porosity

2. porosity

Porosity of powders and porous solids can be measured by different techniques based on adsorption of inert gases. Physical gas adsorption or physisorption is important in the determination of porosity in general and more specific the specific surface area (BET surface area, according to the Brunauer, Emmet and Teller theory), pore volume and pore size distribution of porous materials and non- porous materials. Screening of the porous properties of a catalyst or other porous material can be achieved by dynamic adsorption where very rapidly information is obtained on the BET surface area and total pore volume.

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gas adsorption

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	Particle porosity gas adsorption pore size distribution BET surface area pore size analysis mercury porosimetry density analysis chemisorption metal surface area metal dispersion catalyst characterization laser diffraction particle size analysis
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www.solids-solutions.com	Last updated: 16-1-2008