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Hydrogenation of single-walled carbon nanotubes

Anton Nikitin·Hirohito Ogasawara·David Mann·Reinhard Denecke·Zhiyong Zhang·Hongjie Dai·KJ Cho·Anders Nilsson
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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.

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Anton Nikitin, Hirohito Ogasawara, David Mann, Reinhard Denecke, Zhiyong Zhang, Hongjie Dai, KJ Cho, Anders Nilsson. 2005-10-14. Hydrogenation of single-walled carbon nanotubes. https://doi.org/10.1103/physrevlett.95.225507

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