水相界面催化
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- 英文论文题名：Pickering emulsion interface catalysis
- 论文作者：魏丽娟 ; 张明 ; 张亚斌 ; 杨恒权
- 英文论文作者：Lijuan Wei ; Ming Zhang ; Yabin Zhang ; Hengquan Yang ; School of Chemistry and Chemical Engineering ; Shanxi University
- 年：2016
- 作者机构：山西大学化学化工学院;
- 论文关键词：水相 ; 界面 ; 催化 ; Pickering乳液
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十三分会：绿色化学
- 语种：中文
- 分类号：O643.32
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十三分会 ; 绿色化学
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：447k
- 原文格式：D
- 会议级别：全国
摘要
水是一种绿色溶剂,自然界的反应都在水中进行的。然而,绝大多数有机物在水中不溶解,导致反应效率低。本文通对固体催化剂颗粒的表面修饰,赋予其界面活性,构建了固体催化剂稳定的乳液催化界面,观察到该体系可将反应效率提高1-2数量级,基于催化剂在乳液界面的组装发展了纳米颗粒催化剂原位回收循环使用的新方法,发现乳液界面体系催化反应的活化能要低于传统体系,利用乳滴的限域作用开拓了一锅串联反应新体系,实现了油水双相体系的连续化反应。
Organic-aqueous biphasic reactions are ubiquitous in laboratory synthesis and industrial fabrication of various fine chemicals. These systems, however, often suffer from low reaction efficiency due to the low solubility of oil in water. To address these issues, we synthesized interface-active solid catalysts by using a surface-modification protocol. Such solid catalysts can assemble at oil-water interfaces to stabilize Pickering emulsions. It is found that the reaction efficiency of Pickering emulsions is higher than that of the conventional biphasic systems.
Organic-aqueous biphasic reactions are ubiquitous in laboratory synthesis and industrial fabrication of various fine chemicals. These systems, however, often suffer from low reaction efficiency due to the low solubility of oil in water. To address these issues, we synthesized interface-active solid catalysts by using a surface-modification protocol. Such solid catalysts can assemble at oil-water interfaces to stabilize Pickering emulsions. It is found that the reaction efficiency of Pickering emulsions is higher than that of the conventional biphasic systems.
引文
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[3]Zhang W.J.;Fu L.M.;Yang H.Q.Chem Sus Chem,2014,7:391(cover)
[4]Liu H.F.;Zhang Z.M.;Yang H.Q.;Cheng F.Q.;Du Z.P.Chem Sus Chem,2014,7:1888
[5]Yang H.Q.;Fu L.M.;Wei L.J.;Liang J.F.and Binks B.P.J.Am.Chem.Soc.,2015,137:1362
[6]Huang J.P.and Yang H.Q.Chem.Commun.2015,51,7333
[7]Huang J.P.;Cheng F.Q.;Binks B.P and Yang H.Q.J.Am.Chem.Soc.,2015,137:15015
[2]Yang H.Q.;Zhou T.;Zhang W.J.Angew.Chem.Int.Ed.,2013,52:7455(VIP)
[3]Zhang W.J.;Fu L.M.;Yang H.Q.Chem Sus Chem,2014,7:391(cover)
[4]Liu H.F.;Zhang Z.M.;Yang H.Q.;Cheng F.Q.;Du Z.P.Chem Sus Chem,2014,7:1888
[5]Yang H.Q.;Fu L.M.;Wei L.J.;Liang J.F.and Binks B.P.J.Am.Chem.Soc.,2015,137:1362
[6]Huang J.P.and Yang H.Q.Chem.Commun.2015,51,7333
[7]Huang J.P.;Cheng F.Q.;Binks B.P and Yang H.Q.J.Am.Chem.Soc.,2015,137:15015