| Effect of Li2O Addition on the Preparation of (Y2-yLiy)Ti2O7-y | |
|---|---|
| 學年 | 98 |
| 學期 | 1 |
| 出版（發表）日期 | 2009-12-01 |
| 作品名稱 | Effect of Li2O Addition on the Preparation of (Y2-yLiy)Ti2O7-y |
| 作品名稱（其他語言） | |
| 著者 | Su, Wen-ping; Lee, Yu-hsuen; Hsieh, Ching-tien; Sheu, Hwo-shuenn; Lee, Jyh-fu; Chiang, Yong-ping; Kao, H.-C. I. |
| 單位 | 淡江大學化學學系 |
| 出版者 | 臺北市：中國化學學會 |
| 著錄名稱、卷期、頁數 | Journal of the Chinese Chemical Society=中國化學會會誌 56(6), pp.1112-1117 |
| 摘要 | Anew series of (Y2-yLiy)Ti2O7-y having an ordered pyrochlore phase was prepared by a solid state reaction method with a solid solution range of 0.05 y 0.10. Unit cell parameters obtained by the Rietveld refinement method shows that the a-axis decreases linearly with increasing the amount of Li ion addition,indicating the successful incorporation of the Li ion into unit cell. The average x-fractional coordinate of the O(1) site depends on the ionic radius ratio of r(A3+)/r(Ti4+) in theA2Ti2O7 with a pyrochlore phase. The Ti K-edge XANES spectra of the (Y2-yLiy)Ti2O7-y show that the valence of the Ti ions is slightly less than 4 so that Ti is in the mixed valence state. Average particle size increases with increasing the amount of extra Li ion addition, which acts as a flux to lower the melting point of the materials. |
| 關鍵字 | |
| 語言 | en_US |
| ISSN | 0009-4536 |
| 期刊性質 | 國內 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | Kao, H.-C. I. |
| 審稿制度 | 否 |
| 國別 | TWN |
| 公開徵稿 | |
| 出版型式 | ,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/61572 ) |
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