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Interfiber Isolation Synthesis Strategy via Nanosheet Wrapping toward 3D Carbon Nanofiber Networks for
Guolin Peng1, Zhijiang Zhang1, Junru Wang1
1Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China.
ACS Applied Materials & Interfaces
|May 11, 2026
Summary
Researchers developed a new method using MXene nanosheets to create robust carbon nanofibers (CNFs) from natural materials. This technique prevents fiber welding, enabling high-performance 3D CNF solids for advanced energy storage applications.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Growing demand for flexible, conductive materials in wearables and functional fabrics.
- Challenges in assembling carbon nanofibers (CNFs) into robust 3D structures without welding during carbonization.
Purpose of the Study:
- To develop a scalable strategy for fabricating 3D carbon nanofiber solids with controlled morphology and enhanced properties.
- To utilize 2D nanomaterials for inter-fiber isolation during CNF synthesis.
Main Methods:
- Proposed an "inter-fiber isolation" strategy using MXene nanosheet wrapping of natural nanofibrils.
- Controlled CNF diameter by adjusting the MXene ratio.
- Fabricated free-standing macroscopic 3D CNF solids.
Main Results:
- Preserved nanofibrous features with tunable diameters (hundreds of nanometers down to ~15 nm).
- Achieved superior electrical conductivity (~34.65 S m⁻¹) in 3D CNF solids.
- Demonstrated excellent supercapacitor performance with high rate capability and cycling stability (340,000 cycles).
Conclusions:
- The MXene-assisted strategy provides a practical method for fabricating robust carbon nanostructures.
- This approach enables efficient energy storage solutions using 3D CNF solids.
- The nanosheet wrapping technique is extendable to other 2D nanomaterials like graphene oxide.
