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AssigneeThe Regents of the University of California
InventorsAlexander E. Gash, Joe Satcher
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Nanostructured chromium(III)-oxide-based materials using sol-gel processing and a synthetic route for producing such materials are disclosed herein. Monolithic aerogels and xerogels having surface areas between 150 m2/g and 520 m2/g have been produced. The synthetic method employs the use of stable and inexpensive hydrated-chromium(III) inorganic salts and common solvents such as water, ethanol, methanol, 1-propanol, t-butanol, 2-ethoxy ethanol, and ethylene glycol, DMSO, and dimethyl formamide. The synthesis involves the dissolution of the metal salt in a solvent followed by an addition of a proton scavenger, such as an epoxide, which induces gel formation in a timely manner. Both critical point (supercritical extraction) and atmospheric (low temperature evaporation) drying may be employed to produce monolithic aerogels and xerogels, respectively.
A sol-gel processing method for producing nanostructured chromium(III)-oxide-based materials comprising:
A sol-gel processing method for producing nanostructured chromium(III)-oxide-based materials comprising:
A nanostructured monolith chromium(III)-oxide-based monolithic aerogel having a surface area greater than about 420 m2/g.
A nanostructured chromium(III)-oxide-based gel produced by the process comprising:
Dependencies are inferred from the claim text.