Novel hydrogen storage properties of MoS2 nanotubes

Multi-wall MoS2 nanotubes were prepared using a catalyzed thermal decomposition of (NH4)(2)MOS4. The as synthesized nanotubes were treated with 5 M KOH solution at 50 degreesC for 1 h. These two nanotubes were characterized by XRD, SEM, TEM/HRTEM, BET, XPS. CV and charge-discharge measurements. The results show that MoS2 nanotubes can store relatively large amounts of hydrogen by gaseous and electrochemical storage. The adsorption-desorption reactions are highly reversible at the temperature of 25 degreesC, implying that these nanotubes are promising materials for hydrogen storage. (C) 2003 Elsevier B.V. All rights reserved.