Method for Making Cobalt Nanomaterials
AssigneeBoard of Supervisors of Lousiana State University and Agricultural and Mechanical College
InventorsChalla S.S.R. Kumar, Rohini M. de Silva, Josef Hormes
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Abstract
A method for generating metallic nanomaterials using acetylenic-bridged metal-carbonyl complexes as a precursor allows control of nanoparticle properties. The novel method produced metallic nanomaterials resistant to oxidation.
Claims8
A method for forming metallic nanomaterials, comprising combining a precursor comprising dimetal-acetylenic-carbonyl complexes with the general formula:
- (a) wherein R1 and R2 may be —H, —CH3, —C2H5, —C3H7, —C6H5, or —C6H4—CH,
- (b) wherein R1 and R2 may be the same or different;
- and
- (c) wherein M is Co,
- with a surfactant in a non-polar solvent under an inert atmosphere;
- heating the combination to a temperature sufficient to cause decomposition of said precursor;
- and cooling the combination so that a precipitate forms comprising metallic nanomaterials.
A method for forming bi-metallic nanomaterials comprising combining a precursor comprising dimetal-acetylenic-carbonyl complexes with the general formula:
- (a) wherein R1 and R2 may be —H, —CH3, —C2H5, —C3H7, —C6H5, or —C6H4-CH3,
- (b) wherein R1 and R2 may be the same or different;
- and
- (c) wherein M is Co,
- with a surfactant in a non-polar solvent under an inert atmosphere;
- adding to the combination at least one additional precursor comprising an iron-carbonyl complex;
- heating the resulting mixture to a temperature sufficient to cause decomposition of said precursors;
- and
- cooling the mixture so that a precipitate forms comprising bi-metallic nanomaterial.
Dependencies are inferred from the claim text.