Hydrogen Spillover from a Metal Oxide Catalyst onto Carbon Nanotubes -- Implications for Hydrogen Storage
Hydrogen storage on multiwalled nanotubes (MWNTs) was dependent on the degree of catalyst removal. At atmospheric pressure, removal of the catalyst decreased the uptake from 0.6% to below detection limits. Hydrogen uptake of the metal oxide catalyst ranged from 0.25 to 0.98%, depending on surface area. Normalization by metal content and temperature-programmed desorption studies suggest hydrogen dissociation and subsequent spillover to the MWNT. Metal-support interactions were key to the spillover; dry mixing of the MWNT and catalyst did not enhance storage, whereas in situ production increased storage by 40%. The moderate temperature range of this material suggests a novel material for hydrogen storage applications.
A. D. Lueking and R. T. Yang, "Hydrogen Spillover from a Metal Oxide Catalyst onto Carbon Nanotubes -- Implications for Hydrogen Storage," Journal of Catalysis, vol. 206, no. 1, pp. 165-168, Elsevier, Feb 2002.
The definitive version is available at https://doi.org/10.1006/jcat.2001.3472
Chemical and Biochemical Engineering
NGK Insulators, LTD
Keywords and Phrases
Carbon nanotubes; Mult-wall; Hydrogen storage; Metal oxides
International Standard Serial Number (ISSN)
Article - Journal
© 2002 Elsevier, All rights reserved.