乳化剂司盘对SO_(4)^(2-)/ZrO_(2)固体超强酸催化性能的影响研究  

Research on the effect of emulsifier Span on the catalytic performance of SO_(4)^(2-)/ZrO_(2) solid superacid

作　　者：王双[1] 谭莉 傅小奇[1] WANG Shuang;TAN Li;FU Xiao-qi(School of Material Science&Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013

出　　处：《应用化工》2022年第7期1920-1923,共4页Applied Chemical Industry

基　　金：国家自然科学基金(51302113);江苏省博士后基金(2018K058C);江苏大学大学生创新创业训练项目(202010299622X)。

摘　　要：SO_(4)^(2-)促进的ZrO_(2)固体酸具有超强酸性,广泛应用于各类酸催化反应。然而如何可控地合成SO_(4)^(2-)/ZrO_(2)仍然是一项具有挑战性的课题。采用乳液燃烧法结合浸渍法制备了多孔SO_(4)^(2-)/ZrO_(2)固体超强酸。合成过程中采用不同碳链的司盘乳化剂调控SO_(4)^(2-)/ZrO_(2)的尺寸、形貌和结构,比较它们在邻二甲苯与苯乙烯的烷基化反应中的催化性能。结果表明,由司盘80合成的SO_(4)^(2-)/ZrO_(2)的催化性能最好,1-苯基-1-(3,4-二甲基苯基)-乙烷的收率在93%以上。SO_(4)^(2-)Promoted ZrO_(2)solid superacid has been widely used in various acid catalytic reactions.However,controllably synthesis of SO_(4)^(2-)/ZrO_(2)is still a challenging. Nanoporous SO_(4)^(2-)/ZrO_(2)solid superacid was prepared by emulsion combustion combined with impregnation method. During the synthesis,Span emulsifiers with different carbon chains were used to tailor the size,morphology and structure of SO_(4)^(2-)/ZrO_(2)solid acid. Their catalytic performances in the alkylation of o-xylene with styrene to produce 1-phenyl-1-xylyl ethane( PXE) were also investigated. The results showed that the resultant 3-SO_(4)^(2-)/ZrO_(2)synthesized by Span 80 exhibited the best catalytic performance,and the yield of PXE was more than 93%.

关 键 词：固体超强酸 ZrO_(2) 司盘 催化 1-苯基-1-(3 4-二甲基苯基)-乙烷 

分 类 号：TQ426[化学工程]