De-alloyed platinum nanoparticles

Details De-alloyed platinum nanoparticles De-alloyed platinum nanoparticles

Filed on

2011-08-09

Date issued

2011-08-09

Examiner

Nguyen, Cam N. (Department: 1736)

Patent Class

Catalyst, solid sorbent, or support therefor: product or process

SubClass

Catalyst or precursor therefor

SubSubClass

Metal, metal oxide or metal hydroxide

Other Related Categories

C502S004000, C502S010000, C502S104000, C502S107000, C502S111000, C502S150000, C502S305000, C502S319000, C502S321000, C502S324000, C502S325000, C502S326000, C502S332000, C502S333000, C502S334000, C502S335000, C502S337000, C502S339000, C502S344000, C502S347000, C502S350000, C502S353000, C502S355000

Type

Reexamination Certificate

Status

active

Patent number

07994089

Description

ABSTRACT:
A method of producing de-alloyed nanoparticles. In an embodiment, the method comprises admixing metal precursors, freeze-drying, annealing, and de-alloying the nanoparticles in situ. Further, in an embodiment de-alloyed nanoparticle formed by the method, wherein the nanoparticle further comprises a core-shell arrangement. The nanoparticle is suitable for electrocatalytic processes and devices.

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patent: 7422994 (2008-09-01), Chondroudis et al.
patent: 7537803 (2009-05-01), Wang et al.
patent: 7662740 (2010-02-01), Chondroudis et al.
patent: 7811965 (2010-10-01), Cendak et al.
patent: 2005/0170222 (2005-08-01), Strasser et al.
patent: 2007/0010396 (2007-01-01), Giaquinta et al.
patent: 2008/0095852 (2008-04-01), Kong et al.

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