The Material Science Institute of Madrid, ICMM-CSIC, aims to generate cutting-edge knowledge on materials and processes crucial for addressing societal challenges
ICMM-CSIC, C/ Sor Juana Inés de la Cruz 3, 28049 Madrid, España
Physical gas adsorption techniques and mercury porosimetry allow the characterisation of porous solids texture. Gas adsorption/desorption curves at constant temperature (isotherm) allow the surface area and pore size distribution determination among others in micro-mesoporous solids . High-pressure mercury intrusion allow the determination of the porosity of the materials showing accessible pores in the range of 1 micrometer to 1 mm.
Measurements
Determining the specific surface area of powder by one-point method.
Nitrogen adsorption-desorption isotherm, at 77K, are recorded taking into account the nature of the solids. Standard degassing conditions are 120 ºC during 12 hours (indicate if other conditions are required). By analysis of the relative pressure zone up to 0.35 and application of the BET method to the results.
Pore size analysis, on porous solids, by mercury intrusion from 3 microns to 940 microns as standard and provides software for more advanced operations.
Equipment:
The textural analysis laboratory has the following equipments: • Micromeritics Flowsorb 2300. • Autosorb iQ from Quantachrome Instruments. • Poremaster Series Quantachrome Instruments.
Allowed samples
Samples provided has to be as fine powder with a minimum mass of 100 mg. For high porosity materials (MOF or COF) the minimum quantity is 50 mg.