Grain boundary conductivity of high purity neodymium-doped ceria nanosystem with and without the doping of molybdenum oxide
文献类型：期刊论文
| 作者 | Zhu JX ; Zhou DF ; Guo SR ; Ye JF ; Hao XF ; Cao XQ ; Meng J |
| 刊名 | journal of power sources
 |
| 出版日期 | 2007 |
| 卷号 | 174期号:1页码:114-123 |
| 关键词 | SOLID-SOLUTIONS ELECTRICAL-PROPERTIES IONIC-CONDUCTIVITY FUEL-CELLS CE0.8GD0.2O2-DELTA CERAMICS CE0.9GD0.1O2-DELTA CERAMICS TRANSPORT-PROPERTIES STABILIZED ZIRCONIA TRIVALENT CATIONS ELECTROLYTES |
| ISSN号 | 0378-7753 |
| 通讯作者 | zhou df |
| 中文摘要 | solid solutions of ce1-xndxo2-x/2 (0.05 <= x <= 0.2) and (ce1-xndx)(0.95)mo0.05o2-delta (0.05 <= x <= 0.2) have been synthesized by a modified sol-gel method. both materials have very low content of sio2 (similar to 27 ppm). their structures and ionic conductivities were characterized by x-ray diffraction (xrd), field-emission scanning electron microscopy (fesem) and electrochemical impedance spectroscopy (m). the xrd patterns indicate that these materials are single phases with a cubic fluorite structure. the powders calcined at 300 degrees c with a crystal size of 5.7 nm have good sinterability, and the relative density could reach above 96% after being sintered at 1450 degrees c. with the addition of moo3, the sintering temperature could be decreased to 1250 degrees c. impedance spectroscopy measurement in the temperature range of 250-800 degrees c indicates that a sharp increase of conductivity is observed when a small amount of nd2o3 is added into ceria, of which ce0.85nd0.15o1.925 (15ndc) shows the highest conductivity. with the addition of a small amount of moo3, the grain boundary conductivity of 15ndc at 600 degrees c increases from 2.56 s m(-1) to 5.62 s m(-1). |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000251591000014 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/14563]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhu JX,Zhou DF,Guo SR,et al. Grain boundary conductivity of high purity neodymium-doped ceria nanosystem with and without the doping of molybdenum oxide[J]. journal of power sources,2007,174(1):114-123. |
| APA | Zhu JX.,Zhou DF.,Guo SR.,Ye JF.,Hao XF.,...&Meng J.(2007).Grain boundary conductivity of high purity neodymium-doped ceria nanosystem with and without the doping of molybdenum oxide.journal of power sources,174(1),114-123. |
| MLA | Zhu JX,et al."Grain boundary conductivity of high purity neodymium-doped ceria nanosystem with and without the doping of molybdenum oxide".journal of power sources 174.1(2007):114-123. |
入库方式： OAI收割
来源：长春应用化学研究所
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