THE DETERMINATION OF PORE SIZE DISTRIBUTION AND SURFACE AREA FROM ADSORPTION ISOTHERMS
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Theoretical isotherms have been developed which when compared to experimental isotherms showing hysteresis, allow the calculation of pore size, pore size distribution, and surface area of the sorbent. Interpretation of some experimental isotherms obtained with porous vycor glass shows that this system can best be represented by the "ink bottle" pore model with a Gaussian distribution of pore sizes. The mean pore radius of the porous glass is about two thirds of the Kelvin radius, and the surface area greater than that obtained from the B.E.T. theory. The Kelvin radius is interpreted as a weighted average, but the B.E.T. surface area appears more fundamentally different.
2001 ◽
Vol 172
(1-2)
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pp. 117-125
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2003 ◽
Vol 107
(17)
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pp. 4128-4136
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1993 ◽
Vol 28
(5)
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pp. 1177-1190
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1979 ◽
Vol 44
(8)
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pp. 2465-2473
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2019 ◽
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