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Neue Kohlenstoffnanomaterialien aus massenselektierten molekularen Fragmenten

Weippert, Jürgen

Abstract (englisch):
This work presents the results of various investigations regarding novel carbon nanomaterials. The general strategy to generate these materials was the use of the Low Energy Cluster Beam Deposition method which consists of the ionization and fragmentation of sublimable molecules in the gas phase followed by mass selection and soft-landing of the generated fragment ions on conducting or semiconducting surfaces. Also, the properties
of already existing materials were modified by thermal treatment, doping with alkali metals and oxidation with atomic and molecular oxygen.
This work contains studies concerning the following issues:
- a series of measurements in which the binding energies between polyaromatic hydrocarbons (PAHs) and HOPG were measured by temperature programmed desorption in order to determine the graphite interlayer cohesion energy
- the generation of PAH oligomers by deposition of dehydrogenated PAH fragments
- a comparative study on the reactivity of various PAHs with atomic oxygen and also oxidized HOPG surfaces in order to explore the mediating role of these surfaces
- an investigation of the efficiency and side reactions of the HF limination from fluorinated PAHs which are designed as precursors to generate curved nanostructures from planar molecules
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Volltext §
DOI: 10.5445/IR/1000076200
Veröffentlicht am 07.11.2017
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Physikalische Chemie (IPC)
Publikationstyp Hochschulschrift
Publikationsjahr 2017
Sprache Deutsch
Identifikator urn:nbn:de:swb:90-762007
KITopen-ID: 1000076200
Verlag Karlsruher Institut für Technologie (KIT)
Umfang VI, 223 S.
Art der Arbeit Dissertation
Fakultät Fakultät für Chemie und Biowissenschaften (CHEM-BIO)
Institut Institut für Physikalische Chemie (IPC)
Prüfungsdatum 18.10.2017
Referent/Betreuer Prof. M. M. Kappes
Schlagwörter Kohlenstoffnanomaterialien, Fullerene, Kohlenstoffnanoröhren, Graphen, Graphit, polyaromatische Kohlenwasserstoffe, PAK, carbon nanomaterials, fullerenes, nanotubes, graphene, graphite, polyaromatic hydrocarbons, PAH, UPS, XPS, TPD, Raman, STM, AFM, SPEM, ESCA, IMS, Adsorption, Desorption, Spektroskopie
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