Nanotubes, like single-walled carbon nanotubes, MWCNT and carbon nanotubes, are subject to ongoing research as shown in figure 1 and 2. A lot of the reported synthesis procedures include anodization, self-assembling or hydrothermal synthesis during the preparation. Amongst the most actively researched properties of nanotubes are cyclic voltammogram, Nyquist plot and band gap. Very often nanotubes are characterized by either transmission electron microscopy, scanning electron microscopy or X-ray diffraction. High impact articles within this field report applications in catalysis, drug delivery or energy storage.