Patent · US Expired

Anode catalyst for fuel cells with polymer electrolyte membranes

US6066410A · kind A · utility

45Cited by

8References

14Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Emmanuel Auer · Frankfurt, DE
Walter Behl · Blankenbach, DE
Thomas Lehmann · Langenselbold, DE
Udo Stenke · Mainaschaff, DE

Key dates

Filing date	Dec 17, 1998
Grant date	May 23, 2000
Priority date	—
Expiry date	Dec 17, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A platinum/ruthenium alloy catalyst that includes finely dispersed alloy particles on a powdery, electrically conductive carrier material. The catalyst is particularly resistant to carbon monoxide poisoning when the alloy particles display mean crystallite sizes of 0.5 to less than 2 nm.

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