Sökning: "Coordination Polymer"

Hittade 5 uppsatser innehållade orden Coordination Polymer.

  1. 1. Investigation of stability in high salt polymer electrolytes for sodium batteries

    Master-uppsats, Uppsala universitet/Strukturkemi

    Författare :Fengnan Yuan; [2022]
    Nyckelord :;

    Sammanfattning : Poly(trimethylene carbonate)–sodium bis(fluorosulfonyl)imide system shows a promising performance as polymer-in-salt electrolytes. The polymer electrolytes with salts concentration from 62% to 71% were tested through DSC, FTIR, EIS and constant current cycling. The solubility of the salts varies in different salts in PTMC. LÄS MER

  3. 2. Photochemistry of Copper Coordination Complexes

    Kandidat-uppsats, KTH/Kemiteknik

    Författare :Amanda Blad; Helena Glisén; Filippa Ludvig; [2021]
    Nyckelord :Copper Halide Organic Complex; Time-Resolved Photoluminescence; Metal-organic Framework; Coordination Polymer; Thin Film Solar Cell; Koppar halid organiska komplex; tidsberoende fotoluminesens; metallorganiska ramverk; koordinationspolymer; tunnfilmssolcell.;

    Sammanfattning : The United Nations have set a number of sustainability goals, Agenda 2030, in order to combat the worlds largest challenges and injustices. The energy market is one of these urgent issues which must be solved. Solar energy is expected to be the fastest growing energy source in the future energy mix. LÄS MER

  4. 3. Polymeric single Li+-ion conductors: preparation and characterisation

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Hannes Nederstedt; [2016]
    Nyckelord :single ion conductors; electrolytes; polymers; lithium ion batteries; polymer technology; polymerteknologi; Chemistry; Technology and Engineering;

    Sammanfattning : Lithium-ion batteries are a common type of light-weight, rechargeable batteries. There are safety concerns because these batteries typically use an organic solvent electrolyte which presents fire hazards. By using dry polymer electrolytes, the fire hazards can be eliminated. LÄS MER

  5. 4. Synthesis of polycarbonate polymer electrolytes for lithium ion batteries and study of additives to raise the ionic conductivity

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Jonas Andersson; [2015]
    Nyckelord :battery materials; polymer electrolyte; PTMC; poly trimethylenecarbonate ; LiTFSI; nanofillers; batterimaterial; polymerelektrolyt; PTMC; polytrimetylkarbonat; LiTFSI; nanofillers;

    Sammanfattning : Polymer electrolyte films based on poly(trimethylene carbonate) (PTMC) mixed with LiTFSI salt in different compositions were synthesized and investigated as electrolytes for lithium ion batteries, where the ionic conductivity is the most interesting material property. Electrochemical impedance spectroscopy (EIS) and DSC were used to measure the ionic conductivity and thermal properties, respectively. LÄS MER

  7. 5. Study of ethylene/propylene polymerization, using a 4th generation Ziegler-Natta catalyst: Effect of external donor and feed ratio on polymerization

    Uppsats för yrkesexamina på avancerad nivå, KTH/Skolan för kemivetenskap (CHE)

    Författare :Seyedeh Shafagh Dehghani; [2012]
    Nyckelord :Ziegler-Natta catalysts; Electron Donor; Copolymerization; Polyolefins;

    Sammanfattning : A fourth generation multiple site Ziegler-Natta catalyst was used to synthesize ethylene and propylene homo-and copolymers in the presence of hydrogen. This type of catalysts produce polymers with broader molecular weight distribution (MWD), chemical composition distribution (CCD) and stereoregularity than other coordination polymerization catalysts since it has more than one active site. LÄS MER