High Oxide Ion Conduction in Molten Na2W2O7
文献类型：期刊论文
| 作者 | Xu, JG; Li, YC; Wang, JH; Bao, HL; Wang, JQ; Zhu, CL; Ye, LT; Xie, K; Kuang, XJ |
| 刊名 | ADVANCED ELECTRONIC MATERIALS
 |
| 出版日期 | 2018 |
| 卷号 | 4期号:12页码:- |
| 关键词 | TEMPERATURE CARBONATE DIFFUSION IMPEDANCE |
| ISSN号 | 2199-160X |
| DOI | 10.1002/aelm.201800352 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Recently, oxide ion transport in molten electrolytes has attracted increased attention, and molten electrolytes based on Bi2O3, V2O5 and TeO2 oxides have shown excellent oxide ion conductivity and thus possess great potential as electrochemical energy materials. A new concept of molten oxide fuel cells (MOFCs) is proposed as a promising energy technology that can work in the intermediate temperature range of 500-800 degrees C, complementary to solid oxide fuel cells (SOFCs). Here, oxide ion transport in molten Na2W2O7 is presented, with a recorded oxide ion conductivity of approximate to 0.015 S cm(-1) at 750 degrees C and delivered power density of 121 mW cm(-2) as a MOFC electrolyte operating at 750 degrees C supported by an insulating Al2O3 matrix. This represents a significant advance to the MOFC output compared with the only previous performance reported (11.5 mW cm(-2)) achieved using a molten TeO2-based electrolyte. The W L-3-edge extended X-ray absorption fine structure spectra suggests that the disordered coordination-number-variable WO4+x mixed polyhedral network plays an important role in the oxide ion conduction in the molten Na2W2O7. These results emphasize a great opportunity to exploit oxide ion conductors within the molten oxide family, which can bring a brighter prospect to the MOFCs. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/30965]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, 239 Zhang Heng Rd, Shanghai 201204, Peoples R China 2.Guangxi Univ, Coll Mat Sci & Engn, Guilin Univ Technol,MOE Key Lab New Proc Technol, Key Lab Nonferrous Met Oxide Elect Funct Mat & De, Guilin 541004, Peoples R China 3.Chinese Acad Sci, Key Lab Design & Assembly Funct Nanostruct, Fujian Inst Res Struct Matter, Fuzhou 350002, Fujian, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, JG,Li, YC,Wang, JH,et al. High Oxide Ion Conduction in Molten Na2W2O7[J]. ADVANCED ELECTRONIC MATERIALS,2018,4(12):-. |
| APA | Xu, JG.,Li, YC.,Wang, JH.,Bao, HL.,Wang, JQ.,...&Kuang, XJ.(2018).High Oxide Ion Conduction in Molten Na2W2O7.ADVANCED ELECTRONIC MATERIALS,4(12),-. |
| MLA | Xu, JG,et al."High Oxide Ion Conduction in Molten Na2W2O7".ADVANCED ELECTRONIC MATERIALS 4.12(2018):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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