| Original document(7 pages) Authorized document(7 pages) 中文版 |
Oxides CeO2, ZrO2, La2O3 and Pr6O11 or their salts are prepared into mixed ionic nitric acid solution; small amount of surfactant and carbon nanotube are added into precipitant solution to prepare mixed precipitant solution; two kinds of solution are made to react to produce precipitate; and the precipitate is incinerated at 400-700 deg.c to obtain quarternary nanometer-level cerium-based carbon nanotube-containing composite RE oxide. The composite oxide has high specific surface area at both low temperature and high temperature and high heat stability. It may be used in various catalytic reaction process, such as hydrosulfurization, hydrodenitrification, dehydrohalogenation, internal combustion engine waste gas treatment and dehydrocyclization of hydrocarbon and other organic matters, and is especially suitable for use in purifying automobile tail gas. |
Application Number
申请号 |
03104774 |
Application Date
申请日 |
2003.02.28 |
| Title 名称 |
Cerium-based carbon-containing nanotube composite RE oxide and its prepn |
Publication Number
公开号 |
1432429 |
Publication Date
公开日 |
2003.07.30 |
| Approval Pub. Date |
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Granted Pub. Date |
2004.11.17 |
| International Classification 分类号 |
B01D53/94,B01J23/10,B01J37/03 |
Applicant(s) Name
申请人 |
Tsinghua Univ. |
| Address 地址 |
100084 |
| Inventor(s) Name 发明人 |
Liu Mingfen, Wang Qiuping |
| Attorney & Agent 代理人 |
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| More information 更 多 信 息 |
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