Dual-Scale Porous Electrodes for Solid Oxide Fuel Cells from Polymer Foams


  • This work was supported by DOE-NETL under grant No. DE-FC26-02NT41572.


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Porous nanostructured mixed-conducting materials with dual-scale porosities are fabricated using foam-like templates. The porous structures, as shown in the Figure, contain large pores (0.8–1.5 μm) for rapid gas transport and small pores (≈ 2.5 and 35 nm) for fast electrochemical reactions that require large surface areas. Thus, these electrode materials are ideally suited for electrochemical and catalytic applications, such as for solid oxide fuel cells.