ETD

Archivio digitale delle tesi discusse presso l'Università di Pisa

Tesi etd-04292022-180337


Tipo di tesi
Tesi di laurea magistrale
Autore
MACILI, AURELIANO
URN
etd-04292022-180337
Titolo
Hydrogen storage in three-dimensional arrangement of epitaxial graphene conformally grown on porousified SiC
Dipartimento
INGEGNERIA CIVILE E INDUSTRIALE
Corso di studi
MATERIALS AND NANOTECHNOLOGY
Relatori
relatore Veronesi, Stefano
relatore Heun, Stefan
Parole chiave
  • tds
  • 3d
  • graphene
  • hydrogen
  • storage
Data inizio appello
03/06/2022
Consultabilità
Non consultabile
Data di rilascio
03/06/2025
Riassunto
Production of a novel three-dimensional graphene nanostructure conformally grown on a porous 4H SiC wafer and characterization of its hydrogen storage capabilities. The investigation aims at determining the role of the substrate, as well as the effect of three-dimensionality on hydrogen intake. Hydrogen loading was conducted using molecular species as well as individual atoms. The different behavior in the two scenarios was used to gain insight on the catalytic processes taking place on the structure surface. Thermal Desorption spectroscopy (TDS) measurements were conducted on the samples after hydrogen deposition and allowed the detection of chemisorption and physisorption signals. An alternative TDS procedure was also used to study the effect of the three-dimensional topography of the structure on the desorption. Surface characterization of the sample was performed via STM, Raman spectroscopy and LEED
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