Deutsch
 
Benutzerhandbuch Datenschutzhinweis Impressum Kontakt
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

The influence of intercalated oxygen on the properties of graphene on polycrystalline Cu under various environmental conditions

MPG-Autoren
/persons/resource/persons37960

Wang,  Zhu-Jun
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22227

Weinberg,  Gisela
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22243

Willinger,  Marc Georg
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons54379

Greiner,  Mark
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21743

Knop-Gericke,  Axel
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22071

Schlögl,  Robert
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)

c4cp04025b.pdf
(Verlagsversion), 4MB

Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Blume, R., Kidambi, P. R., Bayer, B. C., Weatherup, R. S., Wang, Z.-J., Weinberg, G., et al. (2014). The influence of intercalated oxygen on the properties of graphene on polycrystalline Cu under various environmental conditions. Physical Chemistry Chemical Physics, 16(47), 25989-26003. doi:10.1039/C4CP04025B.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0024-32F9-6
Zusammenfassung
Intercalation of oxygen at the interface of graphene grown by chemical vapour deposition and its polycrystalline copper catalyst can have a strong impact on the electronic, chemical and structural properties of both the graphene and the Cu. This can affect the oxidation resistance of the metal as well as subsequent graphene transfer. Here, we show, using near ambient pressure X-ray photoelectron spectroscopy (NAP-XPS), X-ray absorption near edge spectroscopy (XANES), energy dispersive X-ray spectroscopy (EDX) and (environmental) scanning electron microscopy (ESEM) that both the oxygen intercalation and de-intercalation are kinetically driven and can be clearly distinguished from carbon etching. The obtained results reveal that a charge transfer between as grown graphene and Cu can be annulled by intercalating oxygen creating quasi-free-standing graphene. This effect is found to be reversible on vacuum annealing proceeding via graphene grain boundaries and defects within the graphene but not without loss of graphene by oxidative etching for repeated (de-)intercalation cycles.