Process for group 10 metal nanostructure synthesis and compositions made using same
View Patent ↗Methods for producing Group 10 metal nanostructures are provided. The methods involve novel precursors, novel surfactants, or novel precursor-surfactant combinations. Compositions related to the methods are also featured.
1. A nanostructure produced by a method for production of Group 10 metal nanostructures, the method comprising:
providing a precursor, the precursor comprising a Group 10 atom selected from the group consisting of Pd, Pt, and Ni, wherein
a) the Group 10 atom has an oxidation state of +2, the Group 10 atom being bonded to one or more atoms each of which is other than an oxygen atom or a halogen atom, or
b) the Group 10 atom has an oxidation state of 0; and
reacting the precursor to produce the nanostructures, wherein reaction of the precursor to produce the nanostructures is substantially catalytic RNA independent.
2. A nanostructure produced by a method for production of Group 10 metal nanostructures, the method comprising:
providing a precursor comprising a Group 10 atom selected from the group consisting of Pd, Pt, and Ni, which Group 10 atom has an oxidation state greater than zero;
providing a reducing agent; and
reacting the precursor and the reducing agent in the presence of a phosphine or an arsine to produce the nanostructures.
3. A composition comprising:
a precursor comprising a Group 10 atom selected from the group consisting of Pd, Pt, and Ni, wherein
a) the Group 10 atom has an oxidation state of +2, the Group 10 atom being bonded to one or more atoms each of which is other than an oxygen atom or a halogen atom, or
b) the Group 10 atom has an oxidation state of 0; and
a population of Group 10 metal nanostructures;
wherein the composition is substantially free of any RNA whose presence increases a rate of reaction of the precursor to form the nanostructures by at least two fold.
4. A composition comprising:
a precursor comprising a Group 10 atom selected from the group consisting of Pd, Pt, and Ni, wherein
a) the Group 10 atom has an oxidation state of +2, the Group 10 atom being bonded to one or more atoms each of which is other than an oxygen atom or a halogen atom, or
b) the Group 10 atom has an oxidation state of 0; and
at least a first surfactant, wherein the first surfactant is a thiol or a phosphine other than a tri-n-alkylphosphine.
5. A composition comprising:
a precursor comprising a Group 10 atom selected from the group consisting of Pd, Pt, and Ni, which Group 10 atom has an oxidation state greater than zero;
a reducing agent;
a phosphine or an arsine; and
a population of Group 10 metal nano structures.
6. A composition comprising:
a population of Group 10 metal nanostructures selected from the group consisting of Pd, Pt, and Ni; and
at least a first surfactant, wherein the first surfactant is an aryl thiol, an alkylaryl thiol, or a tri-alkylarylphosphine.
7. The composition of claim 6 , wherein the nanostructures comprise one or more of: nanocrystals, substantially spherical nanocrystals, nanorods, branched nanostructures, or nanotetrapods.
8. A composition comprising a population of Group 10 metal nanostructures selected from the group consisting of Pd, Pt, and Ni, which population exhibits a standard deviation in diameter of the nanostructures which is less than 20% of an average diameter of the nanostructures.
9. The composition of claim 8 , wherein the standard deviation is less than 15% of the average diameter.
10. The composition of claim 8 , wherein the standard deviation is less than 10% of the average diameter.
11. The composition of claim 8 , wherein the nanostructures are substantially spherical.
12. The composition of claim 8 , wherein the average diameter is less than 5.0 nm.
13. The composition of claim 12 , wherein the average diameter is less than 4.0 nm.