Title: Mesoporous metal oxides and processes for preparation thereof

Abstract

A process for preparing a mesoporous metal oxide, i.e., transition metal oxide. Lanthanide metal oxide, a post-transition metal oxide and metalloid oxide. The process comprises providing an acidic mixture comprising a metal precursor, an interface modifier, a hydrotropic ion precursor, and a surfactant; and heating the acidic mixture at a temperature and for a period of time sufficient to form the mesoporous metal oxide. A mesoporous metal oxide prepared by the above process. A method of controlling nano-sized wall crystallinity and mesoporosity in mesoporous metal oxides. The method comprises providing an acidic mixture comprising a metal precursor, an interface modifier, a hydrotropic ion precursor, and a surfactant; and heating the acidic mixture at a temperature and for a period of time sufficient to control nano-sized wall crystallinity and mesoporosity in the mesoporous metal oxides. Mesoporous metal oxides and a method of tuning structural properties of mesoporous metal oxides.

Inventors:

Suib, Steven L.; Poyraz, Altug Suleyman

Issue Date:

Tue Mar 06 00:00:00 EST 2018

Research Org.:

University of Connecticut, Farmington, CT (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1425929

Patent Number(s):

9908103

Application Number:

14/037,100

Assignee:

University of Connecticut (Farmington, CT)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

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

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B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J21/063 - {Titanium
B01J21/08 - Silica
B01J21/12 - Silica and alumina
B01J23/06 - of zinc, cadmium or mercury
B01J23/10 - of rare earths
B01J23/34 - Manganese
B01J23/72 - Copper
B01J23/745 - Iron
B01J23/75 - Cobalt
B01J23/755 - Nickel

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

B82Y30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS

C01B13/18 - by thermal decomposition of compounds, e.g. of salts or hydroxides
C01B13/326 - {of elements or compounds in the liquid state}
C01B33/124 - {Preparation of adsorbing porous silica not in gel form and not finely divided, i.e. silicon skeletons, by acidic treatment of siliceous materials}
C01B35/1027 - {Oxides}
C01B37/02 - Crystalline silica-polymorphs, e.g. silicalites {dealuminated aluminosilicate zeolites}

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS

C01F17/224 - Oxides or hydroxides of lanthanides
C01F17/235 - Cerium oxides or hydroxides

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C01G1/02 - Oxides

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2002/72 - by d-values or two theta-values, e.g. as X-ray diagram
C01P2004/03 - obtained by SEM
C01P2004/04 - obtained by TEM, STEM, STM or AFM
C01P2004/64 - Nanometer sized, i.e. from 1-100 nanometer
C01P2006/12 - Surface area
C01P2006/13 - thermal stability thereof at high temperatures
C01P2006/14 - Pore volume
C01P2006/16 - Pore diameter
C01P2006/17 - Pore diameter distribution

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DOE Contract Number:  

FG02-86ER13622

Resource Type:

Patent

Resource Relation:

Patent File Date: 2013 Sep 25

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY