While carbon nanotubes (CNT) and carbon nanofibers (CNF) are both hollow (in case of hollow carbon fibers), nanometer in scale, and produced in a similar manner, there are distinct differences which significantly impact their performance and ability to be processed.
This is a question of size. Carbon nanotubes can be single-walled, but also multi-walled, but are those having the lowest diameter and the most defectless structure. Carbon nanofibres are much bigger, thus sometimes loose the concentrical structure, and also they can have a number of defects which are mostly absent from nanotubes. Hence the outstanding mechanical properties of nanotubes, especially the single-walled ones. Carbon fibres are even bigger (diameters of a few microns), are thus more disordered, less oriented, with more defects, etc., hence their lower mechanical properties (which can remain quite high though).
Alain
Is this same for all nanofibers structure and nanotubes?? like ZnO NF and NT, TiO2 NF and NT
You may see this link:
http://www.inno-x.ch/en/153/Nano-Materials.htm
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