Leaflet-heterostructures by MWCNT self-assembly following electrospinning.

Area of Science:

• Materials Science
• Nanotechnology

Background:

• Electrospinning typically yields 1D nanocarbon fibers with encapsulated nanocarbons.
• Previous work showed 2D graphene anisotropy retention near the electrospinning-electrospray boundary.

Purpose of the Study:

• To investigate network topology by reducing carrier polymer in multi-walled carbon nanotube (MWCNT) suspensions during electrospinning.
• To explore novel self-assembly mechanisms for MWCNT materials.

Main Methods:

• Electrospinning of MWCNT suspensions with reduced carrier polymer concentrations.
• Analysis of resulting network structures and self-assembly mechanisms.

Main Results:

• Unexpected formation of 2D leaflet meso-networks composed of laterally aligned MWCNTs.
• Proposed mechanism involving capillary force-driven MWCNT self-assembly activated by drying menisci.

Conclusions:

• This technique produces novel 2D MWCNT assemblies with potential for high surface-area coatings.
• The findings suggest new approaches for fabricating MWCNT materials in porous structures for catalytic and energy applications.