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Size tunable synthesis of solution processable diamond nanocrystals.

Manik Mandal1, Fadi Haso, Tianbo Liu

  • 1Department of Chemistry, Lehigh University, Bethlehem, PA 18015, USA. kal205@lehigh.edu.

Chemical Communications (Cambridge, England)
|August 14, 2014
PubMed
Summary

Catalyst-free diamond nanocrystals were synthesized from nanoporous carbon using high pressure and high temperature (HPHT). These tunable, 50-200 nm nanocrystals are dispersible in organic solvents.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemistry

Background:

  • Nanoporous carbon materials offer unique precursors for advanced material synthesis.
  • Catalyst-free synthesis routes are desirable for high-purity nanomaterial production.

Purpose of the Study:

  • To develop a novel method for synthesizing diamond nanocrystals.
  • To characterize the properties of catalyst-free synthesized diamond nanocrystals.

Main Methods:

  • High-pressure and high-temperature (HPHT) synthesis.
  • Utilizing nanoporous carbon as a precursor.
  • Dynamic light scattering for property analysis.

Main Results:

  • Successfully synthesized diamond nanocrystals without catalysts.
  • Achieved tunable nanocrystal diameters ranging from 50 to 200 nm.
  • Demonstrated dispersibility in organic solvents like acetone.
  • Confirmed isotropic nature of the nanocrystals.

Conclusions:

  • Catalyst-free HPHT synthesis from nanoporous carbon is a viable route for producing tunable diamond nanocrystals.
  • The synthesized nanocrystals exhibit properties suitable for various applications requiring dispersible nanodiamonds.