H2 uptake and synthesis of the Li-dispersed manganese oxide nanotubes.
Well aligned Li-dispersed manganese oxide nanotubes were prepared using LiNO3, Mn(NO3)2 x xH2O and an anodic aluminum oxide template by solvent-free method for potential applications in H2 storage. The obtained nanotubes were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The analyses revealed the Mn2O3 nanotubes to have a cubic structure with a uniform length, 40-50 nm in wall thickness and 250 +/- 10 nm in the outer diameter. The level of H2 adsorption was determined using the gravimetric method. The Li-dispersed manganese oxide nanotubes showed a 0.26 wt% for the amount of hydrogen adsorption at 77 K under 4.5 MPa.
Lee
Jin Bae
JB
Energy Nano Material Team, Korea Basic Science Institute, Daejeon 305-333, Korea.
Lee
Soon Chang
SC
Kim
Hae Jin
HJ
D000327:Adsorption; D003102:Colloids / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D006859:Hydrogen / Q000737:chemistry*; D008094:Lithium / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D017895:Manganese Compounds / Q000737:chemistry*; D008422:Materials Testing; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D010087:Oxides / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties
D003102:Colloids; D046911:Macromolecular Substances; D017895:Manganese Compounds; D010087:Oxides; C027424:manganese oxide; D006859:Hydrogen; D008094:Lithium