Chemisorption of hydrogen by carbon nanotubes |
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| Authors: | S V Bulyarskii and A S Basaev |
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| Institution: | (1) Boston University, Boston, MA, USA;(2) The Pennsylvania State University Electrical Engineering, University Park, PA 16802, USA; |
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| Abstract: | Chemisorption of hydrogen by carbon nanotubes (CNTs) is studied by thermodynamics and kinetics methods. Expressions are derived
for the adsorption isotherm and desorption kinetics. Methods for determining chemisorption parameters are developed. The partial
free energy of binding of hydrogen with a CNT (3.6 eV) is determined. It is shown that residual products of synthesis are
removed from CNTs as a result of prolonged annealing at high temperatures. The capacity of a CNT relative to chemisorbed hydrogen
is esti mated at 4 mass %. |
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