Effects of Zr/Ce molar ratio and water content on thermal stability and structure of ZrO2-CeO2 mixed oxides prepared via sol-gel process
文献类型：期刊论文
| 作者 | Huang, Wenzhi1,2; Yang, Jili1,2; Wang, Chunjie1,2; Zou, Binglin1; Meng, Xiangsheng2,3; Wang, Ying1; Cao, Xueqiang1; Wang, Zhen3 |
| 刊名 | MATERIALS RESEARCH BULLETIN
 |
| 出版日期 | 2012-09-01 |
| 卷号 | 47期号:9页码:2349-2356 |
| 关键词 | Ceramics Sol Gel Chemistry X-ray Diffraction Raman Spectroscopy |
| ISSN号 | 0025-5408 |
| DOI | 10.1016/j.materresbull.2012.05.025 |
| 英文摘要 | ZrO2-CeO2 mixed oxides were synthesized via sol-gel process. Thermal stability, structure and morphology of samples were investigated by powder X-ray diffraction, FT-Raman spectroscopy, X-ray photoelectron spectroscopy and scanning electron microscopy. In this approach, the solvent composition and Zr/Ce molar ratio have great influences on the structure and morphology of final products. With decreasing water content in the mixed solvent, specific surface area of powders increased and the single tetragonal phase was obtained. Only when the volume ratio of water and ethanol and the Zr/Ce molar ratio were 1:1, tetragonal t ''-Zr0.5Ce0.5O2 could be stabilized in powders at temperature as high as 1000 degrees C. Meanwhile, tetragonal (t') and (t '') phases coexisted in Zr0.5Ce0.5O2 solid solution without peak splitting after calcination at 1100 degrees C, further transforming into cubic and tetragonal (t') phases at 1200 degrees C. The effective activation energy for Zr0.5Ce0.5O2 nanocrystallite growth during annealing is about 5.24 +/- 0.15 kJ/mol. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000309081400037 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47945]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Cao, Xueqiang |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Rare Earth Resources Utilizat, Changchun Inst Appl Chem, Changchun 130022, Jilin, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun Inst Appl Chem, Changchun 130022, Jilin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Wenzhi,Yang, Jili,Wang, Chunjie,et al. Effects of Zr/Ce molar ratio and water content on thermal stability and structure of ZrO2-CeO2 mixed oxides prepared via sol-gel process[J]. MATERIALS RESEARCH BULLETIN,2012,47(9):2349-2356. |
| APA | Huang, Wenzhi.,Yang, Jili.,Wang, Chunjie.,Zou, Binglin.,Meng, Xiangsheng.,...&Wang, Zhen.(2012).Effects of Zr/Ce molar ratio and water content on thermal stability and structure of ZrO2-CeO2 mixed oxides prepared via sol-gel process.MATERIALS RESEARCH BULLETIN,47(9),2349-2356. |
| MLA | Huang, Wenzhi,et al."Effects of Zr/Ce molar ratio and water content on thermal stability and structure of ZrO2-CeO2 mixed oxides prepared via sol-gel process".MATERIALS RESEARCH BULLETIN 47.9(2012):2349-2356. |
入库方式： OAI收割
来源：化学研究所
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