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US 8,801,961 B2Granted
Electrocatalyst support and catalyst supported thereon
AssigneeUniversity of South Carolina
InventorsJohn W. Weidner, Brenda L. Garcia
Life of this patent
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Abstract
In one embodiment of the present disclosure an electrocatalyst support for a fuel cell is provided which includes a doped titania metal oxide. The dopant includes a valve metal. The doped titania metal oxide has a BET surface area of greater than 20 m2/g.
Claims7
A process for synthesizing a doped titania metal oxide electrocatalyst support for a fuel cell comprising:
- providing a surfactant, a titania metal oxide, and a dopant wherein the dopant comprises niobium or tantalum;
- forming a solution by utilizing the surfactant, titania metal oxide and dopant;
- removing a doped titania metal oxide from the solution to form a support wherein the doped titania metal oxide is subjected to temperatures of less than about 500° C. throughout the process, wherein a phase transition of the doped metal oxide is avoided, and the dopant is present in the doped titania metal oxide in an amount of from about 1 to about 35 weight percent;
- depositing an electrocatalyst on the doped titania metal oxide support such that the electrocatalyst forms alloyed particles on the doped titania metal oxide support.
1 more element
Dependencies are inferred from the claim text.