H2 uptake and synthesis of the Li-dispersed manganese oxide nanotubes

J Nanosci Nanotechnol. 2007 Nov;7(11):4033-6. doi: 10.1166/jnn.2007.081.

Abstract

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adsorption
  • Colloids / chemistry*
  • Crystallization / methods*
  • Hydrogen / chemistry*
  • Lithium / chemistry*
  • Macromolecular Substances / chemistry
  • Manganese Compounds / chemistry*
  • Materials Testing
  • Molecular Conformation
  • Nanotechnology / methods*
  • Nanotubes / chemistry*
  • Nanotubes / ultrastructure*
  • Oxides / chemistry*
  • Particle Size
  • Surface Properties

Substances

  • Colloids
  • Macromolecular Substances
  • Manganese Compounds
  • Oxides
  • manganese oxide
  • Hydrogen
  • Lithium