Preparation of Novel Nydrophobic Catalyst and Its Catalytic Activity in Ethylbenzene Oxidation

doi:10.3969/j.issn.1006-396X.2012.03.004

Journal of Petrochemical Universities ›› 2012, Vol. 25 ›› Issue (3): 18-21.DOI: 10.3969/j.issn.1006-396X.2012.03.004

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Preparation of Novel Nydrophobic Catalyst and Its Catalytic Activity in Ethylbenzene Oxidation

1.College of Chemistry and Material Science, Liaoning Shihua University, Fushun Liaoning 113001, P.R.China;  2.Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian Liaoning 116023,P.R.China

Received:2012-04-13 Revised:1900-01-01 Published:2012-06-25 Online:2012-06-25

新型疏水性催化剂的制备及其催化乙苯氧化性能

赵文广¹,宋奇²,陈晨²,陈平¹,王峰^2*

(1.辽宁石油化工大学化学与材料科学学院,辽宁抚顺113001;2.中国科学院大连化学物理研究所,辽宁大连116023)

作者简介:赵文广（１９８４－），男，河南平顶山，在读硕士
基金资助:
国家自然科学基金项目（２１０７３１８４）。

Abstract

Abstract: The hydrophobic catalysts Me/PMHS (Me includes Co, Mn, Cu and Fe) were prepared with polymethylhydrosiloxane (PMHS) in the reverse micro emulsion system．These materials exhibited excellent catalytic activity for selective oxidation of ethylbenzene to acetophenone. Under 1.0 MPa O₂ at 393 K for 10 h over Co/PMHS catalyst, the con version of ethylbenzene reached 52.0% with the selectivity of acetophenone 84.8%．These catalysts were well characterized with IR, MS and contact angle measurement. It is concluded that the hydrophobic surface of cobalt oxide play a key role in facilitating ethylbenezne adsorption and acetophenone desorption．

Key words: Reverse-phase microemulsion, Hydrophobic, Ethylbenzene, Solvent-free

摘要： 以聚甲基氢硅氧烷为硅源，在反相微乳液体系中制备了新型疏水性催化剂Ｍｅ／ＰＭＨＳ（Ｍｅ为Ｃｏ，Ｍｎ，Ｃｕ和Ｆｅ）。该催化剂在催化乙苯选择氧化反应中显示出较高的活性：在３９３Ｋ，１．０ＭＰａ氧气，以Ｃｏ／ＰＭＨＳ为催化剂，无溶剂条件下反应１０ｈ，转化率达５２．０％，苯乙酮选择性达８４．８％。本研究采用红外光谱、质谱、接触角测定仪对催化剂的结构、表面状态等进行了表征，结果表明，催化剂表面的疏水性有利于反应物乙苯的吸附和产物的脱附，从而提高催化剂催化乙苯选择氧化的活性。

关键词: 反相微乳液 , 疏水 , 乙苯 , 无溶剂

ZHAO Wen-guang,SONG Qi,CHEN Chen,et al. Preparation of Novel Nydrophobic Catalyst and Its Catalytic Activity in Ethylbenzene Oxidation[J]. Journal of Petrochemical Universities, 2012, 25(3): 18-21.

赵文广,宋奇,陈晨,陈平,王峰. 新型疏水性催化剂的制备及其催化乙苯氧化性能[J]. 石油化工高等学校学报, 2012, 25(3): 18-21.

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Preparation of Novel Nydrophobic Catalyst and Its Catalytic Activity in Ethylbenzene Oxidation

新型疏水性催化剂的制备及其催化乙苯氧化性能

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