Nanocrystalline Ba_0·6Sr_0·4Co_0·8Fe_0·2O₃ (BSCF-6482) powder is synthesized by combustion synthesis technique. Powder calcined at 1000 °C reveals phase pure cubic perovskite. Transmission electron microscopic (TEM) analysis exhibits soft agglomerates of average size ∼50 nm wherein interplanar spacing for (110) and (221) resembles to the cubic lattice. While DC electrical conductivity of 23 S cm⁻¹@800 °C is observed, interfacial polarization measured by electrochemical impedance spectroscopy is found to be the least @850 °C (0.18 Ω cm²). Cell performance has been compared among BSCF-6482, BSCF-5582 and LSCF-6482 mixed ionic and electronic conducting (MIEC) and conventional electrode (LSM). Higher performance (1.37 A/cm²@1.3 V,800 °C) with high hydrogen generation rate (0.57 Nl/cm²/h) is found during steam electrolysis with cell fabricated using BSCF-6482 having minimal area specific resistance 0.33 Ω cm². Under similar operating condition, BSCF-5582, LSCF-6482 and LSM exhibit hydrogen generation rate of 0.35, 0.28 and 0.23 Nl/cm²/h respectively. Cell microstructure is clinically correlated with the higher reactivity of BSCF-6482 air electrode in steam electrolysis.

通过燃烧合成技术合成了纳米晶Ba _0·6 Sr _0·4 Co _0·8 Fe _0·2 O ₃（BSCF-6482）粉末。在1000°C下煅烧的粉末显示出纯的立方钙钛矿相。透射电子显微镜（TEM）分析显示平均大小约为50 nm的软团聚物，其中（110）和（221）的晶面间距类似于立方晶格。尽管在800°C时观察到23 S cm ^-1的直流电导率，但通过电化学阻抗谱测量的界面极化在850°C时最小（0.18Ωcm ²）。在BSCF-6482，BSCF-5582和LSCF-6482混合离子导电和电子导电（MIEC）以及常规电极（LSM）之间已比较了电池性能。使用BSCF-6482制成的电池具有最小的面积比电阻0.33Ωcm时，在蒸汽电解过程中发现了较高的性能（1.37 A / cm ² @ 1.3 V，800°C）和高的氢气产生速率（0.57 Nl / cm ² / h）²。在类似的操作条件下，BSCF-5582，LSCF-6482和LSM的氢气产生速率分别为0.35、0.28和0.23 Nl / cm ² / h。细胞微结构在临床上与BSCF-6482空气电极在蒸汽电解中的较高反应性相关。