Thin film catalyst on porous media and electrochemical cell employing the same
AssigneeFord Global Technologies, LLC
InventorAlireza Pezhman Shirvanian
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Abstract
In one embodiment, a catalyst assembly includes a porous substrate material including a substrate bulk and an external surface, the substrate bulk including a network of pores for diffusing fluids there-through, and a two dimension (2-D) extensive catalyst supported on at least a portion of the network of pores to provide a substantially constant catalyst concentration profile along a thickness dimension of the substrate bulk. In certain instances, the network of pores includes an internal pore surface for supporting at least a portion of the 2-D extensive catalyst.
Claims19
A catalyst assembly comprising:
- a porous substrate material including an external surface and a substrate bulk including a network of diffusive pores and first and second substrate layers respectively having first and second average pore sizes different from one another;
- and
- a two dimensional extensive catalyst supported on at least a portion of the network of diffusive pores to provide a substantially constant catalyst concentration profile along a thickness of the substrate bulk.
A catalyst assembly comprising:
- a porous substrate material including an external surface and a substrate bulk including a network of diffusive pores and a plurality of wires extending longitudinally from an internal pore surface of the network of diffusive pores;
- and
- a two dimensional extensive catalyst supported on at least a portion of the network of diffusive pores to provide a substantially constant catalyst concentration profile along a thickness of the substrate bulk.
An electrochemical cell comprising:
- a catalyst assembly including a porous substrate material including a substrate bulk and an external surface, the substrate bulk including a network of diffusive pores and a plurality of wires extending longitudinally from an internal pore surface of the network of diffusive pores;
- a two dimensional extensive catalyst supported on at least a portion of the network of diffusive pores to provide a substantially constant catalyst concentration profile along a thickness of the substrate bulk;
- and
- a volume of electrolyte positioned next to the catalyst assembly and having a solvent content of no greater than 5 percent by weight.
Dependencies are inferred from the claim text.