Electrochemical performance and stability of cobalt-free Ln1.2Sr0.8NiO4(Ln=La and Pr) air electrodes for proton-conducting reversible solid oxide cells
文献类型：期刊论文
| 作者 | Yang, Shaojing1,2; Wen, Yabing1; Zhang, Jingchao1; Lu, Yang1,2; Ye, Xiaofeng1; Wen, Zhaoyin1,2 |
| 刊名 | Electrochimica Acta
 |
| 出版日期 | 2018 |
| 卷号 | 267页码:269-277 |
| ISSN号 | 00134686 |
| DOI | 10.1016/j.electacta.2018.02.053 |
| 英文摘要 | Cobalt-free Ruddlesden-Popper structured Ln1.2Sr0.8NiO4(Ln = La and Pr) have been synthesized by a modified Pechini method, moreover, their thermal and electrochemical properties as well as performance of cells with proton-conducting electrolytes have been investigated. Experimental results reveal that the thermal expansion coefficients of Ln1.2Sr0.8NiO4are close to those of Ba(Ce,Zr)O3-based proton conductors. The polarization resistances of symmetrical cells with La1.2Sr0.8NiO4(LSN) and Pr1.2Sr0.8NiO4(PSN) electrodes are as low as 0.15 and 0.23 Ω cm2at 700 °C, respectively. Besides, Ln1.2Sr0.8NiO4can remain stable structure over 100 h in humidified air (20 vol% H2O) at 800 °C. Furthermore, proton-conducting reversible solid oxide cells (PC-RSOCs) with LSN and PSN air electrodes exhibit maximum power densities of 0.46 and 0.35 W cm−2in solid oxide fuel cell mode at 700 °C, respectively. Meanwhile, the same cells achieve current densities as high as 1.37 and 1.12 A cm−2in solid oxide electrolysis cell mode at 700 °C with a given voltage of 1.3 V, respectively. In addition, both of two cells with LSN and PSN air electrodes present acceptable short-term stability under reversible operation condition. These encouraging results suggest that Ln1.2Sr0.8NiO4could be suitable candidates of air electrodes in intermediate-temperature PC-RSOCs. © 2018 Elsevier Ltd |
| 出版者 | Elsevier Ltd |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25327]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 DingXi Road, Shanghai; 200050, China; 2.University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing; 100049, China |
| 推荐引用方式 GB/T 7714 | Yang, Shaojing,Wen, Yabing,Zhang, Jingchao,et al. Electrochemical performance and stability of cobalt-free Ln1.2Sr0.8NiO4(Ln=La and Pr) air electrodes for proton-conducting reversible solid oxide cells[J]. Electrochimica Acta,2018,267:269-277. |
| APA | Yang, Shaojing,Wen, Yabing,Zhang, Jingchao,Lu, Yang,Ye, Xiaofeng,&Wen, Zhaoyin.(2018).Electrochemical performance and stability of cobalt-free Ln1.2Sr0.8NiO4(Ln=La and Pr) air electrodes for proton-conducting reversible solid oxide cells.Electrochimica Acta,267,269-277. |
| MLA | Yang, Shaojing,et al."Electrochemical performance and stability of cobalt-free Ln1.2Sr0.8NiO4(Ln=La and Pr) air electrodes for proton-conducting reversible solid oxide cells".Electrochimica Acta 267(2018):269-277. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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