Nanocrystalline La2Mo2O9 and its characterization
文献类型：期刊论文
| 作者 | Li Q ; Xia T ; Li JY ; Liu XD ; Ma XF ; Meng J ; Cao XQ |
| 刊名 | journal of rare earths
 |
| 出版日期 | 2004 |
| 卷号 | 22页码:102-106 |
| 关键词 | OXIDE-ION CONDUCTORS ELECTRICAL-CONDUCTIVITY |
| ISSN号 | 1002-0721 |
| 通讯作者 | cao xq |
| 中文摘要 | in this work, both the thermal expansion and electrical conductivity of nanocrystalline la2mo2o9 were studied. the nanocrystalline powder of la2mo2o9 was obtained by sol-gel method, and with the help of shp (superhigh pressure) up to 4.5 x 10(4) atm at 700 degrees c for a short time, and the nanocrystalline powder was densified without obvious particle size growth. the electrical conductivity of nanocrystalline la2mo2o9 was one order of magnitude lower than that of the microcrystalline sample at the same temperature. owing to the phase transition, the microcrystalline la2mo2o9 has an abrupt increase of thermal expansion with a peak value of 48 x 10(-6) k-1 at 556 degrees c. for the nanocrystalline material, the peak value increases to 112 x 10(-6) k-1 at 520 degrees c. on the other hand, above 600 degrees c the significant growth of particle size of the nanocrystalline la2mo2o9 was observed, accompanying by a tremendous increase of thermal expansion with a peak value of 1565 x 10(-6) k-1 at 620 degrees c. the electrical conductivity of la1.6nd0.4mo2o9 at 800 degrees c is 0.14 s center dot cm(-1) which is about one third higher than that of la2mo2o9. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000227614200026 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/14787]  |
| 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 | Li Q,Xia T,Li JY,et al. Nanocrystalline La2Mo2O9 and its characterization[J]. journal of rare earths,2004,22:102-106. |
| APA | Li Q.,Xia T.,Li JY.,Liu XD.,Ma XF.,...&Cao XQ.(2004).Nanocrystalline La2Mo2O9 and its characterization.journal of rare earths,22,102-106. |
| MLA | Li Q,et al."Nanocrystalline La2Mo2O9 and its characterization".journal of rare earths 22(2004):102-106. |
入库方式： OAI收割
来源：长春应用化学研究所
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