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Title: Construction of hierarchically porous metal–organic frameworks through linker labilization

One major goal of metal–organic framework (MOF) research is the expansion of pore size and volume. Although many approaches have been attempted to increase the pore size of MOF materials, it is still a challenge to construct MOFs with precisely customized pore apertures for specific applications. W present a new method, namely linker labilization, to increase the MOF porosity and pore size, giving rise to hierarchical-pore architectures. Microporous MOFs with robust metal nodes and pro-labile linkers were initially synthesized. The mesopores were subsequently created as crystal defects through the splitting of a pro-labile-linker and the removal of the linker fragments by acid treatment. We also demonstrate that linker labilization method can create controllable hierarchical porous structures in stable MOFs, which facilitates the diffusion and adsorption process of guest molecules to improve the performances of MOFs in adsorption and catalysis.
Authors:
 [1] ;  [1] ;  [2] ;  [1] ; ORCiD logo [3] ;  [1] ;  [1] ;  [1] ;  [4] ;  [5] ; ORCiD logo [6]
  1. Texas A & M Univ., College Station, TX (United States). Dept. of Chemistry
  2. Texas A & M Univ., College Station, TX (United States). Dept. of Chemistry; King Saud Univ., Riyadh (Saudi Arabia). Chemistry Dept.
  3. Texas A & M Univ., College Station, TX (United States). Dept. of Materials Science and Engineering
  4. King Saud Univ., Riyadh (Saudi Arabia). Chemistry Dept.
  5. Texas A & M Univ., College Station, TX (United States). Dept. of Materials Science and Engineering, Artie McFerrin Dept. of Chemical Engineering
  6. Texas A & M Univ., College Station, TX (United States). Dept. of Chemistry, Dept. of Materials Science and Engineering; King Saud Univ., Riyadh (Saudi Arabia). Chemistry Dept.
Publication Date:
Grant/Contract Number:
SC0001015; FE0026472
Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 8; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Research Org:
Univ. of California, Berkeley, CA (United States); Texas A & M Univ., College Station, TX (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; metal-organic frameworks; solid-state chemistry
OSTI Identifier:
1389292