Metal-Coated Carbon Surfaces for Use in Fuel Cells
This invention relates to a highly efficient and inexpensive coating technique for coating a metal onto a carbon surfaces. Generally, the invention provides a method of coating a carbon article with a metal by cyclic voltametrically electrodepositing the metal on the carbon article by using surface electropolymerization, thereby forming a metal coating on the carbon article.
Potential commercial uses and users:
Stationary and vehicular power applications.
This invention is useful in designing fuel cell electrodes, especially in that the amount of platinum coating can be manipulated to any desired level. The invention clearly demonstrates the ability of oxygen reduction and hydrogen oxidation by the platinum coated surfaces and that these electrodes are highly stable in strong acidic media. The coating amounts can be controlled between 0.02 mg/cm2 to 0.11 mg/cm2 (geometric area) resulting in the formation of amono-layered nanocatalyst. This ultralow coating would lower the cost of fuel cell electrodes.
Rathindra N. Bose, Anima B. Bose
Type of Offer:
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