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Hydrogen Storage in High Surface Area Carbon Nanotubes Produced by Catalytic Chemical Vapor Deposition

Bacsa, Revathi and Laurent, Christophe and Morishima, Ryuta and Suzuki, Hiroshi and Le Lay, Mikako Hydrogen Storage in High Surface Area Carbon Nanotubes Produced by Catalytic Chemical Vapor Deposition. (2004) The Journal of Physical Chemistry B, 108 (34). 12718-12723. ISSN 1520-6106

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Official URL: http://dx.doi.org/10.1021/jp0312621

Abstract

Carbon nanotubes, mostly single- and double-walled, are prepared by a catalytic chemical vapor deposition method using H2-CH4 atmospheres with different CH4 contents. The maximum hydrogen storage at room temperatures and 10 MPa is 0.5 wt %. Contrary to expectations, purification of the carbon nanotube specimens by oxidative acid treatments or by heating in inert gas decreases the hydrogen storage. Decreasing the residual catalyst content does not necessarily lead to an increase in ASH. Moreover, increasing the specific surface area does not necessarily increase the hydrogen storage capacity. There seems to be a correlation between the pore volume at low pore diameters (<3 nm) and the hydrogen storage capacity. Contribution from nanoscale disordered carbon to the hydrogen storage cannot be ruled out.

Item Type:Article
Additional Information:Thanks to the American Chemical Society. The definitive version is available at http://pubs.acs.org/doi/abs/10.1021/jp0312621
HAL Id:hal-00920911
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Toyota Motor Europe (BELGIUM)
Other partners > Toyota Motor Corporation (JAPAN)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
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Deposited By: cirimat webmestre
Deposited On:19 Dec 2013 13:05

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