| 不同原料制备γ-Al2O3蜂窝陶瓷涂层的研究 |
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| 引用本文： | 王丽琼,王大祥,张兴燕,冯长根. 不同原料制备γ-Al2O3蜂窝陶瓷涂层的研究[J]. 工业催化, 2002, 10(3): 52-55 |
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| 作者姓名： | 王丽琼 王大祥 张兴燕 冯长根 |
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| 作者单位： | 北京理工大学机电工程学院，北京 100081 |
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| 摘 要： | 应用浸渍法和浆涂法，采用不同原料分别制备了五种活性氧化铝涂层及相应的钯复合金属氧化物型三元催化剂。详细比较并分析了五种涂层在晶型（XRD）、比表面及三元催化活性等方面的区别及原因。对比了五种涂层制备方法的优缺点。由氯化铝、硝酸铝、纳米氧化铝粉、拟薄水铝石及氢氧化铝溶胶单体为原料制得的涂层结晶好、比表面大。由拟薄水铝石及氢氧化铝溶胶单体制备的γ-Al2O3涂层工艺方法简单、成本较低、涂层性能符合要求，是一种更为实用的方法。
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| 关 键 词： | 蜂窝陶瓷 γ-Al2O3涂层 三元催化剂 晶型 比表面 |
| 文章编号： | 1008-1143(2002)03-0052-04 |
| 修稿时间： | 2001-09-10 |
Preparation of γ-Al2O3 coatings for ceramic honeycomb by different methods |
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| WANG Li qiong,WANG Da xiang,ZHANG Xing yan,FENG Chang gen. Preparation of γ-Al2O3 coatings for ceramic honeycomb by different methods[J]. Industrial Catalysis, 2002, 10(3): 52-55 |
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| Authors: | WANG Li qiong WANG Da xiang ZHANG Xing yan FENG Chang gen |
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| Affiliation: | School of Mechno-Electronics Engineering, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Five different γ-Al2O3 coatings for ceramic honeycomb and corresponding three-way catalysts (TWC ) were prepared from different materials by impregnation and slurry casting method. Difference among crystal form (XRD), surface area and catalytic activity of the five coatings and the causes were discussed. It is concluded that coatings with large surface area and favourable crystal form can be obtained using these five materials, but using pseudo-boehmite and aluminum hydroxide sol monomer as raw materials is more applicable. |
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| Keywords: | preparation ceramic honeycomb γ-Al2O3 coatings three-way catalyst material |
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