METHOD OF SYNTHESIS OF A FULLERIDE OF METAL NANO-CLUSTER AND MATERIAL COMPRISING A FULLERIDE OF METAL NANO-CLUSTER

• US 20110114880A1
• Filed: 11/16/2010
• Published: 05/19/2011
• Est. Priority Date: 11/17/2009
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Blank, Vladimir Davidovich, Pivovarov, Gennadii Ivanovich, Popov, Mikhail Yurievich
• Granted Patent: US 8,734,752 B2
• Time in Patent Office: Days
• US Class Current: 252/182.35
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: B82Y 40/00 Manufacture or treatment of nanostructures
• CPC Class Codes: C01B 32/15 Nano-sized carbon materials
• CPC Class Codes: C01B 32/152 Fullerenes
• CPC Class Codes: C01B 32/156 After-treatment
• CPC Class Codes: Y10T 428/2982 Particulate matter [e.g., sphere, flake, etc.]

Abstract

A method of synthesis of a fulleride of metal nano-cluster is provided. The method is characterised in mechanically alloying metal nano-clusters with fullerene-type clusters. Fullerene molecules in the fulleride of metal nano-cluster are preserved. The alloying is done by milling in a planetary mill. A material including a fulleride of a metal nano-cluster is also provided.

Claims

1-15. -15. (canceled)

16. A method of synthesis of a fulleride of metal nano-cluster, comprising:

mechanically alloying metal nano-clusters with fullerene-type clusters,

wherein fullerene molecules in the fulleride of metal nano-cluster are preserved.

17. The method as claimed in claim 16, wherein the mechanically alloying is done by milling in a planetary mill.

18. The method as claimed in claim 16, wherein a nano-powder of metal nano-clusters having a size between 5 nm and 60 nm is used.

19. The method as claimed in claim 16, wherein aluminum-lithium alloy nano-clusters are used.

20. The method as claimed in claim 17, wherein steel milling balls having a weight between 250 g and 270 g and/or using steel milling balls having a diameter between 6 mm and 8 mm in the planetary mill are used.

21. The method as claimed in claim 17, wherein the mechanically alloying is done in an atmosphere comprising argon and hydrogen.

22. The method as claimed in claim 16, wherein metal nano-clusters and fullerene-type clusters in granules of a size between 0.5 mm and 0.6 mm are used.

23. The method as claimed in claim 16, wherein metal nano-clusters and fullerene-type clusters comprising between 95 wt. % and 99 wt. % metal nano-clusters and between 5 wt. % and 1 wt. % fullerene are used.

24. The method as claimed in claim 17, wherein milling balls and accelerating the milling balls between 800 m/s² and 1200 m/s² are used.

25. The method as claimed in claim 17, wherein the metal nano-clusters are milled between 80 min and 120 min and the metal nano-clusters are milled with fullerene between 10 min and 30 min,

26. The method as claimed in claim 17, wherein the metal nano-clusters are milled with fullerene for between 80 min and 140 min.

27. The method as claimed in claim 16, wherein the fulleride of metal nano-cluster is sintered.

28. A material, comprising:

a fulleride of metal nano-cluster.

29. The material as claimed in claim 28, wherein a chemical bond of the metal nano-cluster with the fullerene is covalent, ionic or partially covalent and partially ionic.

30. The material as claimed in claim 28, wherein the material comprises metal nano-clusters of a size between 5 m and 60 nm.

31. The material as claimed in claim 28,

wherein the material is expressed as Me_n(C_x)_m, and wherein C_x is a fullerene and Me is a metal and n≧

10 for m=1.