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机构地区:[1]南京林业大学化学工程学院,南京210037 [2]南京林业大学理学院,南京210037
出 处:《化学进展》2016年第7期1016-1028,共13页Progress in Chemistry
基 金:江苏省高校自然科学重大项目(No.15KJA220001)资助~~
摘 要:金属有机骨架(metal-organic framework,简称MOF)材料的研究在近几年相当热门,因其各种优异的性质,在催化领域得到广泛应用。然而,其本身作为催化剂的研究并不多且应用较为局限。但MOF材料规则的多孔结构及较大的比表面积为负载高分散金属纳米催化剂提供了天然的物理空间,能有效阻止金属纳米颗粒的团聚及浸出;使催化剂与反应物充分接触,有利于催化反应的进行,这也是近年来MOF材料作为催化剂的一个主要研究方向。本文着重讨论通过不同的方法将金属纳米颗粒负载在MOF材料上制备双金属或多金属催化剂并在催化领域的应用。重点介绍一锅合成法、化学吸附还原负载法、金属有机化学气相沉积法、固相研磨法等制备方法,较为详细地介绍了其在氧化(醇、烷烃、烯烃和CO氧化)、加氢(羰基类化合物和烯烃类化合物加氢)、Knoevenagel缩合、光催化(光催化降解有机物和光解水产氢)等反应中的应用,讨论了这类新型功能催化剂材料所存在的问题并对其进一步发展前景做出展望。Metal organic frameworks (MOFs) are very popular materials and have been largely researched in recent years. They have extremely wide ranges of applications in catalysis because of their variety of excellent properties. However, the research of MOFs themselves as catalysts is limited, the regularly porous structure and large surface area of MOFs can provide a natural physical space for loading highly dispersed metal nanocatalyst, which prevents the aggregation and leaching of metal nanoparticals. This has also been the major research direction of MOF catalysts in the last few years. This review reports the preparation methods of loading metal nanoparticles on MOFs to form bi- and multi-metallic catalysts and their applications in catalysis. The preparation methods, such as one pot synthesis, adsorption-reduction method, metal organic chemical vapor deposition method and solid grinding method are highlighted, and their applications in oxidation ( the oxidation of alcohols, alkanes, alkenes and CO), hydrogenation ( the hydrogenation of carbonyl compounds and olefinic compounds) ,Knoevenagel condensation and photocatalytic reaction (photocatalytic degradation of organic compounds and light-driven water splitting to produce hydrogen) are discussed in detail. In addition, the existing problems and the development prospects of such bi and multi-metallic catalysts are also addressed in this review.
关 键 词:金属有机骨架材料 金属纳米粒子 双金属或多金属催化剂 制备 催化反应
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