Acta Chimica Sinica ›› 1981, Vol. 39 ›› Issue (6): 563-567. Previous Articles     Next Articles

固体比表面积与孔径分布的测定——孔径分布测定中实验条件变化的计算机模拟

沈中和, 王歧钟, 周佩佩   

  1. 中国科学院上海有机化学研究所
  • 收稿日期:1979-11-06 出版日期:1981-11-15 发布日期:2013-06-03

THE DETERMINATION OF SURFACE AREA AND PORE SIZE DISTRIBUTION IN SOLIDS——COMPUTER SIMULATION FOR THE CHANGES OF EXPERIMENTAL PARAMETERS IN THE DETERMINATION OF PORE SIZE DISTRIBUTION

SHEN ZHONG-HE, WANG QI-ZHONG, ZHOU PEI-PEI   

  1. Shanghai Institute of Organic Chemistry, Academia Sinica
  • Received:1979-11-06 Online:1981-11-15 Published:2013-06-03

Using oompnter simulation,we examined the influences of various experimental parameters on pore size distributions as determined by elution chromatography.The influences are different for two types of adsorption isotherms.The changes in saturated vapor pressure of nitrogen and total gas velocity have more profound effects on the pore size distribution.If the pore size only is to be obtained from experiments,then it was found that the shapes and leap regions of the adsorption isotherms are crucial,hence it is possible to reduce the number of observations on the other parts of the isotherm without reducing the accuracy of the determinations.