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:
May. 29, 1984
Filed:
Jan. 10, 1983
Kingo Itaya, Tagajo, JP;
Kimio Shibayama, Sendai, JP;
Shinobu Toshima, Sendai, JP;
Tatsuaki Ataka, Tokyo, JP;
Koji Iwasa, Tokyo, JP;
Kabushiki Kaisha Daini Seikosha, Tokyo, JP;
Abstract
A functional electrode is disclosed which is usable as an electrochromic display electrode, as a catalytic electrode effective to catalyze the evolution of oxygen and chlorine gases and the like. The electrode is composed of a conductor and a film deposited on the surface of the conductor, the film being comprised of a compound of the formula M.sup.I M(III)[M'(II)(CN).sub.6 ] or M(III).sub.4 [M'(II)(CN).sub.6 ].sub.3 wherein M(III) is Fe(III), Ru(III) or Os(III), M'(II) is FE(II), Ru(II) or Os(II) and M.sup.I is an alkali metal cation, with the proviso that said compound does not contain both Fe(III) and Fe(II). The functional electrode is produced by electrodepositing a compound of the formula M.sup.I M(III)[M'(II)(CN.sub.6)] or M(III).sub.4 [M'(II)(CN).sub.6 ].sub.3 on a conductor, from an aqueous solution containing M(III) ions and [M'(III)(CN).sub.6 ].sup.3- ions, wherein M(III), M'(II) and M.sup.I are as already defined and M'(III) is Fe(III), Ru(III) or Os(III), with the proviso that the aqueous solution does not contain both FE(III) and [Fe(III)(CN).sub.6 ].sup.3- ions and the deposited compound does not contain both Fe(III) and Fe(II).