Platinum alloy catalyst for fuel cells and method of its production

US5489563A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Reinhold Brand · Hanau, DE
• Andreas Freund · Kleinostheim, DE
• Jutta Lang · Alzenau, DE
• Thomas Lehmann · Langenselbold, DE
• Johannes Ohmer · Zöblitz, DE
• Thomas Tacke · Friedrichsdorf, DE
• Gerhard Heinz · Bad Dürkheim, DE
• Robert Schwarz · Rodenbach, DE

Key dates

• Filing date: Oct 17, 1994
• Grant date: Feb 6, 1996
• Expiry date: Oct 17, 2014

Classification

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

Abstract

A ternary platinum alloy catalyst on a conductive carbon carrier for use in fuel cells is disclosed. For the production of the catalyst, nitrate salts are used as precursors of the alloy components and all alloy components are deposited concurrently on the carbon carrier. This method of procedure yields ageing-stable catalysts with high oxygen mass activity.