Adsorption isotherm of nitrogen in MCM-41 at temperature T=77 K was measured by using the ASAP 2010 volumetric adsorption analyzer produced by Micromeritics Instrument Corp. .

• 用美国Micromeritics公司生产的ASAP2 0 10物理吸附仪测定了低温 (77K)N2 在MCM 41分子筛中的吸附等温线 ；获得了表征MCM 41特征的BET比表面、BJH孔容和平均孔径 .