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Nanoparticle/Metal–Organic Framework Composites for Catalytic Applications: Current Status and Perspective

机译:纳米/金属有机骨架复合材料在催化领域的应用:现状与展望

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摘要

Nanoparticle/metal–organic frameworks (MOF) based composites have recently attracted significant attention as a new class of catalysts. Such composites possess the unique features of MOFs (including clearly defined crystal structure, high surface area, single site catalyst, special confined nanopore, tunable, and uniform pore structure), but avoid some intrinsic weaknesses (like limited electrical conductivity and lack in the “conventional” catalytically active sites). This review summarizes the developed strategies for the fabrication of nanoparticle/MOF composites for catalyst uses, including the strategy using MOFs as host materials to hold and stabilize the guest nanoparticles, the strategy with subsequent MOF growth/assembly around pre-synthesized nanoparticles and the strategy mixing the precursors of NPs and MOFs together, followed by self-assembly process or post-treatment or post-modification. The applications of nanoparticle/MOF composites for CO oxidation, CO2 conversion, hydrogen production, organic transformations, and degradation of pollutants have been discussed. Superior catalytic performances in these reactions have been demonstrated. Challenges and future developments are finally addressed.
机译:作为一种新型催化剂,基于纳米颗粒/金属有机骨架(MOF)的复合材料最近引起了广泛的关注。此类复合材料具有MOF的独特功能(包括明确定义的晶体结构,高表面积,单中心催化剂,特殊的受限纳米孔,可调性和均匀的孔结构),但避免了一些固有的弱点(例如导电性有限和缺乏“常规的”催化活性位点”。这篇综述总结了用于催化剂用途的纳米颗粒/ MOF复合材料制造的开发策略,包括使用MOF作为基质材料来保持和稳定客体纳米颗粒的策略,随后MOF生长/组装在预合成纳米颗粒周围的策略以及该策略。将NP和MOF的前体混合在一起,然后进行自组装过程或后处理或后修饰。讨论了纳米颗粒/ MOF复合材料在CO氧化,CO2转化,产氢,有机转化和污染物降解中的应用。已经证明在这些反应中具有优异的催化性能。挑战和未来的发展终于解决了。

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