ON THE MEANING OF SURFACE-AREA MEASUREMENTS FOR MICROPOROUS MATERIALS

被引:5
作者
CAPE, JA
KIBBY, CL
机构
[1] Chevron Research Company, Richmond
关键词
D O I
10.1016/0021-9797(90)90233-E
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
It is shown that the conventional BET surface area of a microporous solid is the sum of an external area (mesopores and macrostructure) and a term proportional to the micropore volume. The proportionality factor in the latter term is calculated from a simple model and found to depend upon the pressures used in the BET fit. A consistent methodology is presented for obtaining external areas and micropore volumes from the BET equation and t-plots. © 1990.
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页码:515 / 520
页数:6
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