Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing
Reexamination Certificate
2007-12-25
2007-12-25
Lorengo, J. A. (Department: 1755)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Inorganic carbon containing
C502S181000, C429S047000, C429S047000, C429S047000, C429S047000, C429S047000
Reexamination Certificate
active
10657649
ABSTRACT:
The invention is directed to a simple method for preparing highly dispersed, highly loaded platinum metal elements on various carbon substrates, including conductive carbon black, which is utilized in fuel cell electrodes. Utilizing carbon with a controlled point of zero charge (PZC) and maintaining a desired pH value throughout the adsorption of metal onto the carbon substrate, a high metal loading is achieved for a given surface area of the carbon substrate.
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Hao Xianghong
Regalbuto John R.
Greer Burns & Crain Ltd
Hailey Patricia L.
Lorengo J. A.
The Board of Trustees of the University of Illinois
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