Formation free energy of sodium stannate measured using β-β″-Al2O3 ceramic electrolyte
文献类型：期刊论文
| 作者 | Wang Zhimeng1; Xie Hongwei1; Zhang Yi2; Zhai Yuchun1 |
| 刊名 | 稀有金属：英文版
 |
| 出版日期 | 2017 |
| 卷号 | 36.0期号:011页码:905 |
| ISSN号 | 1001-0521 |
| 关键词 | β-β''-Al_2O_3 electrolyte Electrochemistry Sodium stannate Formation free energy of sodium stannate |
| 英文摘要 | β-β″-Al2O3precursor powder was successfully prepared by a solid-phase sintering method with Li2CO3, Na2CO3 （as the sources of Li20 and Na20, respectively） and β″-Al2O3 powder as the raw materials. The precursor was characterized by X-ray diffraction （XRD） and scan- ning electron microscope （SEM）. The results indicate that the amount of Na20 in the raw materials has a great effect on the formation of β″-Al2O3 in the β-β″-Al2O3 precursor. When Na20 content is 10 wt%, the content of β″-Al2O3 phase reaches the maximum value of 86.24 wt% in the precursor. The β-β″-Al2O3 ceramic was prepared from β-β″-Al2O3 precursor powder by isostatic pressing and burying sintering process. The conductive property of the β-β″-Al2O3 ceramic was examined by electrochemical impedance spectroscopy （EIS） method, and the density was measured by the Archimedes method. The results reveal that when 10 wt% Na20 was added, the sample exhibits the best performance with the lowest resistivity of 4.51.cm and the highest density of 3.25 g.cm 3. A solid electrolyte battery of PtlSnQ, Na2SnO3113 β-β″-Al2O3 Na CrO2, Cr2lO3 Pt was assembled by the β-β″-Al2O3 electrolyte tube to measure the open potential of the resulting battery, and the formation free energy of sodium stannate was calculated In the temperature range of 1273-773 K, the relationship between formation free energy of sodiumstannate and temperature was generated as follows：△GNa2SnO3 0=-1040.83＋0.2221T±7.54. |
| 语种 | 英语 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/43930]  |
| 专题 | 中国科学院过程工程研究所 |
| 作者单位 | 1.东北大学 2.中国科学院过程工程研究所 |
| 推荐引用方式 GB/T 7714 | Wang Zhimeng,Xie Hongwei,Zhang Yi,et al. Formation free energy of sodium stannate measured using β-β″-Al2O3 ceramic electrolyte[J]. 稀有金属：英文版,2017,36.0(011):905. |
| APA | Wang Zhimeng,Xie Hongwei,Zhang Yi,&Zhai Yuchun.(2017).Formation free energy of sodium stannate measured using β-β″-Al2O3 ceramic electrolyte.稀有金属：英文版,36.0(011),905. |
| MLA | Wang Zhimeng,et al."Formation free energy of sodium stannate measured using β-β″-Al2O3 ceramic electrolyte".稀有金属：英文版 36.0.011(2017):905. |
入库方式： OAI收割
来源：过程工程研究所
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