US4584085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation and use of electrodes
Assignee: Dow Chemical Co
•
Filing: 1984-12-17
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Granted: 1986-04-22
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Expires: 2004-12-17
Abstract
Abstract A substrate is coated with a solution of metal oxide precursor compounds and an etchant for etching the substrate, the metal oxide precursor compounds are thermally concentrated by removing volatiles therefrom, and the so-concentrated metal oxides precursors are thermally oxidized in-situ on the substrate. The so-formed compositions are useful, e.g., as electrode material in electrochemical apparatuses and processes.
Inventors
- 👤 R. Neal Beaver
- 👤 Lloyd E. Alexander
- 👤 Carl E. Byrd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:46
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25B11/091; C25B11/093; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12611; Y10T428/12618
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
34 words
An electrode material comprising a layer of nickel metal having tightly adhered thereto a heterogeneous metal oxide coating, said heterogeneous metal oxide coating consisting essentially of nickel oxide and a platinum group metal oxide.
Claim 2
Dependent Claim
34 words
An electrode material comprising a layer of nickel metal having tightly adhered thereto a heterogeneous metal oxide coating, said heterogeneous metal oxide coating consisting essentially of nickel oxide and a platinum group metal oxide.
Claim 3
Dependent Claim
15 words
The electrode material of claim 1 wherein the platinum group metal oxide is ruthenium oxide.
Claim 4
Dependent Claim
33 words
The electrode material of claim 1 wherein the heterogeneous metal oxide coating also contains a minor amount of a modifier metal oxide in addition to the nickel oxide and platinum group metal oxide.
Claim 5
Dependent Claim
16 words
The material of claim 1 wherein the layer of nickel metal is affixed to a substrate.
Claim 6
Dependent Claim
17 words
The material of claim 1 wherein the layer of nickel metal is affixed to an electroconductive substrate.
Claim 7
Dependent Claim
17 words
The material of claim 1 wherein the layer of nickel metal is affixed to a non-electroconductive substrate.
Claim 8
Dependent Claim
30 words
The material of claim 1 wherein the metal oxide coating consists essentially of nickel oxide and ruthenium oxide along with minor amounts of ZrO 2 as a modifier metal oxide.
Claim 9
Dependent Claim
15 words
The material of claim 1 wherein the layer of nickel metal is an expanded mesh.
Claim 10
Dependent Claim
63 words
A composite for use as a cathode material comprising a substrate having an electrocatalytically active coating deposited thereon, said coating consisting essentially of a heterogeneous mixture of metal oxides containing nickel oxide and at least one oxide of a metal selected from the group consisting of Ru, Rh, Pd, Os, Ir, and Pt, and optionally, a minor amount of a modifier metal oxide.
Claim 11
Dependent Claim
63 words
A composite for use as a cathode material comprising a substrate having an electrocatalytically active coating deposited thereon, said coating consisting essentially of a heterogeneous mixture of metal oxides containing nickel oxide and at least one oxide of a metal selected from the group consisting of Ru, Rh, Pd, Os, Ir, and Pt, and optionally, a minor amount of a modifier metal oxide.
Claim 12
Dependent Claim
10 words
The composite of claim 9 wherein the substrate is electroconductive.
Claim 13
Dependent Claim
10 words
The composite of claim 9 wherein the substrate is non-electroconductive.
Claim 14
Dependent Claim
21 words
The composite of claim 9 wherein the substrate has a layer of Ni between it and the heterogeneous metal oxide structure.
Claim 15
Dependent Claim
27 words
The composite of claim 9 wherein the substrate is non-electroconductive and wherein there is a layer of Ni between the substrate and the heterogeneous metal oxide structure.
Claim 16
Dependent Claim
25 words
The composite of claim 9 wherein the substrate is electrically-conductive and there is a layer of Ni between it and the heterogeneous metal oxide structure.
Claim 17
Dependent Claim
18 words
The composite of claim 9 wherein the heterogeneous metal oxide structure consists essentially of RuO 2 and NiO.
Claim 18
Dependent Claim
29 words
The composite of claim 9 wherein the heterogeneous mixture of metal oxides consists essentially of RuO 2 and NiO along with a minor amount of a modifier metal oxide.
Claim 19
Dependent Claim
32 words
The composite of claim 9 wherein the heterogeneous mixture of metal oxides consists essentially of RuO 2 and NiO along with a minor amount of ZrO 2 as a modifier metal oxide.
Claim 20
Dependent Claim
48 words
The composite of claim 9 wherein the substrate has a layer of Ni between it and the heterogeneous mixture of metal oxides, where said heterogeneous mixture of metal oxides consists essentially of RuO 2 and NiO, along with minor amounts of ZrO 2 as a modifier metal oxide.
Claim 21
Dependent Claim
11 words
The composite of claim 9 wherein the substrate is Ni metal.
Claim 22
Dependent Claim
37 words
The composite of claim 9 wherein the substrate in Ni metal and the mixture of metal oxides consists essentially of NiO and a platinum group metal oxide and, optionally, a minor amount of a modifier metal oxide.
Claim 23
Dependent Claim
34 words
The composite of claim 9 wherein the substrate is Ni metal and the mixture of metal oxides consists essentially of NiO and RuO 2 and, optionally, a minor amount of a modifier metal oxide.
Claim 24
Dependent Claim
36 words
The composite of claim 9 wherein the substrate is Ni metal and the mixture of metal oxides consists essentially of NiO and RuO 2 and a minor amount of ZrO 2 as a modifier metal oxide.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-21 | 1989-10-21 | 1990-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-21 | 1993-10-21 | 1994-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-21 | 1997-10-21 | 1998-04-22 | $7700.00 | Window Closed / Lapsed |