Patent · US Active

Method for preparing fuel cell electrode catalyst and solid polymer fuel cell

US8455384B2 · kind B2 · utility

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1References

7Claims

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Assignees

Inventors

Naoko Iwata · Oshima, JP
Hiroaki Takahashi · Shizuoka, JP
Peter Bogdanoff · Berlin, DE
Sebastian Fiechter · Berlin, DE
Iris Herrmann-Geppert · Berlin, DE
Ulrike Kramm · Berlin, DE

Key dates

Filing date	Jul 29, 2008
Grant date	Jun 4, 2013
Priority date	—
Expiry date	Nov 12, 2028

Classification

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

Abstract

According to the present invention, the catalyst performance of a chelate catalyst comprising a complex of a macrocyclic compound such as a porphyrin derivative is improved. Also, the following method is provided: a method for preparing a fuel cell electrode catalyst comprising a nitrogen-containing metal complex in which a metallic element is coordinated with a macrocyclic organic compound, such method comprising the steps of: adding tin oxalate to the nitrogen-containing metal complex; and baking a mixture of the nitrogen-containing metal complex and tin oxalate in an inert gas atmosphere, wherein elution of metal tin is carried out via acid treatment.

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