Pore structure of SWNTs with high hydrogen storage capacity

This paper reveals, by analyses of nitrogen cryo-adsorption isotherm, the energetic and structural heterogeneity of single-walled carbon nanotubes (SWNTs) which has a high hydrogen storage capacity. It was found that SWNTs had manifold pore structures and distributed surface energy. By comparison of...

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Bibliographic Details
Published in:Science China. Technological sciences 2002-12, Vol.45 (6), p.561-568
Main Authors: Yang, Quanhong, Liu, Chang, Liu, Min, Fan, Yanzhen, Cheng, Huiming, Wang, Maozhang
Format: Article
Language:English
Subjects:
adsorption
carbon
energy
hydrogen
nanotubes
porestructure
single-walled
surface
SWNTs
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Summary:This paper reveals, by analyses of nitrogen cryo-adsorption isotherm, the energetic and structural heterogeneity of single-walled carbon nanotubes (SWNTs) which has a high hydrogen storage capacity. It was found that SWNTs had manifold pore structures and distributed surface energy. By comparison of the pore structures and energy distributions of SWNTs before and after hydrogen adsorption, it is preliminarily indicated that hydrogen adsorption occurred in micropores and mesopores with smaller diameter, and that the pores of different diameters determined different hydrogen adsorption processes and underwent different structure changes during hydrogen adsorption.
ISSN:1674-7321
1869-1900
DOI:10.1360/02ye9064