Abstract

A novel anode with microchanneled structure has been prepared by a mesh-assisted phase-inversion process. The uniform microchannels templated by mesh apertures cross the anode, and act as efficient gas diffusion pathways, with one end open and the other end stopped with a less porous layer, which functions as a support for thin electrolyte film and provides anode reaction sites. The solid oxide fuel cell supported on the microchanneled anode produced the maximum power densities of 550, 772 and 936mW/cm2 at 750, 800 and 850°C respectively, and no concentration polarization was found, suggesting there is efficient gas diffusion within the anode support.

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