US5246791A
Expired / Lapsed
US
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Fuel cell containing a reforming catalyst
Assignee: Johnson Matthey PLC
•
Filing: 1992-06-22
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Granted: 1993-09-21
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Expires: 2012-06-22
Abstract
Abstract A high temperature fuel cell containing a reforming catalyst with improved resistance to deactivation by the electrolyte of a high temperature fuel cell comprising ruthenium on a support.
Inventors
- 👤 Janet M. Fisher
- 👤 Philip S. Bennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:38
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/06; H01M8/0606; H01M8/0612; H01M8/0625; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
53 words
A high temperature fuel cell comprising a molten carbonate electrolyte, containing a reforming catalyst in contact with a hydrocarbon-containing fuel and subject to contact with the molten carbonate electrolyte, said reforming catalyst comprising ruthenium carried on a support and acting to reform said hydrocarbon-containing fuel to a hydrogen-containing fuel for the fuel cell.
Claim 2
Dependent Claim
53 words
A high temperature fuel cell comprising a molten carbonate electrolyte, containing a reforming catalyst in contact with a hydrocarbon-containing fuel and subject to contact with the molten carbonate electrolyte, said reforming catalyst comprising ruthenium carried on a support and acting to reform said hydrocarbon-containing fuel to a hydrogen-containing fuel for the fuel cell.
Claim 3
Dependent Claim
22 words
The high temperature fuel cell of claim 1, wherein the support comprises one or more rare earth oxides, zirconia, ceria or magnesia.
Claim 4
Dependent Claim
13 words
The high temperature fuel cell of claim 1, wherein the support comprises magnesia.
Claim 5
Dependent Claim
15 words
The high temperature fuel cell of claim 1, wherein the reforming catalyst further comprises nickel.
References Cited (Backward Citations)
US3400119A
Cited
FR1417111A
Cited
FR1408215A
Cited
GB1154522A
Cited
GB1154521A
Cited
US3438815A
Cited
US3619296A
Cited
US3956191A
Cited
US4125565A
Cited
US4202934A
Cited
US4186110A
Cited
US4214970A
Cited
US4522894A
Cited
US4701434A
Cited
JPS6134865A
Cited
EP0173904A1
Cited
JPS61260554A
Cited
US4794054A
Cited
US4702973A
Cited
EP0266861A1
Cited
US4802958A
Cited
JPS63310574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-20 | 1997-03-22 | 1997-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-20 | 2001-03-22 | 2001-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-20 | 2005-03-22 | 2005-09-21 | $7700.00 | Window Closed / Lapsed |