Electrochemical performance and stability of cobalt-free Ln(12)Sr(0.8)NiO(4) (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; Wen, Yabing; Zhang, Jingchao; Lu, Yang1; Ye, Xiaofeng; Wen, Zhaoyin1 |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2018 |
| 卷号 | 267页码:269 |
| 关键词 | La1.2Sr0.8NiO4 Pr1.2Sr0.8NiO4 Air electrode Proton-conducting reversible solid oxide cells |
| ISSN号 | 0013-4686 |
| DOI | 10.1016/electacta.2018.02.053 |
| 英文摘要 | Cobalt-free Ruddlesden-Popper structured Ln(1.2)Sr(0.8)NiO(4) (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 Ln(1.2)Sr(0.8)NiO(4) are close to those of Ba(Ce,Zr)O-3-based proton conductors. The polarization resistances of symmetrical cells with Ln(1.2)Sr(0.8)NiO(4) (LSN) and Pr1.2Sr0.8NiO4 (PSN) electrodes are as low as 0.15 and 0.23 Omega cm(2) at 700 degrees C, respectively. Besides, Ln(1.2)Sr(0.8)NiO(4) can remain stable structure over 100 h in humidified air (20 vol% H2O) at 800 degrees C. Furthermore, proton conducting reversible solid oxide cells (PC-RSOCs) with LSN and PSN air electrodes exhibit maximum power densities of 046 and 035 W cm(-2) in solid oxide fuel cell mode at 700 degrees C, respectively. Meanwhile, the same cells achieve current densities as high as 1.37 and 1.12 A cm(-2) in solid oxide electrolysis cell mode at 700 degrees 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 Ln(1.2)Sr(0.8)NiO(4) could be suitable candidates of air electrodes in intermediate-temperature PC-RSOCs. (C) 2018 Elsevier Ltd. All rights reserved. |
| 学科主题 | Electrochemistry |
| WOS记录号 | WOS:000427382500029 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | This work was financially supported by National Natural Science Foundation of China (No. 51302296, No. 51672294 and No. 51372259) and Shanghai Engineering Research Center of Inorganic Energy Materials and Electric Power Sources (15DZ2281200). ; This work was financially supported by National Natural Science Foundation of China (No. 51302296, No. 51672294 and No. 51372259) and Shanghai Engineering Research Center of Inorganic Energy Materials and Electric Power Sources (15DZ2281200). |
| 源URL | [http://ir.sic.ac.cn/handle/331005/25088]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, 1295 DingXi Rd, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R 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 Ln(12)Sr(0.8)NiO(4) (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 Ln(12)Sr(0.8)NiO(4) (Ln=La and Pr) air electrodes for proton-conducting reversible solid oxide cells.ELECTROCHIMICA ACTA,267,269. |
| MLA | Yang, Shaojing,et al."Electrochemical performance and stability of cobalt-free Ln(12)Sr(0.8)NiO(4) (Ln=La and Pr) air electrodes for proton-conducting reversible solid oxide cells".ELECTROCHIMICA ACTA 267(2018):269. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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