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:
Apr. 09, 2002
Filed:
Nov. 15, 2000
Daniel A. Scherson, University Heights, OH (US);
Case Western Reserve University, Cleveland, OH (US);
Abstract
An electrode ( ) containing platinum has its surface modified with sulfur, tellurium, or selenium, or compounds thereof, which renders the surface highly selective for the conversion of oxygen to hydrogen peroxide. The high selectivity of the electrode, and its ability to function in acidic electrolytes make it suitable to a variety of electrochemical processes. In a preferred embodiment, an oxygen concentration device (A) incorporating the electrode as a cathode ( ) also includes an anode ( ) and a selective membrane ( ), formed from a solid polymer electrolyte material, between the anode and the cathode. An oxygen-containing atmosphere is brought into contact with the cathode where it is converted to hydrogen peroxide. The hydrogen peroxide passes through the membrane to the anode where it is reconverted to purified oxygen.