Thermo-chemical metastability of multilayer epitaxial graphene oxide: Experiments and density functional theory calculations

Si Zhou, S. Kim, Y. Hu, C. Berger, W. De Heer, Elisa Riedo, Angelo Bongiorno

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Graphene oxide holds great promise for future applications in nano-technology. The chemistry of this material is not well understood. This understanding is crucial to enable future applications of graphene oxide. In this study, experiments and density functional theory calculations are combined to elucidate the chemical properties of multilayer graphene oxide obtained by oxidizing epitaxial graphene grown on silicon carbide via the Hummers method. This study shows that at room temperature as prepared graphene oxide films exhibit a uniform and homogeneous structure, include a minimal amount of edges and holes, and have an oxidation ratio of about 0.44. The comparison with density-functional calculations shows that graphene oxide includes a minimal amount of intercalated water molecules and well-defined fractions of epoxide and hydroxyl groups.

Original languageEnglish (US)
Title of host publicationNanocarbon Materials and Devices
Pages39-44
Number of pages6
DOIs
StatePublished - 2013
Event2012 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 9 2012Apr 13 2012

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1451
ISSN (Print)0272-9172

Other

Other2012 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period4/9/124/13/12

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Zhou, S., Kim, S., Hu, Y., Berger, C., De Heer, W., Riedo, E., & Bongiorno, A. (2013). Thermo-chemical metastability of multilayer epitaxial graphene oxide: Experiments and density functional theory calculations. In Nanocarbon Materials and Devices (pp. 39-44). (Materials Research Society Symposium Proceedings; Vol. 1451). https://doi.org/10.1557/opl.2012.1453