Process for the electrochemical preparation of hydrogen peroxide

US6685818B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Thomas Lehmann · Langenselbold, DE
• Patrik Stenner · Hanau, DE

Key dates

• Filing date: Sep 25, 2001
• Grant date: Feb 3, 2004
• Expiry date: Nov 3, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/50
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A process for the electrochemical preparation of hydrogen peroxide, in particular an aqueous hydrogen peroxide solution, by the electrochemical reaction of oxygen and hydrogen in a fuel cell. By increasing the thickness of the membrane layer in a membrane electrode unit (MEU) in the fuel cell, it is possible to substantially increase the concentration of H2O2 in the aqueous hydrogen peroxide solution obtained at the cathode.