Please use this identifier to cite or link to this item: https://doi.org/10.1126/science.285.5424.91
Title: High H2 uptake by alkali-doped carbon nanotubes under ambient pressure and moderate temperatures
Authors: Chen, P. 
Wu, X. 
Lin, J. 
Tan, K.L. 
Issue Date: 2-Jul-1999
Source: Chen, P., Wu, X., Lin, J., Tan, K.L. (1999-07-02). High H2 uptake by alkali-doped carbon nanotubes under ambient pressure and moderate temperatures. Science 285 (5424) : 91-93. ScholarBank@NUS Repository. https://doi.org/10.1126/science.285.5424.91
Abstract: Lithium- or potassium-doped carbon nanotubes can absorb ~20 or ~14 weight percent of hydrogen at moderate (200°to 400°C) or room temperatures, respectively, under ambient pressure. These values are greater than those of metal hydride and cryoadsorption systems. The hydrogen stored in the lithium- or potassium-doped carbon nanotubes can be released at higher temperatures, and the sorption-desorption cycle can be repeated with little decrease in the sorption capacity. The high hydrogen-uptake capacity of these systems may be derived from the special open-edged, layered structure of the carbon nanotubes made from methane, as well as the catalytic effect of alkali metals.
Source Title: Science
URI: http://scholarbank.nus.edu.sg/handle/10635/96781
ISSN: 00368075
DOI: 10.1126/science.285.5424.91
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