Abstract

Over the last decade, there has been a significant interest of the scientific community in the synthesis of carbonaceous materials due to its wide range of application, as well on the hydrogen storage problem. Since the discovery of carbon nanotubes by Iijima, carbon nanotubes have been one of the candidate nanomaterials for hydrogen storage. However, experimental studies on hydrogen storage capacity of carbon nanotubes are still very few, and the mechanism of how hydrogen is stored into carbon nanotubes and the factors affecting the adsorption remains still unclear. In this chapter, we describe in detail the synthesis, purification, structural characterization, and hydrogen adsorption capabilities of multi-walled carbon nanotubes (MWCNTs) obtained by an aerosol-assisted chemical vapor deposition (AACVD).