Platinum-free chelate-catalyst material for the selective reduction of oxygen and method for production thereof

US7534739B2 · kind B2 · utility

Assignee

• HELMHOLTZ-ZENTRUM BERLIN FÜR MATERIALIEN UND ENERGIE GMBH · DE

Inventors

• Marcus Hilgendorff · Hannover, DE
• Iris Dorbandt · Berlin, DE
• Hendrik Schulenburg · Königs Wusterhausen, DE
• Michael Bron · Kfar Sava, IL
• Sebastian Fiechter · Berlin, DE
• Peter Bogdanoff · Berlin, DE
• Helmut Tributsch · Berlin, DE

Key dates

• Filing date: Jul 3, 2002
• Grant date: May 19, 2009
• Expiry date: Jan 16, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/50
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A platinum-free chelate catalyst material consisting of at least one unsupported transition metal, a nitrogen-containing organo-metallic transition complex, a further transition metal other than the unsupported transition metal and a chalcogenic compound.