Preparation of Highly Active Pt3Ni Nanoctahedra as Electrocatalyst Toward Oxygen Reduction in Fuel Cells

 Production of large quantity of PtNi nanoparticles that exhibit very high oxygen reduction activity for polymer electrolyte membrane fuel cells (PEMFCs) 

 Technology Overview:  

 A novel wet-chemical approach is employed to prepare monodisperse Pt3Ni nanoctahedra and PtCu nanocubes terminated with specific facets. The oxygen reduction reaction activity on the Pt3Ni is ~ 5.1 folds higher than that of nanocubes with a similar size. A particular, scalable reaction introduces tungsten (W) or other shape control and separation agents, which also ensure a steady growth of particles. Other transition metals used in the bimetallic compositions are cobalt and iron. 

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 Advantages:  

• Reaction is easily conducted and scaled-up.
• Low platinum & high activity.
• Long life-time of catalyst.
• Can produce large quantity of PtNi nanoparticles that exhibit very high oxygen reduction activity and are promising for polymer electrolyte membrane fuel cells (PEMFCs).

 Applications:  

 List of potential uses or markets.  

Intellectual Property Summary:

• U.S. 8,741,801