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Title: Electrocatalyst for oxygen reduction with reduced platinum oxidation and dissolution rates

Abstract

The invention relates to platinum-metal oxide composite particles and their use as electrocatalysts in oxygen-reducing cathodes and fuel cells. The invention particularly relates to methods for preventing the oxidation of the platinum electrocatalyst in the cathodes of fuel cells by use of these platinum-metal oxide composite particles. The invention additionally relates to methods for producing electrical energy by supplying such a fuel cell with an oxidant, such as oxygen, and a fuel source, such as hydrogen.

Inventors:
; ;
Issue Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1080419
Patent Number(s):
8308989
Application Number:
13/033,764
Assignee:
Brookhaven Science Associates, LLC (Upton, NY)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
DOE Contract Number:  
AC02-98CH10886
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Adzic, Radoslav, Zhang, Junliang, and Vukmirovic, Miomir. Electrocatalyst for oxygen reduction with reduced platinum oxidation and dissolution rates. United States: N. p., 2012. Web.
Adzic, Radoslav, Zhang, Junliang, & Vukmirovic, Miomir. Electrocatalyst for oxygen reduction with reduced platinum oxidation and dissolution rates. United States.
Adzic, Radoslav, Zhang, Junliang, and Vukmirovic, Miomir. Tue . "Electrocatalyst for oxygen reduction with reduced platinum oxidation and dissolution rates". United States. https://www.osti.gov/servlets/purl/1080419.
@article{osti_1080419,
title = {Electrocatalyst for oxygen reduction with reduced platinum oxidation and dissolution rates},
author = {Adzic, Radoslav and Zhang, Junliang and Vukmirovic, Miomir},
abstractNote = {The invention relates to platinum-metal oxide composite particles and their use as electrocatalysts in oxygen-reducing cathodes and fuel cells. The invention particularly relates to methods for preventing the oxidation of the platinum electrocatalyst in the cathodes of fuel cells by use of these platinum-metal oxide composite particles. The invention additionally relates to methods for producing electrical energy by supplying such a fuel cell with an oxidant, such as oxygen, and a fuel source, such as hydrogen.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {11}
}

Patent:

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Works referenced in this record:

Electrocatalytic Activity of Cubic Sodium Tungsten Bronze
journal, January 1981


Tungsten bronze fuel cell catalysts
journal, January 1968


Self-Assembling Solid Oxide Fuel Cell Materials:  Mesoporous Yttria-Zirconia and Metal-Yttria-Zirconia Solid Solutions
journal, September 2000


Surface Composition Effects in Electrocatalysis:  Kinetics of Oxygen Reduction on Well-Defined Pt 3 Ni and Pt 3 Co Alloy Surfaces
journal, November 2002