Methods for the preparation of metallic alloy nanoparticles and compositions thereof
A method of producing metal alloy nanoparticles comprising forming a cyanosol by reacting a mixture of a chlorometallate complex and a cyanometallate complex, spin-coating the mixture onto a substrate to form a film, and sintering the film to form metal alloy nanoparticles.
1. A method for producing metal alloy nanoparticles, comprising:
(a) reacting a chlorometallate complex comprising Sn with a transition metal cyanometallate complex to form a cyanosol;
(b) spin-coating the cyanosol to form a thin film; and
(c) sintering the film to form metal alloy nanoparticles.
2. The method of claim 1 , wherein the chlorometallate complex and the cyanometallate complex are in aqueous solution.
3. The method of claim 1 , wherein the concentration of the chlorometallate complex and the cyanometallate complex in aqueous solutions are equimolar.
4. The method of claim 1 , wherein the sintering temperature is 250° to 1000° C.
5. The method of claim 1 , wherein the chlorometallate complex and the cyanometallate complex are mixed in a 3:1 ratio.
6. The method of claim 1 , wherein the nanoparticles are 3-100 nm in size.
7. A method for producing a thin film of metal alloy nanoparticles, comprising:
(a) reacting a chlorometallate complex comprising Sn with a transition metal cyanometallate complex to form a cyanosol;
(b) spin-coating the cyanosol onto a substrate to form a thin film of metal alloy nanoparticles.
8. The method of claim 7 , wherein the chlorometallate complex and the cyanometallate complex are in aqueous solution.
9. The method of claim 7 , wherein the concentration of the chlorometallate complex and the cyanometallate complex in aqueous solutions are equimolar.
10. The method of claim 7 , wherein the chlorometallate complex and the cyanometallate complex are mixed in a 3:1 ratio.
11. The method of claim 7 , wherein the nanoparticles are 3-100 nm in size.