Surface decoration of Ba-enriched Fe-based air__electrodes with Co-based catalysts for robust__protonic ceramic electrochemical cells
Surface decoration of Ba-enriched Fe-based air__electrodes with Co-based catalysts for robust__protonic ceramic electrochemical cells
研究概述
在富Ba铁基空气电极Ba1.02FeO3−δ表面构筑Co3O4及原位Ba–Co–O复合涂层，兼顾铁基骨架热机械稳定性与钴物种催化活性。质子陶瓷单电池最大功率密度1.46 W/cm²，650 ℃运行600小时，并经受17次300–650 ℃热循环。
谱图与表征信息
Fig. 3 Characterization of material properties. (a) Normalized XANES spectra recorded at the Fe K-edge of BF, B1.02F, and B1.02F-CC; (b) an enlarged view of the absorption edge region marked by the dashed rectangle in (a); (c) Arrhenius-type plots of the electrical conductivity for BF, B1.02F, and B1.02F-CC. The plot is presented in this form for direct readability of the conductivity values. Note that the activation energy should be obtained from the linear fit of log(sT) versus 1000/T (not shown); (d) TGA curves of BF, B1.02F, and B1.02F-CC measured from 200 to 800 °C.