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Title: Nitride stabilized core/shell nanoparticles

Patent ·
OSTI ID:1418791
; ;

Nitride stabilized metal nanoparticles and methods for their manufacture are disclosed. In one embodiment the metal nanoparticles have a continuous and nonporous noble metal shell with a nitride-stabilized non-noble metal core. The nitride-stabilized core provides a stabilizing effect under high oxidizing conditions suppressing the noble metal dissolution during potential cycling. The nitride stabilized nanoparticles may be fabricated by a process in which a core is coated with a shell layer that encapsulates the entire core. Introduction of nitrogen into the core by annealing produces metal nitride(s) that are less susceptible to dissolution during potential cycling under high oxidizing conditions.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-98CH10886
Assignee:
Brookhaven Science Associates, LLC (Upton, NY)
Patent Number(s):
9,882,222
Application Number:
14/554,583
OSTI ID:
1418791
Resource Relation:
Patent File Date: 2014 Nov 26
Country of Publication:
United States
Language:
English

References (11)

Underpotential Deposition-Mediated Layer-By-Layer Growth Of Thin Films patent-application June 2011
Fuel Cell Electrode And Membrane Electrode Assembly patent-application October 2013
Platinum- and platinum alloy-coated palladium and palladium alloy particles and uses thereof patent April 2010
Nanoparticles: Correlation Between Surface Chemistry and Electrocatalytic Properties of Monodisperse PtxNi1-x Nanoparticles (Adv. Funct. Mater. 1/2011) journal December 2010
Synthesis of metal-metal oxide catalysts and electrocatalysts using a metal cation adsorption/reduction and adatom replacement by more noble ones patent April 2010
Core / shell-type catalyst particles comprising metal or ceramic core materials and methods for their preparation patent July 2012
Catalyst, Production Process Therefor And Use Thereof patent-application January 2011
Nitride Stabilized PtNi Core–Shell Nanocatalyst for high Oxygen Reduction Activity journal February 2012
High activity early transition metal carbide and nitride based catalysts patent-application February 2013
Carbon monoxide tolerant electrocatalyst with low platinum loading and a process for its preparation patent December 2003
Hydrogen absorption induced metal deposition on palladium and palladium-alloy particles patent March 2009

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