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Title: Synthesis of metal-metal oxide catalysts and electrocatalysts using a metal cation adsorption/reduction and adatom replacement by more noble ones

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. The invention also relates to methods of making the metal-metal oxide composites.

Inventors:
; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1176256
Patent Number(s):
7,704,918
Application Number:
11/760,051
Assignee:
Brookhaven Science Associates, LLC (Upton, NY)
DOE Contract Number:  
AC02-98CH10886
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 30 DIRECT ENERGY CONVERSION

Citation Formats

Adzic, Radoslav, Vukmirovic, Miomir, and Sasaki, Kotaro. Synthesis of metal-metal oxide catalysts and electrocatalysts using a metal cation adsorption/reduction and adatom replacement by more noble ones. United States: N. p., 2010. Web.
Adzic, Radoslav, Vukmirovic, Miomir, & Sasaki, Kotaro. Synthesis of metal-metal oxide catalysts and electrocatalysts using a metal cation adsorption/reduction and adatom replacement by more noble ones. United States.
Adzic, Radoslav, Vukmirovic, Miomir, and Sasaki, Kotaro. Tue . "Synthesis of metal-metal oxide catalysts and electrocatalysts using a metal cation adsorption/reduction and adatom replacement by more noble ones". United States. https://www.osti.gov/servlets/purl/1176256.
@article{osti_1176256,
title = {Synthesis of metal-metal oxide catalysts and electrocatalysts using a metal cation adsorption/reduction and adatom replacement by more noble ones},
author = {Adzic, Radoslav and Vukmirovic, Miomir and Sasaki, Kotaro},
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. The invention also relates to methods of making the metal-metal oxide composites.},
doi = {},
url = {https://www.osti.gov/biblio/1176256}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {4}
}

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Works referenced in this record:

Electrocatalytic Activity of Cubic Sodium Tungsten Bronze
journal, January 1981


Metal monolayer deposition by replacement of metal adlayers on electrode surfaces
journal, March 2001


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