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Updated: Apr 5, 2026

Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
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Nanostructured Scrolls from Graphene Oxide for Microjet Engines.

Kun Yao, Manoj Manjare, Christopher A Barrett

  • 1⊥Department of Mechanical and Aerospace Engineering, University of Texas, Arlington, Texas 76019, United States.

The Journal of Physical Chemistry Letters
|August 22, 2015
PubMed
Summary

Freestanding graphene oxide (GO) scrolls form spontaneously from layered heterostructures. Scroll size is tunable by metal film thickness, enabling applications like self-propelled microjet engines.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Surface Chemistry

Background:

  • Layered heterostructures of graphene oxide (GO) and bimetal coatings are prone to delamination.
  • Understanding the factors governing the formation of freestanding nanostructures is crucial for advanced material design.

Purpose of the Study:

  • To investigate the spontaneous formation of freestanding micrometer-sized scrolls from graphene oxide (GO)/bimetal heterostructures.
  • To explore methods for controlling the scroll dimensions and their potential functionalities.

Main Methods:

  • Fabrication of layered heterostructures with graphene oxide (GO) nanosheets and bimetal coatings (20-35 nm).
  • Induction of scroll formation via sonication and characterization of resulting structures.
  • Experimental and computational modeling to correlate material properties with scroll formation and diameter.
Keywords:
graphene oxidemultilayered heterostructurenanomotornanostructurescroll

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Main Results:

  • Heterostructures spontaneously detached from Si substrates, forming freestanding GO scrolls with GO on the exterior.
  • Scroll diameters were tunable by adjusting the thicknesses of the metal films.
  • The GO/Ti/Pt system demonstrated the potential for self-propelled microjet engines in H2O2 solutions.

Conclusions:

  • Material stresses and weak GO layer bonding drive spontaneous scroll formation.
  • Metal film thickness is a key parameter for controlling scroll dimensions.
  • These GO scrolls offer a platform for developing novel functional micro- and nanodevices.