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Hexagonal boron nitride exfoliation and dispersion.

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Dispersing two-dimensional hexagonal boron nitride (hBN) nanostructures is key to unlocking their potential. This review covers various methods, including solvents and functionalization, for effective hBN dispersion and material fabrication.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemistry

Background:

  • Two-dimensional hexagonal boron nitride (hBN) nanostructures possess unique properties.
  • Fabricating macroscopic materials from hBN requires exfoliation and dispersion.

Purpose of the Study:

  • To provide a comprehensive review of hBN dispersion methods.
  • To discuss the properties of exfoliated hBN sheets and their dispersions.

Main Methods:

  • Review of various dispersion techniques for hBN.
  • Analysis of methods including solvents, covalent functionalization, acids/bases, surfactants, polymers, biomolecules, intercalating agents, and thermal expansion.

Main Results:

  • Detailed discussion of different hBN dispersion approaches.
  • Evaluation of the properties of exfoliated hBN sheets and resulting dispersions.

Conclusions:

  • Effective dispersion is crucial for utilizing hBN's properties.
  • A wide array of methods exists for hBN dispersion, each with specific advantages.