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Exfoliation of titanium nitride using a non-thermal plasma process
Priscila Jussiane Zambiazi1, Dolores Ribeiro Ricci Lazar1, Larissa Otubo1
1Instituto de Pesquisas Energéticas e Nucleares, IPEN/CNEN-SP, Av. Prof. Lineu Prestes, 2242 Cidade Universitária, São Paulo, SP, CEP 05508-000, Brazil.
Beilstein Journal of Nanotechnology
|June 18, 2024
Summary
Researchers developed a novel non-thermal plasma method to exfoliate titanium nitride (TiN) powders. This environmentally friendly technique expands TiN structures while preserving their crystal integrity for advanced material applications.
Area of Science:
- Materials Science
- Plasma Physics
- Nanotechnology
Background:
- Titanium nitride (TiN) is a critical ceramic material with diverse applications.
- Exfoliation of TiN is challenging, limiting its use in advanced materials.
- Novel methods are needed to produce high-quality exfoliated TiN.
Purpose of the Study:
- To introduce a novel, rapid, and environmentally friendly non-thermal plasma method for TiN exfoliation.
- To investigate the structural and crystallographic changes in TiN during plasma exfoliation.
- To demonstrate the potential of exfoliated TiN for advanced material applications.
Main Methods:
- Utilized a non-thermal plasma generated by an electric arc in nitrogen at room temperature.
- Exposed titanium nitride (TiN) powders to ionized nitrogen species.
- Characterized exfoliated TiN using transmission electron microscopy (TEM), X-ray diffraction (XRD), and Raman spectroscopy.
Main Results:
- Achieved successful exfoliation of TiN powders via non-thermal plasma treatment.
- Observed an increase in the (200) crystal plane d-spacing from 2.08 to 3.09 Å.
- Retained the cubic crystal structure of TiN, reduced crystallite size, and observed altered Raman vibrational modes.
Conclusions:
- The non-thermal plasma method is effective for exfoliating TiN structures.
- The method preserves the essential cubic crystal structure of TiN.
- This innovative approach offers promising avenues for developing advanced TiN-based materials.
