bjh pore size distribution

2024-05-20


The pore size distribution data are compared with those obtained by the original BJH and Pierce methods. The pore system conforms very well with the idealised open-ended cylindrical pore model.

BJH (1951) is a popular method for estimating the pore volume and pore diameter of a porous material. BJH produces an average pore volume and a pore diameter. For instance, BJH...

The results show that BJH method can be used to analyze cylindrical mesoporous materials with pore size between 5 nm and 50 nm. HK method is more suitable for the analysis of microporous activated carbon materials with slit holes, and SF method is intended for analyzing cylindrical microporous materials according to the adsorption isotherms ...

The pore size distribution for mesopores was calculated from the desorption branch of the isotherm using the Barrett-Joyner-Halenda (BJH) model. The pore size distribution for macrospores was analyzed using a Micrometrics Autopore IV 9500 mercury porosimeter. The skeleton density of the material was obtained using the helium specific ...

What is the pore size distribution by BJH method? Question. 9 answers. Asked 30th May, 2015; Jorge Efrén Silva Yumi;

Abstract. Gas physisorption is an experimental technique based on equilibrium Van der Waals interactions between gas molecules and solid particles, that quantifies the specific surface area (SSA), pore size distribution (PSD), and pore volume of solids and powders.

Fractal Analysis in Pore Size Distributions of Different Bituminous Coals. Article Open access 03 December 2019. Experimental investigation on pore characteristics of vitrain and durain in...

Abstract. Nitrogen adsorption/desorption isotherms are used to investigate the Brunauer, Emmett, and Teller (BET) surface area and Barrett-Joyner-Halenda (BJH) pore size distribution of physically modified, thermally annealed, and octadecanethiol functionalized np-Au monoliths.

The actual surface area correlates very well with the BET surface area. The BJH method is a procedure for calculating pore volumes and pore size distributions from experimental isotherms, using the Kelvin equation. It applies only to the mesopore and small macropore size range.

Calculates the pore size distribution using a 'classical' model which attempts to describe the adsorption in a pore as a combination of a statistical thickness and a condensation/evaporation behaviour related to adsorbate surface tension. It is based on solving the following equation: Δ V n = V k, n + V t, n.

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