Template-free synthesis of molybdenum oxide-based hierarchical microstructures at low temperatures
文献类型：期刊论文
| 作者 | Fang, Liang1,2; Shu, Yuying1; Wang, Aiqin1; Zhang, Tao1 |
| 刊名 | journal of crystal growth
 |
| 出版日期 | 2008-10-15 |
| 卷号 | 310期号:21页码:4593-4600 |
| 关键词 | Crystal morphology Hierarchical microstructures Nanostructures Hydrothermal crystal growth Oxides |
| 产权排序 | 1;1 |
| 通讯作者 | 张涛 |
| 英文摘要 | molybdenum oxide-based hierarchical microstructures assembled radially by anisotropic nanostructures (nanoplates/microprisms/nanorods) have been synthesized at low temperatures for the first time via a facile template-free hydrothermal approach. the influence of hydrothermal temperature, time, concentration of the peroxomolybdic acid solution, and additives on the morphology of products has been investigated. it has been found that the morphology of urchin-shaped microstructures of peroxo-modified molybdenum oxide hydrates can be controlled in the temperature range of 65-75 degrees c. the as-synthesized uniform microstructures, which are collected from the 0.9 mol/l molybdenum solutions after 14h at 75 degrees c, are 35-40 mu m in diameter, and they are constructed by nanoscale blocks of 300-400 nm in width and similar to 190 nm in thickness. the dimensions of microstructures and their building blocks are dramatically magnified when the molybdenum concentration is reduced, while those dimensions can be efficiently decreased by adding small quantities of hno3 or lino3 into the precursor solution. by moderate calcination, alpha-moo3 with a hierarchical microstructure can be achieved. the possible formation mechanism of urchin-shaped microstructures is discussed using the results of uv-visible spectroscopy and electron microscopy. (c) 2008 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | crystallography ; materials science, multidisciplinary ; physics, applied |
| 研究领域[WOS] | crystallography ; materials science ; physics |
| 关键词[WOS] | field-emission properties ; one-dimensional nanostructures ; nanowire arrays ; moo3 ; nanobelts ; nanorods ; growth ; nanotubes ; trioxide ; morphology |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000260988600020 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/100843]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, Liang,Shu, Yuying,Wang, Aiqin,et al. Template-free synthesis of molybdenum oxide-based hierarchical microstructures at low temperatures[J]. journal of crystal growth,2008,310(21):4593-4600. |
| APA | Fang, Liang,Shu, Yuying,Wang, Aiqin,&Zhang, Tao.(2008).Template-free synthesis of molybdenum oxide-based hierarchical microstructures at low temperatures.journal of crystal growth,310(21),4593-4600. |
| MLA | Fang, Liang,et al."Template-free synthesis of molybdenum oxide-based hierarchical microstructures at low temperatures".journal of crystal growth 310.21(2008):4593-4600. |
入库方式： OAI收割
来源：大连化学物理研究所
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