RT Journal Article ID 2646e09a5f4125cc A1 Luo, Tengfei A1 Lloyd, John R. T1 GRAND CANONICAL MONTE CARLO SIMULATION OF HYDROGEN ADSORPTION IN DIFFERENT CARBON NANOSTRUCTURES JF International Journal of Energy for a Clean Environment JO IJECE YR 2009 FD 2011-07-06 VO 10 IS 1-4 SP 37 OP 56 K1 grand canonical Monte Carlo K1 hydrogen K1 carbon nanotube K1 graphite nanofibers K1 C60 intercalated graphite AB Grand canonical Monte Carlo (GCMC) simulations are performed to study hydrogen physisorption in different nanocarbon porous materials made up of different substructures including carbon nanotubes (CNTs), graphene sheets, and C60. Hydrogen weight percentage (wt%) at different temperatures with pressure ranging from 1 to 20 MPa are predicted. Fugacity and quantum effects on hydrogen adsorption are investigated. Different structural dimensions, including the sizes of the substructures and spacing between the substructures, are used to study the geometrical effects on hydrogen storage capacity in carbon materials. The calculated results of the present study agree well with other available computational data. It is found that CNT arrays, graphite nanofibers (GNFs), and C60 intercalated graphite (CIG) can reach a hydrogen storage weight percent as high as only 3% at room temperature and 20 MPa when equilibrium sub-structural spacing values are used. The quantum effect is significant in low-temperature hydrogen adsorption simulation, and the particular scheme to include the quantum effect predicts the magnitude of weight percent to vary as much as 3.5%. PB Begell House LK https://www.dl.begellhouse.com/journals/6d18a859536a7b02,4a318d3b4457f488,2646e09a5f4125cc.html