| Effect of Precursor pH on One-dimensional Growth of Mullite Prepared by Sol-Gel Method with WO3 Catalyst | |
| Wu Jiang ; Lin Hong ; Li Jian-Bao ; Li Jun-Feng | |
| 2010-10-12 ; 2010-10-12 | |
| 关键词 | mullite sol-gel one-dimensional growth WO3 pH HIGH-TEMPERATURE MAS NMR Materials Science, Ceramics |
| 中文摘要 | One-dimensional mullite particles were synthesized by sol-gel method from hydrous aluminium chloride (AlCl3 center dot 6H(2)O) and tetraethoxysilane (TEOS) as raw materials and WO3 as catalyst. WO, had a desired effect on the anisotropic growth of mullite particles by forming aluminum tungstate (AIWO(4),) as growth template at low temperature, which was greatly dependent on the precursor pH. NMR results indicate that the pH (hiring gelation can highly influence the homogeneity of precursor, mullite formation and microstructural features. One-dimensional mullite particles are significant only when the precursor pH is lower than 7. Morphology of the mullite particles synthesized with pH >= 7 transforms from anisotropy to isotropy and platelike. |
| 语种 | 英语 ; 英语 |
| 出版者 | SCIENCE PRESS ; BEIJING ; 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/78393]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Wu Jiang,Lin Hong,Li Jian-Bao,et al. Effect of Precursor pH on One-dimensional Growth of Mullite Prepared by Sol-Gel Method with WO3 Catalyst[J],2010, 2010. |
| APA | Wu Jiang,Lin Hong,Li Jian-Bao,&Li Jun-Feng.(2010).Effect of Precursor pH on One-dimensional Growth of Mullite Prepared by Sol-Gel Method with WO3 Catalyst.. |
| MLA | Wu Jiang,et al."Effect of Precursor pH on One-dimensional Growth of Mullite Prepared by Sol-Gel Method with WO3 Catalyst".(2010). |
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