High-pressure adsorption capacity and structure of CO2 in carbon slit pores: theory and simulation.
We present new simulation results for the packing of single-center and three-center models of carbon dioxide at high pressure in carbon slit pores. The former shows a series of packing transitions that are well described by our density functional theory model developed earlier. In contrast, these transitions are absent for the three-center model. Analysis of the simulation results shows that alternations of flat-lying molecules and rotated molecules can occur as the pore width is increased. The presence or absence of quadrupoles has negligible effect on these high-density structures.
Bhatia
S K
SK
Department of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia. sureshb@cheque.uq.edu.au
Tran
K
K
Nguyen
T X
TX
Nicholson
D
D