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Title: US6103868: Organically-functionalized monodisperse nanocrystals of metals
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Country: US United States of America

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11 pages

 
Inventor: Heath, James R.; Santa Monica, CA
Leff, Daniel V.; Palo Alto, CA

Assignee: The Regents of the University of California, Oakland, CA
other patents from UNIVERSITY OF CALIFORNIA, THE REGENTS OF (599425) (approx. 4,840)
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Published / Filed: 2000-08-15 / 1998-06-18

Application Number: US1998000091389

IPC Code: Advanced: C30B 7/00;
Core: more...
IPC-7: B32B 1/00; C08F 6/12; C08J 3/14;

U.S. Class: Current: 528/482; 075/331; 075/332; 427/212; 428/402; 528/491;
Original: 528/482; 528/458; 528/491; 428/402; 427/212; 075/331; 075/332;

Field of Search: 428/402 427/212 528/482,488,491 075/331,332

Priority Number:
1998-06-18  US1998000091389
1996-12-27  WO1996US0020402

Abstract:     Organically functionalized metal nanoparticles are produced by mixing a metal precursor with an organic surface passivant and reacting the resulting mixture with a reducing agent to generate free metal while binding the passivant to the surface of the free metal to produce organically functionalized metal particles.

Attorney, Agent or Firm: Oppenheimer Wolff & Donnelly LLP ;

Primary / Asst. Examiners: Truong, Duc;

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Designated Country: AU CA EP JP US  DE FR GB IE IT LU NL SE 

Family: Show 7 known family members

First Claim:
Show all 14 claims
What is claimed is:     1. A method for preparing organically functionalized nanocrystals of metals and metal alloys comprising the steps of:
  • (a) providing a solution or dispersion of one or more metal salts;
  • (b) providing a solution of a non-metallic organic surface passivant;
  • (c) mixing said one or more metal salts with said non-metallic organic surface passivant;
  • (d) reacting the resulting mixture with a reducing agent to reduce said one or more metal salts to free metal while concomitantly binding said non-metallic organic surface passivant to the resulting free metal surface;
thereby providing organically functionalized metal and metal alloy nanocrystals having a particle diameter of 1-20 nanometers.


Background / Summary: Show background / summary

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PCT Number: PCT/US96/20402    WO9724224

PCT Pub./Filed Dates: 1997-07-10 / 1996-12-27

§ 371 / 102(e) Dates: 1998-06-18 / 1998-06-18

Forward References: Show 49 U.S. patent(s) that reference this one

       
U.S. References: Go to Result Set: All U.S. references   |  Forward references (49)   |   Backward references (3)   |   Citation Link

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Patent  Pub.Date  Inventor Assignee   Title
Buy PDF- 3pp US4152303  1979-05 Cohen et al.  Borg-Warner Corporation Zero-valent metal catalysts and a process for preparing them
Buy PDF- 34pp US5585457  1996-12 Newkome et al.  University of South Florida Metallospheres and superclusters
Buy PDF- 19pp US5620584  1997-04 Reetz et al.  Studiengesellschaft Kohle mbH Electrochemical reduction of metal salts as a method of preparing highly dispersed metal colloids and substrate fixed metal clusters by electrochemical reduction of metal salts
       
Foreign References: None

Other Abstract Info: DERABS C1997-363520

Other References:
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