The structural evolution of hollow boehmite particles induced by citric acid
文献类型：期刊论文
| 作者 | Han, Qiang1,2; Wu, Xiaofeng1; Liao, Yuchao1,2; Li, Dan1,2; Yue, Renliang1; Liu, Haidi1; Chen, Yunfa1
|
| 刊名 | MATERIALS LETTERS
 |
| 出版日期 | 2013-03-01 |
| 卷号 | 95期号:0页码:9-12 |
| 关键词 | Structural Boehmite Nanoparticles Microstructure Citric acid Surfaces |
| 英文摘要 | Spherical boehmite particles with hollow interiors were synthesized in the hydrothermal condition using aluminum nitrate as Al3+ source, urea as precipitator and citric acid as structure directing agent, which was further transformed to hollow gamma-Al2O3 products after simply heating post-treatment under 700 degrees C for 4 h. The crystal phase, morphologies and microstructure of the sample were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), respectively. It is suggested that the as-synthesized boehmite powder possesses hollow interior with ca.1 mu m in diameter and shells with 100 nm in thickness, and the calcinated sample have gamma crystal phase without morphological changes after heat post-treatment. The interesting hollow structure evolution was further investigated by comparative experiments and a reasonable evolution mechanism was proposed, in which the chelation of citric acid with Al3+ species and the dissolution of boehmite play the critical role in forming the hollow structure of boehmite. (C) 2012 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Materials Science, Multidisciplinary ; Physics, Applied |
| 研究领域[WOS] | Materials Science ; Physics |
| 关键词[WOS] | SUPPORTED METAL-CLUSTERS ; HYDROTHERMAL SYNTHESIS ; ALUMINA |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000316509700003 |
| 公开日期 | 2015-05-27 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/13701]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Qiang,Wu, Xiaofeng,Liao, Yuchao,et al. The structural evolution of hollow boehmite particles induced by citric acid[J]. MATERIALS LETTERS,2013,95(0):9-12. |
| APA | Han, Qiang.,Wu, Xiaofeng.,Liao, Yuchao.,Li, Dan.,Yue, Renliang.,...&Chen, Yunfa.(2013).The structural evolution of hollow boehmite particles induced by citric acid.MATERIALS LETTERS,95(0),9-12. |
| MLA | Han, Qiang,et al."The structural evolution of hollow boehmite particles induced by citric acid".MATERIALS LETTERS 95.0(2013):9-12. |
入库方式： OAI收割
来源：过程工程研究所
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