Porosity

Total pore volumen and pore size distribution in porous materials are determined by physisorption and mercury porosimetry.

• Physisorption analyses are carried out in ASAP2020 (Micromeritics). This equipment allows to obtain adsorption isotherms for mesoporous and microporous materials.  The microporosity can be studied by using N₂ or CO₂ as adsorbate..
• Mercury porosimetry is performed in AUTOPORE V (Micromeritics). This analysis allows to determinate total pore volumen and pore size distribution for mesoporous and macroporous materials.

Analyses for porosity determination are performed according to ISO 15901(1-2-3): Pore size distribution and porosity of solid materials by mercury porosimetry and gas adsorption.