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| 论文编号: |
122214O120110045 |
| 第一作者所在部门: |
610组 |
| 中文论文题目: |
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| 英文论文题目: |
Silylated Co/SBA-15 catalysts for Fischer–Tropsch synthesis
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| 论文题目英文: |
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| 作者: |
孙予罕，贾丽涛
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| 论文出处: |
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| 刊物名称: |
Journal of Solid State Chemistry
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| 年: |
2011
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| 卷: |
184 |
| 期: |
3 |
| 页: |
488 |
| 联系作者: |
孙予罕，贾丽涛 |
| 收录类别: |
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| 影响因子: |
2.261
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| 摘要: |
A seriesofsilylatedCo/SBA-15catalystswerepreparedviathereactionofsurfaceSi–OHofSBA-15with hexamethyldisilazane(HMDS)underanhydrous,vapor phaseconditions,andthencharacterizedby FT-IR, N2 physisorption,TG,XRD,andTPR-MS.Theresultsshowedthatorganicmodificationledtoa silylatedSBA-15surfacecomposedofstablehydrophobicSi–(CH3)3 speciesevenaftercalcinations and H2reductionat673K.Furthermore, the hydrophobics urfaces trongly in fluenced bothmetal dispersion andreducibility.Comparedwithnon-silylatedCo/SBA, Co/S-SBA(impregnationaftersilylation)showeda high activity,due to the better cobaltreducibility on the hydrophobic support.However,S-Co/SBA
(silylationafterimpregnation had the lowest FT activity among all the catalysts, duetothe lowercobalt reducibility along with the steri chindrance of grafted–Si(CH3)3 for there-adsorptionof a-olefins. |
| 英文摘要: |
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| 外单位作者单位: |
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| 备注: |
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关闭窗口 |
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