Surface-appropriate lipophobicity - Application in isobutene oligomerization over Teflon-modified silica-supported 12-silicotungstic acid
文献类型：期刊论文
| 作者 | Chen GF ; Li J ; Yang XG ; Wu Y |
| 刊名 | applied catalysis a-general
 |
| 出版日期 | 2006 |
| 卷号 | 310页码:16-23 |
| 关键词 | SHAPE-SELECTIVE ALKYLATION TOLERANT SOLID ACID ZEOLITE-BETA ISOBUTANE/BUTENE ALKYLATION HYDROPHOBIC PROPERTIES CATALYSTS WATER MORDENITE BIPHENYL CHEMISTRY |
| ISSN号 | 0926-860x |
| 通讯作者 | yang xg |
| 中文摘要 | a series of silica-supported 12-silicotungstic acid catalysts (h4siw12o40, abbreviated as hsiw), modified with various loadings of teflon (hsiw/sio2-teflon), were prepared by an impregnation method. the surface properties of the catalysts were studied by means of x-ray diffraction (xrd), scanning electron microscopy (sem), bet, infrared (ir) spectroscopy, nh3-tpd and the drop shape analysis (dsa). sem results combined with energy-dispersive x-ray (edx) measurements of hsiw/sio2-teflon revealed that f-compound (teflon) is effectively coated on the catalyst surface. the contact angles for water and oil of 50 wt% hsiw/sio2 and hsiw/sio2-teflon indicate that hsiw/sio2-teflon catalyst enhances not only the surface hydrophobicity but also the surface lipophobicity by means of the addition of teflon. silica-supported 12-silicotungstic acid modified with teflon exhibits higher c-8(=) selectivity and longer lifetime than that of silica-supported 12-silicotungstic acid in isobutene oligomerization. thus, surface-appropriate lipophobicity of catalysts may be effective for decreasing the interaction between coke precursors and the catalyst surface and for removing deposited coke more easily. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000239869200002 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/16257]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Chen GF,Li J,Yang XG,et al. Surface-appropriate lipophobicity - Application in isobutene oligomerization over Teflon-modified silica-supported 12-silicotungstic acid[J]. applied catalysis a-general,2006,310:16-23. |
| APA | Chen GF,Li J,Yang XG,&Wu Y.(2006).Surface-appropriate lipophobicity - Application in isobutene oligomerization over Teflon-modified silica-supported 12-silicotungstic acid.applied catalysis a-general,310,16-23. |
| MLA | Chen GF,et al."Surface-appropriate lipophobicity - Application in isobutene oligomerization over Teflon-modified silica-supported 12-silicotungstic acid".applied catalysis a-general 310(2006):16-23. |
入库方式： OAI收割
来源：长春应用化学研究所
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