▎ 摘　　要

A molecular dynamics simulation is carried out to study the physisorption of H-2, CO, CO2, N-2, O-2 and CH4 in the pillared graphene structure under various environment. The excess adsorption number is calculated and found to be negative for H-2 at 300 K. Further the energy condition not distance between adsorbate and adsorbent is used to define the physisorption number. We found the excess adsorption number is smaller than physisorption number at normal environment, except for the gas at the supercritical fluid.