Methods of selectively incorporating metals onto substrates
First Claim
1. A method of incorporating metals on a substrate, comprising the steps of:
- a) reacting a pretarget metal complex with an active group on a substrate to form a target metal species, said target metal species capable of reacting with a secondary metal complex in an oxidation-reduction reaction; and
b) reacting the secondary metal complex with the target metal species in an oxidation-reduction reaction to form a multi-metallic compound on the substrate;
wherein at least one of the pretarget metal complex and secondary metal complex have the formula
M-Lnwhere M is a transition, actinide, lanthanide, or main group metal, L is a complexing ligand, and n is from one to five.
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Abstract
A method for forming multi-metallic sites on a substrate is disclosed and described. A substrate including active groups such as hydroxyl can be reacted with a pretarget metal complex. The target metal attached to the active group can then be reacted with a secondary metal complex such that an oxidation-reduction (redox) reaction occurs to form a multi-metallic species. The substrate can be a highly porous material such as aerogels, xerogels, zeolites, and similar materials. Additional metal complexes can be reacted to increase catalyst loading or control co-catalyst content. The resulting compounds can be oxidized to form oxides or reduced to form metals in the ground state which are suitable for practical use.
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Citations
29 Claims
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1. A method of incorporating metals on a substrate, comprising the steps of:
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a) reacting a pretarget metal complex with an active group on a substrate to form a target metal species, said target metal species capable of reacting with a secondary metal complex in an oxidation-reduction reaction; and b) reacting the secondary metal complex with the target metal species in an oxidation-reduction reaction to form a multi-metallic compound on the substrate; wherein at least one of the pretarget metal complex and secondary metal complex have the formula
M-Lnwhere M is a transition, actinide, lanthanide, or main group metal, L is a complexing ligand, and n is from one to five. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of incorporating metals on a substrate, comprising the steps of:
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a) reacting a pretarget metal complex with an active group on a substrate to form a target metal species, said target metal species capable of reacting with a secondary metal complex in an oxidation-reduction reaction; and b) reacting the secondary metal complex with the target metal species in an oxidation-reduction reaction to form a multi-metallic compound on the substrate; wherein the pretarget metal complex and secondary metal complex are independently selected from the group consisting of metallocenes, open metallocenes, and combinations or derivatives thereof. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of incorporating metals on a substrate, comprising the steps of:
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a) reacting a pretarget metal complex with an active group on a substrate to form a target metal species, said target metal species capable of reacting with a secondary metal complex in an oxidation-reduction reaction; and b) reacting the secondary metal complex with the target metal species in an oxidation-reduction reaction to form a multi-metallic compound on the substrate; wherein at least one of the pretarget metal complex and secondary metal complex are independently selected from the group consisting of Fe(C5H5)(2,4-C7H11), ferrocene, cobaltocene, ruthenocene, cerium alkoxides, - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification