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Title: Novel in-capsule synthesis of metal–organic framework for innovative carbon dioxide capture system

Journal Article · · Green Energy & Environment

Metal-Organic Frameworks (MOFs) have been developed as solid sorbents for CO2 capture applications and their properties can be controlled by tuning the chemical blocks of their crystalline units. A number of MOFs (e.g., HKUST-1) have been developed but the question remains how to deploy them for gas–solid contact. Unfortunately, the direct use of MOFs as nanocrystals would lead to serious problems and risks. Here, for the first time, we report a novel MOF-based hybrid sorbent that is produced via an innovative in-situ microencapsulated synthesis. Using a custom-made double capillary microfluidic assembly, double emulsions of the MOF precursor solutions and UV-curable silicone shell fluid are produced. Subsequently, HKUST-1 MOF is successfully synthesized within the droplets enclosed in the gas permeable microcapsules. The developed MOF-bearing microcapsules uniquely allow the deployment of functional nanocrystals without the challenge of handling ultrafine particles, and further, can selectively reject undesired compounds to protect encapsulated MOFs.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Chicago, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC)
Grant/Contract Number:
AC02-06CH11357; FG02-94ER14466
OSTI ID:
2419434
Journal Information:
Green Energy & Environment, Journal Name: Green Energy & Environment Journal Issue: 3 Vol. 8; ISSN 2468-0257
Publisher:
Elsevier - Institute of Process Engineering, Chinese Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

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Extremely enhanced CO2 uptake by HKUST-1 metal–organic framework via a simple chemical treatment journal January 2014
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Toward Sustainable Energy and Materials: CO 2 Capture Using Microencapsulated Sorbents journal April 2020
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