Abstract A SrCe 0.7 Zr 0.2 Eu 0.1 O 3-α (SCZE-SG) electrolyte was successfully fabricated by a sol-gel method using Eu 2 O 3 , Sr(C 2 H 3 O 2 ) 2 2 O, (NH 4 ) 2 Ce(NO 3 ) 6 and Zr(NO 3 ) 4 ·5H 2 O as raw materials and was subsequently reacted with NaCl/KCl. The obtained materials were characterized by XRD and SEM techniques. XRD results showed that SCZE-SG and NaCl/KCl did not chemically react. The SEM images revealed that the particle size of SCZE-SG is uniform, and NaCl/KCl is coated on the surface of SCZE-SG, acting as a binder in SrCe 0.7 Zr 0.2 Eu 0.1 O 3-α -NaCl-KCl (SCZE-SG-NK). The oxide ion and protonic conduction of SCZE-SG was studied using gas concentration cells, and the results indicate that the durability of the fuel cell based on SCZE-SG-NK exhibits excellent cell performance with a maximum power output density of approximately 0.58 W cm −2 during a 40-h operation at 700 °C.

中文翻译：

---

Eu掺杂SrCeO 3 -SrZrO 3 固溶体/NaCl-KCl复合电解质的中温燃料电池耐久性

摘要 使用Eu 2 O 3 , Sr(C 2 H 3 O 2 ) 2 2 O, (NH 4 )通过溶胶-凝胶法成功制备了SrCe 0.7 Zr 0.2 Eu 0.1 O 3-α (SCZE-SG)电解液以2 Ce(NO 3 ) 6 和Zr(NO 3 ) 4 ·5H 2 O为原料，与NaCl/KCl反应。通过XRD和SEM技术对所得材料进行表征。XRD 结果表明SCZE-SG 和NaCl/KCl 没有发生化学反应。SEM 图像显示 SCZE-SG 的粒径均匀，并且 NaCl/KCl 包覆在 SCZE-SG 表面，作为 SrCe 0.7 Zr 0.2 Eu 0.1 O 3-α -NaCl-KCl (SCZE -SG-NK）。使用气体浓差电池研究了 SCZE-SG 的氧化物离子和质子传导，结果表明基于 SCZE-SG-NK 的燃料电池的耐久性表现出优异的电池性能，最大功率输出密度约为 0。