Derivation of the Expanded Form of the BJH Equation and its Application to the Pore Structure Analysis of Mesoporous Adsorbents
作者： S. Khaja Masthan , K.S. Rama Rao , P.S. Sai Prasad , P. Kanta Rao
DOI: 10.1177/026361749200900401
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摘要: The BJH equation, vn=Rn(ΔV)n−RnΔtn∑i=1n−1ciAi, used for pore structure analyses via its application to the N2 desorption isotherms at 78 K of porous materials, has been modified by substituting value ci and expanding last term. quantity vn is volume pores involved in nth step given terms N2, (ΔV)n, exuded from material, constants Rn which depend on average size thickness physically adsorbed multilayer, Δtn being decrease multilayer as a result Ai surface area set ith step. A derivation equation presented. It applied data bone char Barrett, Joyner Halenda (BJH). effect (t) values Pierce de Boer distribution studied. da...
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