Patent US3839181A successfully refreshed from Google Patents.
US3839181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal electrodes and coatings thereof
Assignee: Solvay SA
•
Filing: 1971-07-29
•
Granted: 1974-10-01
•
Expires: 1991-07-29
Abstract
Abstract An electrode coating having the formula A2BO6, where A represents trivalent elements having anionic radius comprised between 0.50 and 0.73 Angstrom and where B represents hexavalent elements having an ionic radius comprised between 0.50 and 0.70.
Inventors
- 👤 L Degueldre
- 👤 Y Gobillon
- 👤 L Clerbois
- 👤 L Bourgeois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:50
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/9016; C; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/073; C25B11/075; C25B11/091; C25B11/093; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
59 words
A METALLIC ELECTRODE HAVING A CONDUCTIVE COATING, SAID COATING COMPRISING A COMPOUND OF THE GENERAL FORMULA A2BO6, WHEREIN A REPRESENTS AT LEAST ONE ELEMENT AT THE VALENCE 3, SELECTED FROM THE GROUP CONSISTING OF IR AND RH, AND B REPRESENTS AT LEAST ONE ELEMENT AT THE VALENCE 6, SELECTED FROM THE GROUP CONSISTING OF TE, W, MO AND RE.
Claim 2
Dependent Claim
59 words
A METALLIC ELECTRODE HAVING A CONDUCTIVE COATING, SAID COATING COMPRISING A COMPOUND OF THE GENERAL FORMULA A2BO6, WHEREIN A REPRESENTS AT LEAST ONE ELEMENT AT THE VALENCE 3, SELECTED FROM THE GROUP CONSISTING OF IR AND RH, AND B REPRESENTS AT LEAST ONE ELEMENT AT THE VALENCE 6, SELECTED FROM THE GROUP CONSISTING OF TE, W, MO AND RE.
Claim 3
Dependent Claim
21 words
A metallic electrode having a conductive coating as claimed in claim 1, wherein the said compound A2BO6 is rhodium tungstate, Rh2WO6.
Claim 4
Dependent Claim
21 words
A metallic electrode having a conductive coating as claimed in claim 1, wherein the said compound A2BO6 is rhodium tellurate, Rh2TeO6.
Claim 5
Dependent Claim
47 words
A metallic electrode having a conductive coating as claimed in claim 1, said conductive coating further comprising an oxide of MO2 type, where M represents at least one element at the valence 4 selected from the group consisting of Ir, Mn, Os, Rh, Ru, Sn, and Ti.
Claim 6
Dependent Claim
67 words
A metallic electrode having a conductive coating as claimed in claim 1, said conductive coating, further comprising an oxide of M''M''''04 type, where M'' represents at least one element at the valence 3 selected from the group consisting of Al, Cr, Fe, Ga, and Rh, and M'''' represents at least one element at the valence 5 selected from the group consisting of Nb, Sb, Ta, and V.
Claim 7
Dependent Claim
19 words
A metallic electrode having a conductive coating as claimed in claim 1 wherein B is at least partially Te.
Claim 8
Dependent Claim
172 words
A metallic electrode having a conductive coating, said coating comprising a compound of the general formula A2BO6, wherein A represents at least one element at the valence 3 selected from the group consisting of Co, Cr, Fe, Mn, Al, Ga and V, and B represents at least one element at the valence 6 selected from the group consisting of Te, W, Mo and Re, the said conductive coating further comprising at least one other compound containing at least one element selected from the group consisting of Ir, Os, Rh and Ru, said other compound being selected from the group consisting of MO2 and M''M''''O4 where: M represents at least one element at the valence 4 selected from the group consisting of Ir, Mn, Os, Rh, Ru, Sn and Ti M'' represents at least one element at the valence 3 selected from the group consisting of Al, Cr, Fe, Ga, and Rh M'''' represents at least one element at the valence 5 selected from the group consisting of Nb, Sb, Ta and V.
Claim 9
Dependent Claim
172 words
A metallic electrode having a conductive coating, said coating comprising a compound of the general formula A2BO6, wherein A represents at least one element at the valence 3 selected from the group consisting of Co, Cr, Fe, Mn, Al, Ga and V, and B represents at least one element at the valence 6 selected from the group consisting of Te, W, Mo and Re, the said conductive coating further comprising at least one other compound containing at least one element selected from the group consisting of Ir, Os, Rh and Ru, said other compound being selected from the group consisting of MO2 and M''M''''O4 where: M represents at least one element at the valence 4 selected from the group consisting of Ir, Mn, Os, Rh, Ru, Sn and Ti M'' represents at least one element at the valence 3 selected from the group consisting of Al, Cr, Fe, Ga, and Rh M'''' represents at least one element at the valence 5 selected from the group consisting of Nb, Sb, Ta and V.
Claim 10
Dependent Claim
94 words
An electrode suitable for use in electrochemical processes, comprising a support at least superficially containing titanium and having anodic polarization properties comparable with those of titanium, and on at least a part of the surface of said support a conductive coating comprising a compound of general formula A2BO6, wherein A represents one or more elements at valence 3 selected from the group consisting of Co, Cr, Fe, Mn, Al, Ga and V, and B represents at least one element at the valence 6 selected from the group consisting of Te, W, Mo and Re.
Claim 11
Dependent Claim
94 words
An electrode suitable for use in electrochemical processes, comprising a support at least superficially containing titanium and having anodic polarization properties comparable with those of titanium, and on at least a part of the surface of said support a conductive coating comprising a compound of general formula A2BO6, wherein A represents one or more elements at valence 3 selected from the group consisting of Co, Cr, Fe, Mn, Al, Ga and V, and B represents at least one element at the valence 6 selected from the group consisting of Te, W, Mo and Re.
References Cited (Backward Citations)
US3103484A
Cited
US3070422A
Cited
US3449064A
Cited
US3329594A
Cited
US3607416A
Cited
US3616446A
Cited
US3691052A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-30 | 1978-04-01 | 1978-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-30 | 1982-04-01 | 1982-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-30 | 1986-04-01 | 1986-10-01 | $7700.00 | Window Closed / Lapsed |