materials and their Laminated Parent Phases

    Författare :Pernilla Helmer; Johanna Rosén; Jonas Björk; Martin Dahlqvist; Hannu-Pekka Komsa; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Density Functional Theory; Bonding analysis; Themodynamical stability; Electronic band structure; Computational screening; Dynamical stability; Nanolaminate; MXene; 2D material; Boridene; Chemical exfoliation; Selective etching;

    Sammanfattning : The field of 2D materials is a relatively young and rapidly growing area within materials science, which is concerned with atomically thin states of matter. Because of their intrinsic 2D morphology, 2D materials have exceptionally high surface to weight or surface to volume ratio. LÄS MER

  4. 3. Aqueous Exfoliation of Transition Metal Oxides for Energy Storage and Photocatalysis Applications : Vanadium Oxide and Molybdenum Oxide Nanosheets

    Författare :Ahmed S. Etman; Junliang Sun; Yury Gogotsi; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; aqueous exfoliation; vanadium oxide nanosheets; molybdenum oxide nanosheets; energy storage; photocatalysis; Inorganic Chemistry; oorganisk kemi;

    Sammanfattning : Two-dimensional (2D) transition metal oxides (TMOs) are a category of materials which have unique physical and chemical properties compared to their bulk counterparts. However, the synthesis of 2D TMOs commonly includes the use of environmental threats such as organic solvents. LÄS MER

  5. 4. Liquid-Phase Exfoliation of Two-Dimensional Materials : Applications, deposition methods and printed electronics on paper

    Författare :Viviane Forsberg; Magnus Norgren; Luis Miguel Pereira Nunes; Mittuniversitetet; []
    Nyckelord :molybdenum disulfide MoS2 ; transition metal dichalcogenide TMD ; thin films; inkjet printing; 2D inks; liquid-phase exfoliation; shear exfoliation; printed electronics; organic electronics; PEDOT:PSS; photoresponse; photocurrent; cathodoluminescence;

    Sammanfattning : After the unprecedented success of graphene research, other materials that can also be exfoliated into thin layers, like Transition metal dichalcogenides (TMDs) such as molybdenum disulfide (MoS2), have also become the subjects of extensive studies. As one of the most promising methods for large scale production of such materials, liquid-phase exfoliation (LPE) has also been the subject of extensive research and is maturing as a field to the point that devices using additive manufacturing and printed nanosheets are often reported. LÄS MER

  7. 5. Exploring Biopolymer-Clay Nanocomposite Materials by Molecular Modelling

    Författare :Yan Wang; Hans Ågren; Vincenzo Carravetta; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; bio-nanocomposite; interfacial mechanism; binding affinity; dimensional stability; counterions; hydration; stress-strain behavior; xyloglucan; chitosan; chitin; molecular dynamics; montmorillonite.; 生物复合材料，界面机理，分子间亲和力，材料尺寸稳定性，抗衡离子，水合作用，应力应变表现， 木葡聚糖，壳聚糖，甲壳素，分子动力学模拟，蒙脱土; bio-nanokompositer; gränsytor; affinitet; dimensionsstabilitet; jonhydrering; spännings-töjningsbeteende; xyloglukan; kitosan; kitin; molekyldynamisk; montmorillonit.; Kemi; Chemistry; Fiber- och polymervetenskap; Fibre and Polymer Science; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : In this thesis, bio-nanocomposites made from two alternative biopolymers and montmorillonite (Mnt) clay have been investigated by molecular modelling. These biopolymers are xyloglucan (XG) and chitosan (CHS), both of which are abundant, renewable, and cost-effective. LÄS MER