Promising counterparts of the multiwall carbon nanotubesare the nitrogen or boron doped carbon nanotubes (N- or Bdoped CNT) which have a bamboo like structure. If nitrogen is incorporated intothe CNT structure three main types of nitrogen can be differentiated: pyridinic, pyrrolic and graphitic .The pyridinic and the pyrrolic type nitrogens are bonded totwo carbon atoms as a member of a six or five-membered ring,respectively.