Issue 22, 2016

Ethane adsorption on aggregates of dahlia-like nanohorns: experiments and computer simulations

Abstract

This is a report on a study of the adsorption characteristics of ethane on aggregates of unopened dahlia-like carbon nanohorns. This sorbent presents two main groups of adsorption sites: the outside surface of individual nanohorns and deep, interstitial spaces between neighbouring nanohorns towards the interior of the aggregates. We have explored the equilibrium properties of the adsorbed ethane films by determining the adsorption isotherms and isosteric heat of adsorption. Computer simulations performed on different model structures indicate that the majority of ethane adsorption occurs on the outer region of the aggregates, near the ends of the nanohorns. We have also measured the kinetics of adsorption of ethane on this sorbent. The measurements and simulations were conducted along several isotherms spanning the range between 120 K and 220 K.

Graphical abstract: Ethane adsorption on aggregates of dahlia-like nanohorns: experiments and computer simulations

Article information

Article type
Paper
Submitted
19 Mar 2016
Accepted
17 May 2016
First published
18 May 2016

Phys. Chem. Chem. Phys., 2016,18, 15436-15446

Ethane adsorption on aggregates of dahlia-like nanohorns: experiments and computer simulations

B. A. Russell, A. D. Migone, J. Petucci, M. Mercedes Calbi, M. Yudasaka and S. Iijima, Phys. Chem. Chem. Phys., 2016, 18, 15436 DOI: 10.1039/C6CP01861K

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