29-08-2013 дата публикации
Номер: US20130220211A1
Принадлежит:
Compositions made by metallothermal reduction from crystalline materials and methods of producing such compositions are provided. The compositions have novel crystalline structures in the form of three-dimensional scaffolds. Additionally, the compositions possess unusual properties that indicate possible applications in numerous applications. 1. A method of forming an essentially oxygen free crystalline composition comprising:a. subjecting an oxygen-containing crystalline precursor to a metallothermic process; andb. removing reaction by-products to give an essentially oxygen-free crystalline composition.2. The method of claim 1 , wherein the oxygen-containing crystalline precursor of the essentially oxygen-free crystalline composition comprises two or more elements other than oxygen.3. The method of claim 1 , wherein the oxygen-containing crystalline precursor comprises a zeolite claim 1 , mica claim 1 , quartz claim 1 , sapphire claim 1 , oxyorthosilicate claim 1 , perovskite claim 1 , a nonlinear crystalline material claim 1 , metal oxide organic framework claim 1 , metal organic framework claim 1 , ALD crystal claim 1 , sol gel crystal claim 1 , quartz fiber claim 1 , crystal fiber claim 1 , ion exchanged crystal claim 1 , polyhedral oligomeric silsesquioxane (POSS) claim 1 , POSS polymer film claim 1 , zeolitic imidazolate framework (ZIFs) claim 1 , zeolite-containing film claim 1 , or covalent organic framework (COFs).4. The method of claim 3 , wherein the oxygen-containing crystalline precursor comprises a zeolite claim 3 , mica claim 3 , quartz claim 3 , sapphire claim 3 , oxyorthosilicate claim 3 , or perovskite.5. The method of claim 1 , wherein the essentially oxygen-free crystalline composition comprises a periodic arrangement of holes.6. The method of claim 1 , wherein the essentially oxygen-free crystalline composition comprises a porosity of greater than 200 m/gram.7. The method of claim 1 , wherein the subjecting the oxygen-containing crystalline ...
Подробнее