Title: Synthesis of macroporous structures

Abstract

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.

Inventors:

Stein, Andreas; Holland, Brian T.; Blanford, Christopher F.; Yan, Hongwei

Issue Date:

2004-01-20

Research Org.:

Univ. of Minnesota, Minneapolis, MN (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1174692

Patent Number(s):

6680013

Application Number:

09/549,078

Assignee:

Regents of the University of Minnesota (Minneapolis, MN)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

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B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS

B29C67/202 - {comprising elimination of a solid or a liquid ingredient}

B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES

B82Y20/00 - Nanooptics, e.g. quantum optics or photonic crystals

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B35/00 - Shaped ceramic products characterised by their composition {
C04B38/0022 - {obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors}
C04B38/0032 - {one of the precursor materials being a monolithic element having approximately the same dimensions as the final article, e.g. a paper sheet which after carbonisation will react with silicon to form a porous silicon carbide porous body}
C04B38/067 - {Macromolecular compounds

G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

G02B6/1225 - {comprising photonic band-gap structures or photonic lattices}
G02B6/13 - Integrated optical circuits characterised by the manufacturing method

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DOE Contract Number:  

FG02-93-ER14384

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE