EP0125560A2
Expired / Lapsed
EP
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Stoichiometric metal oxide electrode
Assignee: International Business Machines Corp
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Filing: 1984-05-03
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Granted: —
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Expires: 2004-05-03
Abstract
Abstract A pH monitoring electrode comprises a substrate coated with an outer stoichiometric sputtered film of PdO, the substrate being glass coated with Pd.
Inventors
- 👤 Vasilios Andreas Karagounis
- 👤 Pamela Anne Leary-Renick
- 👤 Labomyr Taras Romankiw
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 02:56
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/333
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
37 words
An electrode for monitoring an ionic species, said electrode being coated with a film of a metallic oxide, the improvement comprising said electrode having an exterior surface comprising a substantially pure stoichiometric tilm of said metallic oxide.
Claim 2
Dependent Claim
37 words
An electrode for monitoring an ionic species, said electrode being coated with a film of a metallic oxide, the improvement comprising said electrode having an exterior surface comprising a substantially pure stoichiometric tilm of said metallic oxide.
Claim 3
Dependent Claim
20 words
The electrode of Claim 1 wherein said oxide has been deposited by sputtering in a reactive atmosphere rich in oxygen.
Claim 4
Dependent Claim
27 words
The electrode of Claim 1 wherein said metallic oxide is a stoichiometrically pure metallic oxide of the Me 0 composition where x and y are positive integers.
Claim 5
Dependent Claim
18 words
The electrode of Claim 1, 2 or 3, wherein said metallic oxide is deposited on a dielectric surface.
Claim 6
Dependent Claim
20 words
An electrochemical system including an electrode as claimed in any preceding claim for monitoring an ionic species of the system.
Claim 7
Dependent Claim
96 words
An electrochemical system in which a pH monitoring electrode is used for pH monitoring by measuring the potential relative to a standard reference electrode, said pH monitoring electrode being coated with a film of a metallic oxide of Pt, Rh, Ir, Pd, Os, Ru, R b, Re, Rh, Ru, Mo and W or alloys thereof with each other or with other metals, the improvement comprising said pH electrode having an exterior surface comprising a thin film of said metallic oxide which is at least about 0.25 micrometers thick and which is deposited on a dielectric substrate.
Claim 8
Dependent Claim
96 words
An electrochemical system in which a pH monitoring electrode is used for pH monitoring by measuring the potential relative to a standard reference electrode, said pH monitoring electrode being coated with a film of a metallic oxide of Pt, Rh, Ir, Pd, Os, Ru, R b, Re, Rh, Ru, Mo and W or alloys thereof with each other or with other metals, the improvement comprising said pH electrode having an exterior surface comprising a thin film of said metallic oxide which is at least about 0.25 micrometers thick and which is deposited on a dielectric substrate.
References Cited (Backward Citations)
No citation records indexed.
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