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Surface Additives for Enhanced Electrode Performance

IB-1406

E.O. Lawrence Berkeley National Laboratory

APPLICATIONS OF TECHNOLOGY:

  • Gas separation
  • Fuel cells
  • Catalytic reactors
  • Other devices

ADVANTAGES:

  • Enhanced catalytic properties of cathode
  • Highly fuel efficient
  • Almost nonpolluting

 
 
     

ABSTRACT:

Berkeley Lab researchers Lutgard DeJonghe, Steven Visco, and Craig Jacobson have focused their attention on solid oxide fuel cells (SOFC) and related technologies. Fuel cells "burn" hydrogen or hydrocarbons to produce electricity. They are highly fuel-efficient and almost non-polluting, making them an attractive alternative for energy generation. Some solid oxide fuel cells burn hydrocarbons by first converting them to hydrogen, while others burn them directly. The latter are the leading candidates for commercial applications.

This invention allows the addition of highly reactive elements to the surface interface. These highly reactive electrode materials, known to be of value for enhancing catalytic properties of the cathode, are added where they are needed—at the surface—without sustaining the chemical reactions that occur when they are fired on. In this way, moderate performance cathodes, known to be chemically stable at firing temperatures, can be used for microstructure formation. High performance additives then can be incorporated into the electrodes without significantly altering the microstructure or creating performance-limiting reaction layers.

STATUS:

REFERENCE NUMBER: IB-1406

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Last updated: 07/02/2010