Regulating the spatial distribution of metal nanoparticles within metal-organic frameworks to enhance catalytic efficiency

Qiu Yang, Wenxian Liu, Bingqing Wang, Weina Zhang, Xiaoqiao Zeng, Cong Zhang, Yongji Qin, Xiaoming Sun, Tianpin Wu, Junfeng Liu (), Fengwei Huo () and Jun Lu ()
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Qiu Yang: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
Wenxian Liu: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
Bingqing Wang: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
Weina Zhang: Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech)
Xiaoqiao Zeng: Argonne National Laboratory
Cong Zhang: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
Yongji Qin: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
Xiaoming Sun: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
Tianpin Wu: Argonne National Laboratory
Junfeng Liu: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology
Fengwei Huo: Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech)
Jun Lu: Argonne National Laboratory

Nature Communications, 2017, vol. 8, issue 1, 1-9

Abstract: Abstract Composites incorporating metal nanoparticles (MNPs) within metal-organic frameworks (MOFs) have broad applications in many fields. However, the controlled spatial distribution of the MNPs within MOFs remains a challenge for addressing key issues in catalysis, for example, the efficiency of catalysts due to the limitation of molecular diffusion within MOF channels. Here we report a facile strategy that enables MNPs to be encapsulated into MOFs with controllable spatial localization by using metal oxide both as support to load MNPs and as a sacrificial template to grow MOFs. This strategy is versatile to a variety of MNPs and MOF crystals. By localizing the encapsulated MNPs closer to the surface of MOFs, the resultant MNPs@MOF composites not only exhibit effective selectivity derived from MOF cavities, but also enhanced catalytic activity due to the spatial regulation of MNPs as close as possible to the MOF surface.

Date: 2017
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DOI: 10.1038/ncomms14429

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