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Platinum-ruthenium-palladium fuel cell electrocatalyst

Patent ·
OSTI ID:1175640
A catalyst suitable for use in a fuel cell, especially as an anode catalyst, that contains platinum at a concentration that is between about 20 and about 60 atomic percent, ruthenium at a concentration that is between about 20 and about 60 atomic percent, palladium at a concentration that is between about 5 and about 45 atomic percent, and having an atomic ratio of platinum to ruthenium that is between about 0.7 and about 1.2. Alternatively, the catalyst may contain platinum at a concentration that is between about 25 and about 50 atomic percent, ruthenium at a concentration that is between about 25 and about 55 atomic percent, palladium at a concentration that is between about 5 and about 45 atomic percent, and having a difference between the concentrations of ruthenium and platinum that is no greater than about 20 atomic percent.
Research Organization:
Symyx Technologies, Inc., Santa Clara, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG03-97ER82492
Assignee:
Symyx Technologies, Inc.
Patent Number(s):
6,995,114
Application Number:
10/763,842
OSTI ID:
1175640
Country of Publication:
United States
Language:
English

References (5)

Automated Electrochemical Analysis with Combinatorial Electrode Arrays journal October 1999
Discovery of methanol electro-oxidation catalysts by combinatorial analysis report December 1996
Carbon Monoxide Tolerant Anodes for Proton Exchange Membrane (PEM) Fuel Cells. II. Alloy Catalyst Development journal January 1998
Combinatorial Electrochemistry: A Highly Parallel, Optical Screening Method for Discovery of Better Electrocatalysts journal June 1998
Solution-Based Assembly of Metal Surfaces by Combinatorial Methods journal January 1996

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25 ENERGY STORAGE