Hydrogen storage capacity of commercially available carbon materials at room temperature

Autor: Shigemitsu Tsutsui, Hisashi Kajiura, Koji Kadono, Masafumi Ata, Yosuke Murakami, M. Kakuta
Rok vydání: 2003
Předmět:
Zdroj: Applied Physics Letters. 82:1105-1107
ISSN: 1077-3118
0003-6951
DOI: 10.1063/1.1555262
Popis: 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 HiPco™ 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.
Databáze: OpenAIRE