The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2013
Filed:
Jul. 29, 2008
Naoko Iwata, Nagoya, JP;
Hiroaki Takahashi, Toyota, JP;
Peter Bogdanoff, Berlin, DE;
Sebastian Fiechter, Berlin, DE;
Iris Herrmann-geppert, Berlin, DE;
Ulrike Kramm, Berlin, DE;
Naoko Iwata, Nagoya, JP;
Hiroaki Takahashi, Toyota, JP;
Peter Bogdanoff, Berlin, DE;
Sebastian Fiechter, Berlin, DE;
Iris Herrmann-Geppert, Berlin, DE;
Ulrike Kramm, Berlin, DE;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Helmholtz-Zentrum Berlin Fuer Materialien und Energie GmbH, Berlin, DE;
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.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile