High performance anode with dendritic porous structure for low temperature solid oxide fuel cells
By Shao, Xin; Rickard, William D. A.; Dong, Dehua; Dang, Huu; Saunders, Martin; Dodd, Aaron; Parkinson, Gordon; Li, Chun-Zhu
Published in International Journal of Hydrogen Energy
2018
Abstract
A dendritic porous supported microstructure simultaneously creates small pore size and broad gas diffusion pathways in a solid oxide fuel cell anode membrane. This microstructure also achieves pore sizes that reduce with increasing depth within the membrane without increasing the structure tortuosity. Such a microstructure supplies high triple phase boundary density, fast gas diffusion and low polarization resistance. Here we characterise the performance of a porous anode with such a dendritic microstructure. The solid oxide fuel cell with this high performance anode achieved 0.92 W cm?2 power density at 600
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