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

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. 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:
 [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [1] ;  [1] ;  [1] ;  [4] ;  [1] ;  [2] ; ORCiD logo [3]
  1. Beijing Univ. of Chemical Technology (China). State Key Lab. of Chemical Resource Engineering
  2. Nanjing Univ. of Technology (China). Key Lab. of Flexible Electronics (KLOFE), Inst. of Advanced Materials (IAM) and Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Chemical Sciences and Engineering Division
  4. Argonne National Lab. (ANL), Argonne, IL (United States). X-Ray Science Division
Publication Date:
Grant/Contract Number:
AC02-06CH11357; 21271019; 21574065; 21504043; 21604038; Z121103002512023; YS1406; IRT1205; 2014CB932104; 2015CB932200; 21625401; BK20140044; BK20160975
Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 8; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); National Natural Science Foundation of China (NNSFC); Beijing Nova Program; Fundamental Research Funds for the Central Univ. (China); National Basic Research Program of China; Nanjing Tech Univ. (China); Central Committee of the Communist Party of China (CPC)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Metal–organic frameworks; Nanoparticles; Organic–inorganic nanostructures
OSTI Identifier:
1439872