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pores can have uniform size and shape
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pores can have nonuniform size and shape
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pores can have nonuniform size and shape
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[ Last edited by aust_jhe on 2010-10-19 at 23:19 ]
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The method was proposed by Barrer, Joiyner and Halenda.
It is designed as ASTM(American Society for Testing Materials) standard method
It is widely used also by commercial instruments to perform calculation on mesopores
The Kelvin equation can be used to evaluate the pore width from the pore filling pressure.
Using the equation, by examining step by step the isotherm in the range 0.42

BJH-pore-size distributions in the small mesopore to large micropore region should be interpreted with caution because the Kelvin equation (basis of BJH) is reliable only for pores >2 nm.
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