US Patent No: 7,704,918

Number of patents in Portfolio can not be more than 2000

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

ALSO PUBLISHED AS: 20070264189

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
BROOKHAVEN SCIENCE ASSOCIATESUPTON, NY201

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Adzic, Radoslav East Setauket, NY 35 152
Sasaki, Kotaro Upton, NY 14 35
Vukmirovic, Miomir Port Jefferson Station, NY 12 58

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ENGELHARD CORPORATION (2)
6,019,946 Catalytic structure 19 1997
6,559,094 Method for preparation of catalytic material for selective oxidation and catalyst members thereof 31 1999
 
UNIVERSITY OF CONNECTICUT (2)
6,162,530 Nanostructured oxides and hydroxides and methods of synthesis therefor 60 1997
6,517,802 Methods of synthesis for nanostructured oxides and hydroxides 33 2000
 
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (1)
* 2009/0117,020 RAPID MICROWAVE-SOLVOTHERMAL SYNTHESIS AND SURFACE MODIFICATION OF NANOSTRUCTURED PHOSPHO-OLIVINE CATHODES FOR LITHIUM ION BATTERIES 6 2008
 
BROOKHAVEN SCIENCE ASSOCIATES (1)
6,183,894 Electrocatalyst for alcohol oxidation in fuel cells 21 1999
 
DREXEL UNIVERSITY (1)
* 6,346,182 Process of making bipolar electrodeposited catalysts and catalysts so made 7 2000
 
FUJIFILM CORPORATION (1)
2003/0224,162 Transparent conductive film, method for producing same and method for forming pattern 6 2003
 
GENERAL MOTORS CORPORATION (1)
6,541,142 Fuel cell system having a methanol decomposition reactor 13 2000
 
GM GLOBAL TECHNOLOGY OPERATIONS LLC (1)
6,680,279 Nanostructured catalyst particle/catalyst carrier particle system 26 2002
 
JOHNSON MATTHEY FUEL CELLS LIMITED (1)
* 5,939,220 Catalyst 41 1997
 
MICROCOATING TECHNOLOGIES, INC. (1)
2004/0009,388 Electrocatalyst-containing layer 4 2003
 
PLUG POWER INC. (1)
6,489,052 Fuel cell air purification subsystem 22 1999
 
PROTON ENERGY SYSTEMS, INC. (1)
6,828,056 Electrode catalyst composition, electrode, and membrane electrode assembly for electrochemical cells 7 2001
 
TANAKA KIKINZOKU KOGYO K.K. (1)
5,225,391 Electrocatalyst for anode 60 1992
 
The Dow Chemical Company (1)
5,227,030 Electrocatalytic cathodes and methods of preparation 5 1991
 
TOTO LTD. (1)
6,294,246 Multi-functional material with photocatalytic functions and method of manufacturing same 14 1998
 
UMICORE AG & CO. KG (1)
6,723,298 Method for catalytic conversion of carbon monoxide in a hydrogen-containing gas mixture 23 2000
 
Westinghouse Electric Corp. (1)
5,733,675 Electrochemical fuel cell generator having an internal and leak tight hydrocarbon fuel reformer 92 1995
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
BALLARD POWER SYSTEMS INC. (2)
* 8,389,175 Fuel cell having a stabilized cathode catalyst 1 2008
* 8,304,365 Stabilized platinum catalyst 1 2008
 
South Australian Co-Operative Bulk Handling Limited (2)
5,009,046 Reducing hoop stress in silos 1 1985
4,790,111 Reducing hoop stress in silos 3 1987
 
3M INNOVATIVE PROPERTIES COMPANY (1)
* 8,637,193 Fuel cell nanocatalyst with voltage reversal tolerance 0 2009
 
BROOKHAVEN SCIENCE ASSOCIATES (1)
* 8,062,552 Electrocatalyst for oxygen reduction with reduced platinum oxidation and dissolution rates 4 2005
 
CRISTAL USA INC. (1)
* 8,450,236 Supported precious metal catalysts via hydrothermal deposition 0 2010
 
FORD GLOBAL TECHNOLOGIES, LLC (1)
8,796,170 Layered catalyst 0 2011
 
Other [Check patent profile for assignment information] (1)
4,372,466 Vessel for storing particulate materials and method of emptying 2 1980
* Cited By Examiner

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