Surface Functionalities of Graphene Oxide with Varying Flake Size

Yee Yee Khine, Xiaojun Ren, Dewei Chu, Yuta Nishina, Tobias Foller, Rakesh Joshi

Research output: Contribution to journalArticlepeer-review


The size of graphene oxide (GO) flakes may change the chemical composition on the surface, thereby altering its intrinsic properties. The current work explored the variations of surface moieties with four different sizes: 0.3, 0.7, 20, and 42 μm2, which were obtained with morphological integrity under controlled fabrication technique. On the basis of comprehensive analyses, slight variations in the composition of each chemical moiety were observed. At the same time, slight fluctuations were found for both edge-to-basal plane (E/B) and carbon-to-oxygen (C/O) ratios with increasing flake size.

Original languageEnglish
JournalIndustrial and Engineering Chemistry Research
Publication statusAccepted/In press - 2022

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering


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