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:
Jan. 14, 1997
Filed:
Feb. 06, 1995
Daiki Engineering Co., Ltd., Tokyo, JP;
Abstract
The present invention provides highly durable electrodes for electrolysis, which are platinum group metal oxide-coated or composite oxide-coated Ti electrodes, comprising a sputtered film of a metal or an alloy consisting of at least one selected from the group of Ti, Zr, Nb and Ta to be transformed the metastable .beta. phase to the .alpha. phase in crystal structure by the heat treatment to prepare the active layer carried on the surface, as an intermediate layer at the interface between Ti substrate and electrocatalytic active layer, and method for preparation thereof. The electrodes allow stable electrolysis at low electrode potentials for long periods of time as highly durable electrodes for electrolysis, especially electrodes for oxygen evolution at high current density.