The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 1994
Filed:
Mar. 10, 1993
TDK Corporation, Tokyo, JP;
Abstract
An oxygen generating electrode has on a conductive substrate a first layer of metallic platinum and tantalum oxide containing 80-99 mol% of Ta and 20-1 mol% of Pt, a second layer of iridium oxide and tantalum oxide containing 80-99.9 mol% of Ir and 20-0.1 mol% of Ta, and preferably a third layer of iridium oxide and tantalum oxide containing 40-79.9 mol% of Ir and 60-20.1 mol% of Ta. In another embodiment, the first layer consists of iridium oxide and tantalum oxide and contains 14-8.4 mol% of Ir and 86-91.6 mol% of Ta. The electrode, when used as an anode in electrolysis with concomitant oxygen generation, can be used for an extended period at a low bath voltage. It is adapted for electrolysis at a high current density of more than 100 A/cm.sup.2 since it maintains mechanical strength and has a long effective life. It experiences a minimal change of oxygen overvoltage with time.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile