Hydrogenation of single-walled carbon nanotubes

Abstract

Towards the development of a useful mechanism for hydrogen storage, we have studied the hydrogenation of single-walled carbon nanotubes with atomic hydrogen using core-level photoelectron spectroscopy and x-ray absorption spectroscopy. We find that atomic hydrogen creates C-H bonds with the carbon atoms in the nanotube walls and such C-H bonds can be com-pletely broken by heating to 600 oC. We demonstrate approximately 65+/-15 at % hydrogenation of carbon atoms in the single-walled carbon nanotubes which is equivalent to 5.1+/-1.2 weight % hydrogen capacity. We also show that the hydrogenation is a reversible process.

PRL, in press

References in corpus (2)

• Exo-hydrogenated Single Wall Carbon Nanotubes
• Effects of hydrogen adsorption on single wall carbon nanotubes: Metallic hydrogen decoration

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• Possible Room Temperature Ferromagnetism in Hydrogenated Carbon Nanotubes
• Structure and stability of small H clusters on graphene
• Hydrogen spillover and storage on graphene with single-site Ti catalysts
• Sublattice Segregation of Hydrogen Adsorbates in Carbon Nanotubes