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Preparation of Wrinkled Graphene Oxide Using Solution Method.

Seungdu Kim1, Kook In Han1, In Gyu Lee1

  • 1Department of Materials Engineering, Korea Aerospace University, Goyang, 412-791, South Korea.

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|February 15, 2018
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Summary

Researchers developed wrinkled graphene oxide (WGO) using a solution method. This novel WGO material offers a larger surface area, accelerating the development of advanced sensors and energy charging devices.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Surface Chemistry

Background:

  • Graphene oxide (GO) is a key material in nanotechnology.
  • Surface morphology significantly impacts material properties and applications.
  • Controlling GO surface features is crucial for advanced applications.

Purpose of the Study:

  • To develop a method for creating wrinkled graphene oxide (WGO).
  • To investigate the relationship between GaCl3 concentration and wrinkle formation.
  • To characterize the structural and chemical changes associated with WGO formation.

Main Methods:

  • Solution-based synthesis of wrinkled graphene oxide (WGO).
  • Scanning Electron Microscopy (SEM) and Atomic Force Microscopy (AFM) for morphological analysis.
  • Fourier Transform Infrared Spectroscopy (FTIR) and Raman Spectroscopy for chemical characterization.

Main Results:

  • Sub-micrometer wrinkles were successfully generated on the GO surface.
  • Wrinkle density increased with higher GaCl3 concentrations in the solution.
  • FTIR and Raman spectroscopy confirmed the presence of additional OH bonds on WGO.

Conclusions:

  • The solution method effectively produces WGO with controllable wrinkle formation.
  • The presence of OH bonds is linked to the observed wrinkling.
  • WGO's enhanced surface area is beneficial for sensor and energy storage device development.