TITLE

Hydrogen storage capacity of commercially available carbon materials at room temperature

AUTHOR(S)
Kajiura, H.; Tsutsui, S.; Kadono, K.; Kakuta, M.; Ata, M.; Murakami, Y.
PUB. DATE
February 2003
SOURCE
Applied Physics Letters;2/17/2003, Vol. 82 Issue 7, p1105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The hydrogen storage capacity of five types of commercially available carbon materials with different nanostructures was measured at up to 8 MPa at room temperature using an apparatus based on a volumetric method with an error of less than 0.04 wt %/gr. The highest storage capacity of 0.43 wt % was obtained for purified HiPcoâ„¢ single-walled carbon nanotubes (SWNTs). In the SWNTs, the hydrogen density in pores with a diameter of less than 1 nm was estimated to be a 0.022 g/ml, which corresponds to 31% of the density of liquid hydrogen. Issues in the development of carbon-based hydrogen storage media are discussed.
ACCESSION #
9070278

 

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