Shape engineering of nanoparticles
First Claim
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1. A method for modifying the shape of nanomaterials comprising:
- processing nanomaterials of a first aspect ratio by shear at a temperature greater than the softening temperature of the nanomaterials, wherein the temperature is between 0.2*Tm and 0.95*Tm, wherein Tm is the melting point temperature of the nanomaterials in Kelvin; and
collecting nanomaterials with an aspect ratio different than the first aspect ratio.
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Abstract
Methods for preparing high aspect ratio nanomaterials from spherical nanomaterials useful for oxides, nitrides, carbides, borides, metals, alloys, chalcogenides, and other compositions.
26 Citations
16 Claims
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1. A method for modifying the shape of nanomaterials comprising:
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processing nanomaterials of a first aspect ratio by shear at a temperature greater than the softening temperature of the nanomaterials, wherein the temperature is between 0.2*Tm and 0.95*Tm, wherein Tm is the melting point temperature of the nanomaterials in Kelvin; and collecting nanomaterials with an aspect ratio different than the first aspect ratio. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for modifying the shape of nanomaterials comprising:
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processing nanomaterials of a first aspect ratio by shear at a temperature greater than the softening temperature of the nanomaterials but less than a melting temperature of the nanomaterials; and collecting nanomaterials with an aspect ratio different than the first aspect ratio. - View Dependent Claims (8, 9, 10)
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11. A method for modifying the shape of nanomaterials comprising:
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processing inorganic nanoparticles of a first aspect ratio and having a mean particle size less than 250 nanometers by shear at a temperature greater than the softening temperature of the nanoparticles but less than a melting temperature of the nanoparticles; wherein the processing changes the aspect ratio of the nanoparticles. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification