| 초록 |
Recently, many researchers have focused on the development of porous materials for hydrogen (H2) storage media. In case of hydrogen (H2) physisorption, subnanometer micropores of less than 1 nm are known for their excellent performances, but their exact contribution and temperature-dependent adsorption performance are still ambiguous. Until now, many adsorption models including Langmuir, Freundlich, and Toth have been proposedbefore, however, they could not contain the porosity of the materials, so there is still a difficulty in revealing the correlation between porosity and adsorption performance. We have proposed a new model based on DFT pore volumes to investigate the ambiguous correlation between H2 adsorption and micropores. Our approach is a completely different approach from the conventional adsorption models and enables the analysis of the physisorption behavior of the gases by applying the porosity of the materials. |
