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 WZ ; Yang JL ; Wang CJ ; Zou BL ; Meng XS ; Wang Y ; Cao XQ ; Wang Z |
| 刊名 | materials research bulletin
 |
| 出版日期 | 2012 |
| 卷号 | 47期号:9页码:2349-2356 |
| 关键词 | TIO2 NANOPARTICLES HYDROLYSIS WATER ZIRCONIA TEMPERATURE CEXZR1-XO2 TITANIA POWDERS CRYSTALLIZATION CATALYSTS COATINGS |
| ISSN号 | 0025-5408 |
| 通讯作者 | cao xq |
| 中文摘要 | 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. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000309081400037 |
| 公开日期 | 2013-04-23 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/47965]  |
| 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 | Huang WZ,Yang JL,Wang CJ,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 WZ.,Yang JL.,Wang CJ.,Zou BL.,Meng XS.,...&Wang Z.(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 WZ,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：长春应用化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。