Patent · US Expired

Polymer-stabilized metal colloid solutions, method for producing said solutions and use of the same as catalysts for fuel cell

US6462095B1 · kind B1 · utility

65Cited by

9References

16Claims

0Family size

Assignee

Axiva GmbH · DE

Inventors

Harald Bönsel · Niedernhausen, DE
Gregor Deckers · Frankfurt, DE
Georg Frank · Nürnberg, DE
Hans Millauer · Eschborn, DE
Thomas Soczka-Guth · Schelklingen, DE

Key dates

Filing date	Aug 31, 2000
Grant date	Oct 8, 2002
Priority date	—
Expiry date	Aug 31, 2020

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E60/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Polymer-stabilized metal colloid solutions, process for preparing them and their use as catalysts for fuel cells. Process for preparing metal colloid solutions by reacting a platinum compound and, if desired, one or more compounds of Rh, Ru, Ir or Pd with a reducing agent. At least one cation-exchange polymer is used for stabilizing the metal colloid solution.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.