Preparation of SO3/gamma-Al2O3 solid acid catalyst and characterization of its structure and acidity
文献类型：期刊论文
| 作者 | Yao, RP; Zhang, MJ; Yang, J; Yi, DL; Xu, J; Deng, F; Yue, Y; Ye, CH |
| 刊名 | ACTA CHIMICA SINICA
 |
| 出版日期 | 2005-02-28 |
| 卷号 | 63期号:4页码:269-273 |
| 关键词 | SO3/gamma-Al2O3 solid acid catalyst solid-state NMR acid site structure |
| 英文摘要 | A solid acid catalyst SO3/gamma-Al2O3 was prepared by adsorption of SO3 gas onto the surfaces of activated gamma-Al2O3. The structure and acidity of the catalyst were studied by XRD, NMR, FT-IR, TG-DTA and NH3-TPD method. The results indicated that SO3 reacted with activated gamma-Al2O3 to form a small quantity of Al-2(SO4)(3), and at the same time, the adsorption of SO3 on the surface of gamma-Al2O3 introduced two different kinds of Bronsted acid sites, which can be attributed to two different acid-hydroxyl groups, including the bridging hydroxyl groups (S-OH-Al, giving rise to an H-1 resonance at ca. delta 4.3) and the terminal hydroxyl groups attached to S atoms (S-OH, giving rise to an H-1 resonance at ca. delta 11.2). The structure of Bronsted acid sites on the surface of catalyst SO3/gamma-Al2O3 has been proposed based on H-1/Al-27 TRAPDOR and FT-IR results. The acid strength of SO3/gamma-Al2O3 is stronger than that of zeolite HZSM-5, but still weaker than that of SO42-/gamma-Al2O3, which is a conventional solid superacid catalyst. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | GAMMA-ALUMINA ; NMR ; ADSORPTION ; NH3-TPD ; SO3 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000227223500003 |
| 公开日期 | 2015-07-28 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/4487]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Wuhan Univ Sci & Technol, Dept Chem, Wuhan 430081, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yao, RP,Zhang, MJ,Yang, J,et al. Preparation of SO3/gamma-Al2O3 solid acid catalyst and characterization of its structure and acidity[J]. ACTA CHIMICA SINICA,2005,63(4):269-273. |
| APA | Yao, RP.,Zhang, MJ.,Yang, J.,Yi, DL.,Xu, J.,...&Ye, CH.(2005).Preparation of SO3/gamma-Al2O3 solid acid catalyst and characterization of its structure and acidity.ACTA CHIMICA SINICA,63(4),269-273. |
| MLA | Yao, RP,et al."Preparation of SO3/gamma-Al2O3 solid acid catalyst and characterization of its structure and acidity".ACTA CHIMICA SINICA 63.4(2005):269-273. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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