4.7 Article

Defect-induced ripening of zeolitic-imidazolate framework ZIF-8 and its implication to vapor-phase membrane synthesis

Journal

CHEMICAL COMMUNICATIONS
Volume 52, Issue 78, Pages 11669-11672

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc05433a

Keywords

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Funding

  1. National Science Foundation [CBET-1510530, DBI-0116835]
  2. Qatar National Research Fund [NPRP 7-042-2-021]
  3. R&D Convergence Program of MSIP (Ministry of Science)
  4. NST (National Research Council of Science & Technology) of the Republic of Korea [CRC-14-1-KRICT]
  5. VP for Research Office
  6. Texas A&M Engineering Experimental Station
  7. Div Of Chem, Bioeng, Env, & Transp Sys
  8. Directorate For Engineering [1510530] Funding Source: National Science Foundation

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We report for the first time that ZIF-8 crystals undergo an Ostwald-ripening-like process without degradation in the presence of a ligand vapor. The ripening process is dependent on the defect density of the crystals: the more defective the more amenable to the ripening. The process was adapted to synthesize ultra-thin ZIF-8 membranes by vapor-phase secondary growth.

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