金属-有机框架材料负载的Pd纳米颗粒高效催化有机反应
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- 英文论文题名：Metal-organic frameworks-immobilized metal nanoparticles for efficient catalysis
- 论文作者：曹荣
- 英文论文作者：Rong Cao ; State Key Laboratory of Structural Chemistry ; Fujian Institute of Research on the Structure of Matter ; Chinese Academy of Sciences
- 年：2016
- 作者机构：中国科学院福建物质结构研究所,结构化学国家重点实验室;
- 论文关键词：金属-有机框架 ; 多相催化 ; 金属纳米颗粒 ; 合金 ; 协同催化
- 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-第三十二分会： 多孔功能材料
- 语种：中文
- 分类号：O621.251
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十二分会 ; 多孔功能材料
- 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：162k
- 原文格式：D
- 会议级别：全国
摘要
金属-有机框架化合物(MOFs)因其具有超大的比表面积、可调的孔道及功能修饰,因此可作为良好的载体负载纳米颗粒进行高效催化。最近,我们采用三种策略将单金属或合金纳米颗粒负载在MOFs上,所得的复合材料能高效催化有机反应。MOFs的孔道能够限制纳米颗粒的生长及溢出,我们采用浸渍法或等体积浸渍法将Pd纳米颗粒限域在MIL-101或全氟烷烃修饰的NU-1000的介孔孔道中,该系列材料能够高效催化吲哚的C2芳香化反应(Fig.1)。MOFs上的官能团可以稳定纳米材料,我们采用离子交换法将Pd纳米颗粒负载在胺基化的MOFs,该系列材料可以高效催化氯代芳香烃脱氯及Suzuki、Heck反应。MOFs材料不仅仅是只作为载体负载纳米颗粒,还可以提供活性位点与纳米颗粒进行协同增强反应。我们将PtP d合金纳米颗粒分别包裹在微介孔MIL-53及ZIF-8中,其中PtP d/MM-MIL-53可以在无氧条件下协同催化二级醇脱氢反应,而PtP d@ZIF-8可以在光照条件下催化微量乙烯降解反应。上述复合材料比较稳定,可以实现多次循环反应。
MOFs-immobilized metal nanoparticles have been emerging as promising catalysts for efficient catalysis due to their high surface areas,tunable pores and postmodification.Ultrafine Pd NPs encapsulated in the mesopores of MIL-101 or perfluoroalkane chains decorated NU-1000 can be used for efficient C-H activation reactions.Pd NPs were stabilized by a series of amine functionalized MOFs,which showed high activity in the dehalogenation of aryl chlorides,Suzuki and Heck reactions.PtPd bimetallic alloy NPs were embedded in MOFs,which exhibited synergistic enhanced catalysis of oxidant-free dehydrogenation of alcohols and excellent synergistic photocatalytic activity in the transformation of the adsorbed ethylene into CO_2 and H_2O at room temperature.
MOFs-immobilized metal nanoparticles have been emerging as promising catalysts for efficient catalysis due to their high surface areas,tunable pores and postmodification.Ultrafine Pd NPs encapsulated in the mesopores of MIL-101 or perfluoroalkane chains decorated NU-1000 can be used for efficient C-H activation reactions.Pd NPs were stabilized by a series of amine functionalized MOFs,which showed high activity in the dehalogenation of aryl chlorides,Suzuki and Heck reactions.PtPd bimetallic alloy NPs were embedded in MOFs,which exhibited synergistic enhanced catalysis of oxidant-free dehydrogenation of alcohols and excellent synergistic photocatalytic activity in the transformation of the adsorbed ethylene into CO_2 and H_2O at room temperature.
引文
[1]a)Huang,Y.;Lin,Z.;Cao,R.Chem.Eur.J.2011,17:12706;b)Huang,Y.;Shen,M.;Wang,X.;Huang,P.;Chen,R.;Lin,Z.;Cao,R.J.Catal.2016,333:1.