Electrochemical investigations on organometallic compounds containing group 14 elements

Judith Maja Biedermann

Publikation: StudienabschlussarbeitDiplomarbeitForschung

Abstract

In this work mainly the influence of octaphenyl-cyclotetrasilane (Si4Ph8) and decaphenyl-cyclopentasilane (Si5Ph10) on the capacity of graphite in lithium-ion half-cells has been tested. For this purpose, the silanes were pretreated differently depending on the preparation procedure of the electrodes used. Pretreatments included pyrolysis of the silanes, mixing and/or ball-milling of the same with graphite, polymeric binder, carbon and solvent. Also, first experiments on the influence of aryl-substituted stannanes such as mesityltin trihydride (MesSnH3) or naphthyltin trihydride (NaphSnH3, with and without in situ polymerization by the amine base tetramethylethylenediamine (TMEDA)) and perphenylated germanium rings (octaphenyl-cyclotetragermane Ge4Ph8, decaphenyl-cyclopentagermane Ge5Ph10) on the capacity of graphite were performed. Furthermore, synthesis of dichloro-(1-naphthyl)(phenyl)silane as a precursor material to cyclic polysilanes was conducted.
Schlagwörter novel anode materials for Li-ion batteries; polystannanes; cyclopolysilanes; cyclopolygermanes
Spracheenglisch
Betreuer/-in / Berater/-in
  • Uhlig, Frank, Betreuer
  • Hanzu, Ilie, Berater
StatusVeröffentlicht - 17 Dez 2014

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Organometallic Compounds
Silanes
Graphite
Polysilanes
Germanium
Ball milling
Lithium
Amines
Binders
Anodes
Pyrolysis
Carbon
Polymerization
Ions
Electrodes
Experiments

Schlagwörter

    Dies zitieren

    Electrochemical investigations on organometallic compounds containing group 14 elements. / Biedermann, Judith Maja.

    2014. 53 S.

    Publikation: StudienabschlussarbeitDiplomarbeitForschung

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    AB - In this work mainly the influence of octaphenyl-cyclotetrasilane (Si4Ph8) and decaphenyl-cyclopentasilane (Si5Ph10) on the capacity of graphite in lithium-ion half-cells has been tested. For this purpose, the silanes were pretreated differently depending on the preparation procedure of the electrodes used. Pretreatments included pyrolysis of the silanes, mixing and/or ball-milling of the same with graphite, polymeric binder, carbon and solvent. Also, first experiments on the influence of aryl-substituted stannanes such as mesityltin trihydride (MesSnH3) or naphthyltin trihydride (NaphSnH3, with and without in situ polymerization by the amine base tetramethylethylenediamine (TMEDA)) and perphenylated germanium rings (octaphenyl-cyclotetragermane Ge4Ph8, decaphenyl-cyclopentagermane Ge5Ph10) on the capacity of graphite were performed. Furthermore, synthesis of dichloro-(1-naphthyl)(phenyl)silane as a precursor material to cyclic polysilanes was conducted. Schlagwörter novel anode materials for Li-ion batteries; polystannanes; cyclopolysilanes; cyclopolygermanes

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    KW - cyclopolysilanes

    KW - cyclopolygermanes

    M3 - Diploma Thesis

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