title: Regulating the spatial distribution of metal nanoparticles within metal-organic frameworks to enhance catalytic efficiency.
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.
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Qiu
authors.initials: Q
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Wenxian
authors.initials: W
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Bingqing
authors.initials: B
authors.lastname: Wang
authors.affiliation: Key Laboratory of Flexible Electronics (KLOFE) &Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
authors.forename: Weina
authors.initials: W
authors.lastname: Zhang
authors.affiliation: Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700S. Cass Ave, Argonne, Illinois 60439, USA.
authors.forename: Xiaoqiao
authors.initials: X
authors.lastname: Zeng
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Cong
authors.initials: C
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Yongji
authors.initials: Y
authors.lastname: Qin
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Sun
authors.affiliation: X-Ray Science Division, Argonne National Laboratory, 9700S. Cass Ave, Argonne, Illinois 60439, USA.
authors.forename: Tianpin
authors.initials: T
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Junfeng
authors.initials: J
authors.lastname: Liu
authors.affiliation: Key Laboratory of Flexible Electronics (KLOFE) &Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, China.
authors.forename: Fengwei
authors.initials: F
authors.lastname: Huo
authors.affiliation: Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700S. Cass Ave, Argonne, Illinois 60439, USA.
authors.forename: Jun
authors.identifier: 0000-0003-0858-8577
authors.initials: J
authors.lastname: Lu