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US 10,329,234 B2Granted
Heterogeneous metal-free catalyst
AssigneeUniversity of Central Florida Research Foundation, Inc.
InventorRichard G. Blair
Life of this patent
Estimating the term…
Abstract
The inventive concepts disclosed and/or claimed herein relate generally to catalysts and, more particularly, but not by way of limitation, to a heterogeneous, metal-free hydrogenation catalyst containing frustrated Lewis pairs. In one non-limiting embodiment, the heterogeneous, metal-free catalyst comprises hexagonal boron nitride (h-BN) having frustrated Lewis pairs therein.
Claims24
A heterogeneous hydrogenation catalyst, comprising:
- a solid surface substantially free of metals, the solid surface having at least one Lewis acid site and at least one Lewis base site;
- and
- at least one defect frustrating at least one pair of Lewis acid and Lewis base sites, wherein the at least one frustrated pair of Lewis acid and Lewis base sites is catalytically active;
- wherein the Lewis acids are selected from the group consisting of Group 13 elements in a trigonal planar configuration, halides of Group 15 elements, electron poor π-systems, and combinations thereof, and wherein the Lewis bases are selected from the group consisting of simple anions, lone-pair containing species, complex anions, electron rich π-systems, and combinations thereof.
1 more element
A heterogeneous hydrogenation catalyst, comprising:
- a solid surface having non-metallic Lewis acid moieties and non-metallic Lewis base moieties spaced a distance apart from one another such that (a) catalytic activity is present therebetween and (b) the formation of an acid-base adduct is prevented;
- wherein the Lewis acid moieties are selected from the group consisting of Group 13 elements in a trigonal planar configuration, halides of Group 15 elements, electron poor π-systems, and combinations thereof, and wherein the Lewis base moieties are selected from the group consisting of simple anions, lone-pair-containing species, complex anions, electron rich π-systems, and combinations thereof.
A heterogeneous hydrogenation catalyst, comprising:
- a sheet of catalytically active material substantially free of metals having unsatisfied Lewis acid-base pairs along a surface of the sheet;
- wherein the Lewis acids are selected from the group consisting of Group 13 elements in a trigonal planar configuration, halides of Group 15 elements, electron poor π-systems, and combinations thereof, and wherein the Lewis bases are selected from the group consisting of simple anions, lone-pair containing species, complex anions, electron rich π-systems, and combinations thereof.
A hydrogenation process comprising:
- contacting a hydrogenatable compound with hydrogen gas and a catalyst in a reactor, wherein the catalyst comprises a solid material having at least one frustrated Lewis acid-base pair;
- and
- catalytically hydrogenating the hydrogenatable compound;
- wherein the Lewis acids are selected from the group consisting of Group 13 elements in a trigonal planar configuration, halides of Group 15 elements, electron poor π-systems, and combinations thereof, and wherein the Lewis bases are selected from the group consisting of simple anions, lone-pair containing species, complex anions, electron rich π-systems, and combinations thereof.
1 more element
Dependencies are inferred from the claim text.