Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Making catalytic electrode – process only
Reexamination Certificate
2007-11-16
2010-11-02
Hailey, Patricia L (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Making catalytic electrode, process only
C502S185000, C502S325000, C502S339000, C420S461000, C420S462000, C420S466000, C420S580000, C429S047000, C429S047000, C429S047000, C429S047000, C429S047000
Reexamination Certificate
active
07825057
ABSTRACT:
The present invention relates to a process for preparing electrode catalyst materials for a polymer electrolyte membrane fuel cell (PEMFC), and particularly to a high-performance platinum-non-platinum mixed electrode catalyst (Pt—RuOs/C) having a physically mixed structure of RuOs alloy and platinum materials, which is prepared by adding a small amount of platinum (Pt) to RuOs alloy materials highly dispersed on a carbon support, where the amount of platinum used is drastically reduced as compared to the conventional platinum materials, thus lowering the manufacturing cost.
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“Complexed sol-gel synthesis of improved Pt-Ru-Os-based anode electro-catalysts for direct methanol fuel cells,” Yousef M. Alyousef et al. Journal of Physics and Chemistry of Solids 70 (2009), pp. 1019-1023.
Cho Il Hee
Cho Yong Hun
Hwang In Chul
Kwon Nak Hyun
Park In Su
Corless Peter F.
Edwards Angell Palmer & & Dodge LLP
Hailey Patricia L
Hyundai Motor Company
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