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| TiO2-Al2O3复合载体的比较 | |
| 引用本文： | 鄢景森,王海彦,施岩,张深.TiO2-Al2O3复合载体的比较[J].石油学报(石油加工),2012,28(Z1):96-98. |
| 作者姓名： | 鄢景森 王海彦 施岩 张深 |
| 作者单位： | 1. 中国石油大学,山东青岛266555;辽宁科技学院,辽宁本溪117004;辽宁石油化工大学,辽宁抚顺113001 2. 中国石油大学,山东青岛266555;辽宁石油化工大学,辽宁抚顺113001 3. 辽宁石油化工大学,辽宁抚顺,113001 4. 辽宁科技学院,辽宁本溪,117004 |
| 摘 要： | 采用沉淀法、共沉淀法、溶胶凝胶法(W)和溶胶-凝胶法(E)制备TiO2-Al2O3复合载体,并采用XRD、BET和TEM等方法进行表征。结果表明,沉淀法、溶胶凝胶法(W)和溶胶-凝胶法(E)制成的复合载体基本保留了最初引入的γ-Al2O3的孔特征,具有较大的比表面积、孔体积和孔径,TiO2以锐钛矿晶型存在,且主要以表面富集的形式分散在γ-Al2O3表面;而共沉淀法制成的复合载体比表面积、孔体积和孔径最小,孔径分布更加集中,TiO2在整个体相均匀分散。 |
| 关 键 词： | 钛-铝 复合载体 溶胶凝胶法 沉淀法 共沉淀法 |
Comparison of TiO2-Ai2O3 Composite Supports Prepared by Different Methods |
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| YAN Jingsen , WANG Haiyan , SHI Yan , ZHANG Shen.Comparison of TiO2-Ai2O3 Composite Supports Prepared by Different Methods[J].Acta Petrolei Sinica (Petroleum Processing Section),2012,28(Z1):96-98. | |
| Authors: | YAN Jingsen WANG Haiyan SHI Yan ZHANG Shen |
| Affiliation: | 1.China University of Petroleum,Qingdao 266555,China;2.Liaoning College of Science and Technology,Benxi 117004,China;3.Liaoning University of Petroleum Chemical Technology,Fushun 113001,China) |
| Abstract: | TiO2-Al2O3 composite supports were prepared by precipitation,co-precipitation,sol-gel(W) and sol-gel(E)methods and characterized by means of XRD,BET method and TEM.The results showed that composite supports prepared by precipitation,sol-gel(W)and sol-gel(E)methods basically retained the original pore properties of γ-Al2O3,and had higher surface area,pore volume and pore diameter.Meanwhile,TiO2 was enriched on the γ-Al2O3 surface with anatase structure.The composite support prepared by the co-precipitation method had the smallest surface area,pore volume and pore diameter,but had centralised pore diameter distribution,and TiO2 was evenly dispersed on the γ-Al2O3surface. |
| Keywords: | titania-alumina combined support sol-gel precipitated co-precipitated |
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