Templates are key to development of porous matrices with tailored pore size distribution and orientation. This presentation focuses on high surface area catalyst synthesis. A template that is soluble in supercritical carbon dioxide with or withoud an entrainer can be removed from the porous catalyst once the pore structure is formed. Therefore, solubilities non-ionic surfactants, Triton X-114 and Tergitol 15-S-9, are presented here. The solubility of each compound is determined using a variable volume, visual cell cloud point phase behavior set-up.

Supercritical carbon dioxide plus entrainer (alcohols) is used as the solvent. The results are modeled using PRSV and extended to other experimental condition.

The experimental mixtures range from 93.2 mol% to 97.6 mol% carbon dioxide with Triton X-114 compositions ranging from 1.93 e-4 mol% to 4.56 e-4 mol%. Observed cloud point pressures range from 95.6 bar to 173.1 bar at temperatures ranging from 35oC to 60oC.