Production of metal nanoparticles from precursors having low...

Details Production of metal nanoparticles from precursors having low... Production of metal nanoparticles from precursors having low...

Filed on

2006-05-31

Date issued

2009-12-01

Examiner

Le, H. (Holly) T (Department: 1794)

Patent Class

Stock material or miscellaneous articles

SubClass

All metal or with adjacent metals

SubSubClass

Composite powder

Other Related Categories

C428S403000, C977S777000

Type

Reexamination Certificate

Status

active

Patent number

07625637

Description

ABSTRACT:
Metallic nanoparticles and processes for forming metallic nanoparticles. In one aspect, the invention is to a process for forming nanoparticles comprising the step of heating a solution comprising a first metal precursor and a nucleating agent (e.g., nucleate nanoparticles or a nucleate precursor) in the presence of a base under conditions effective to form the nanoparticles. The first metal precursor preferably comprises a cationic metal species having a low reduction potential. The invention is also to a nanoparticle or plurality of nanoparticles, each nanoparticle comprising a core having a largest dimension less than about 10 nm; and a metal layer substantially surrounding the core and having a largest dimension less than about 200 nm.

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