Table of Contents
ISRN Renewable Energy
Volume 2012 (2012), Article ID 491396, 4 pages
http://dx.doi.org/10.5402/2012/491396
Research Article

High-Pressure Hydrogen Adsorption in the Zeolites: A Grand Canonical Monte Carlo Study

College of Science, Henan University of Technology, Henan, Zhengzhou 450001, China

Received 22 April 2012; Accepted 15 June 2012

Academic Editors: F. E. Little and R. P. Saini

Copyright © 2012 Xiuying Liu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The adsorption of hydrogen molecules on different zeolites at near room temperature and extremely high pressures has been simulated employing Grand Canonical Monte Carlo (GCMC) method. Some important physical amounts under different temperatures and pressures, such as adsorption isotherms, adsorption amounts, and isosteric heats were studied. We predict the storage capacity of hydrogen in ZON and CHA zeolites at different conditions. The results show that the hydrogen storage capacity of CHA is superior to that of ZON. The different hydrogen adsorption behavior between them is explained by the isosteric heats of adsorption at different temperatures. These results may help us to understand different hydrogen adsorption properties of these two zeolites, thus facilitate exploring new hydrogen storage candidates experimentally.