Titanium carbide/carbon composite nanofibers prepared by a plasma process

Area of Science:

• Materials Science
• Nanotechnology
• Chemical Engineering

Background:

• Metal and metal carbide nanoparticles enhance carbon nanofibers' properties and applications.
• Organized composite nanofibers are crucial for advanced material development.

Purpose of the Study:

• To introduce a new, non-catalytic method for preparing organized metal carbide-carbon composite nanofibers.
• To demonstrate the synthesis of titanium carbide-carbon composite nanofibers on nanopatterned silicon substrates.

Main Methods:

• Nanopatterned silicon substrates were fabricated using laser interference lithography and deep reactive ion etching.
• A hybrid plasma process, combining physical vapor deposition and plasma-enhanced chemical vapor deposition, was employed.
• Characterization involved scanning electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, and transmission electron microscopy.

Main Results:

• Titanium carbide-carbon composite nanofibers were successfully grown on silicon lines.
• The study demonstrated control over nanofiber shape, microstructure, and chemical composition.
• Tunability was achieved by modifying plasma conditions during the hybrid plasma process.

Conclusions:

• A facile, non-catalytic method for synthesizing organized titanium carbide-carbon composite nanofibers was established.
• The developed technique offers precise control over nanofiber characteristics.
• This advancement expands possibilities for tailored nanomaterials in various applications.