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Synthesis of macroporous structures

United States Patent

January 20, 2004
View the Complete Patent at the US Patent & Trademark Office
The present application discloses a method of forming an inorganic macroporous material. In some embodiments, the method includes: providing a sample of organic polymer particles having a particle size distribution of no greater than about 10%; forming a colloidal crystal template of the sample of organic polymer particles, the colloidal crystal template including a plurality of organic polymer particles and interstitial spaces therebetween; adding an inorganic precursor composition including a noncolloidal inorganic precursor to the colloidal crystal template such that the precursor composition permeates the interstitial spaces between the organic polymer particles; converting the noncolloidal inorganic precursor to a hardened inorganic framework; and removing the colloidal crystal template from the hardened inorganic framework to form a macroporous material. Inorganic macroporous materials are also disclosed.
Stein; Andreas (St. Paul, MN), Holland; Brian T. (Chicago, IL), Blanford; Christopher F. (Minneapolis, MN), Yan; Hongwei (St. Paul, MN)
Regents of the University of Minnesota (Minneapolis, MN)
09/ 549,078
April 15, 2000
STATEMENT OF GOVERNMENT RIGHTS The present invention was made with the support of the National Science Foundation under Grant Nos. DMR-9701507 and 9809364 and the Department of Energy under Grant No. DOE/DE-FG02-93-ER14384. The government may have certain rights in the invention.