SEQUENTIAL/SIMULTANEOUS MULTI-METALIZED NANOCOMPOSITES (S2M2N)
First Claim
1. A method of making a multi-rnetalized nanocomposite, comprising:
- providing a porous matrix;
dissolving a first metal or metalloid precursor in a supercritical carbon dioxide (CO2) fluid;
infusing the supercritical CO2 fluid with the dissolved first metal or metalloid precursor into the porous matrix;
lowering the pressure to trap the infused first metal or metalloid precursor in the porous matrix;
reducing the first metal or metalloid precursor at an elevated temperature to form a plurality of first metal or metalloid nanoparticles in the porous matrix;
dissolving at least a second metal or metalloid precursor in a supercritical carbon dioxide (CO2) fluid after reducing the first metal or metalloid precursor;
infusing the supercritical CO2 fluid with the dissolved second metal or metalloid precursor into the porous matrix;
lowering the pressure to trap the infused second metal or metalloid precursor in the porous matrix; and
reducing the second metal or metalloid precursor at an elevated temperature to form a plurality of second metal or metalloid nanoparticles in the porous matrix.
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Accused Products
Abstract
Sequential and simultaneous methods of making a multi-metalized nanocomposite. A method includes providing a porous matrix, dissolving at least a first metal or metalloid precursor and a second metal or metalloid precursor in a supercritical carbon dioxide (CO2) fluid, wherein the first and second metal or metalloid precursors are different, infusing the supercritical CO2 fluid with the dissolved first and second metal or metalloid precursors into the porous matrix, lowering the pressure to trap the infused first and second metal or metalloid precursors in the porous matrix and reducing the first and second metal or metalloid precursors at an elevated temperature to form first and second metal or metalloid nanoparticles in the porous matrix.
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Citations
15 Claims
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1. A method of making a multi-rnetalized nanocomposite, comprising:
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providing a porous matrix; dissolving a first metal or metalloid precursor in a supercritical carbon dioxide (CO2) fluid; infusing the supercritical CO2 fluid with the dissolved first metal or metalloid precursor into the porous matrix; lowering the pressure to trap the infused first metal or metalloid precursor in the porous matrix; reducing the first metal or metalloid precursor at an elevated temperature to form a plurality of first metal or metalloid nanoparticles in the porous matrix; dissolving at least a second metal or metalloid precursor in a supercritical carbon dioxide (CO2) fluid after reducing the first metal or metalloid precursor; infusing the supercritical CO2 fluid with the dissolved second metal or metalloid precursor into the porous matrix; lowering the pressure to trap the infused second metal or metalloid precursor in the porous matrix; and reducing the second metal or metalloid precursor at an elevated temperature to form a plurality of second metal or metalloid nanoparticles in the porous matrix. - View Dependent Claims (2, 3, 4, 5, 6, 10)
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7. A method of making a multi-metalized nanocomposite, comprising:
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providing a porous matrix; dissolving at least a first metal or metalloid precursor and a second metal or metalloid precursor in a supercritical carbon dioxide (CO2) fluid, wherein the first and second metal or metalloid precursors are different; infusing the supercritical CO2 fluid with the dissolved first and second metal or metalloid precursors into the porous matrix; lowering the pressure to trap the infused first and second metal or metalloid precursors in the porous matrix; and reducing the first and second metal or metalloid precursors at an elevated temperature to form first and second metal or metalloid nanoparticles in the porous matrix. - View Dependent Claims (8, 9, 11, 12)
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- 13. A multi-metalized nanocomposite comprising a porous matrix and at least two different types of metal or metalloid nanoparticles in the porous matrix.
Specification