Mercury PSD measurements20 (link) were carried out using a Micromeritics Autopore IV 9520 unit. The sample was pre-treated at 200 °C for 15 min, then at 540 °C for 1 h. About 0.5 g of the sample was loaded into a 3 ml powder penetrometer. The mercury intrusion pressure was increased in a stepwise manner from 0.1 to 60,000 psi. The volume of mercury intruded after each step is measured and recorded. Acknowledging the unreliability of MIP regarding the analysis of pores with irregular shapes49 (link), the pore diameter was calculated using the Washburn equation with a contact angle of 140°50 (link).
Autopore 4 9520 unit
Manufactured by Micromeritics
The Autopore IV 9520 is a mercury intrusion porosimeter designed for the measurement of pore size distribution and total pore volume in solid materials. It employs the principle of mercury intrusion to quantify the porous structure of samples, providing detailed information about pore size, pore volume, and pore surface area.
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Lab products found in correlation
2 protocols using autopore 4 9520 unit
1
Mercury Intrusion Porosimetry for Pore Analysis
2
Multimodal X-ray Imaging of Catalyst Bodies
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For microtomography experiments, the catalyst bodies were added to a quartz capillary, and no further preparation was carried out. For the ptychographic X-ray nanotomography experiments, the sample was milled by using FIB to extract a cylinder of 8 μm diameter out of one spherical catalyst body with diameter of about 100 μm. This cylinder was mounted on the sample holder of the instrument.[21 (link), 22 (link)] Both X-ray imaging experiments were carried out at the Swiss Light Source, Paul Scherrer Institut, Switzerland. X-ray microtomography was performed at the TOMCAT beamline and ptychographic X-ray tomography was carried out at the cSAXS beamline. The mercury PSD measurement was carried out on a Micromeritics Autopore IV 9520 unit. Further experimental details and data processing are given in the Supporting Information.
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