Metal-Organic Framework for Emulsifying Carbon Dioxide and Water

Forming emulsions of carbon dioxide (CO2) and water can largely expand the utility of CO2. Herein we propose for the first time the utilization of a metal–organic framework (MOF) for emulsifying CO2 and water. Owing to the hybrid composition, MOF particles can easily assemble at the CO2/water interf...

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Bibliographic Details
Published in:Angewandte Chemie 2016-09, Vol.128 (38), p.11544-11548
Main Authors: Liu, Chengcheng, Zhang, Jianling, Zheng, Lirong, Zhang, Jing, Sang, Xinxin, Kang, Xinchen, Zhang, Bingxing, Luo, Tian, Tan, Xiuniang, Han, Buxing
Format: Article
Language:English
Subjects:
Aquatic plants
Carbon dioxide
Chemistry
CO2
Dispersion
Droplets
Emulsification
Emulsionen
Emulsions
Forming
H2O
Metal-organic frameworks
Metall-organische Gerüste
Metals
Mud-water interfaces
Networks
Particulates
Pollutants
Routing (telecommunications)
Solids
Stability
Superstructures
Surfactants
Water utilities
Überstrukturen
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Summary:Forming emulsions of carbon dioxide (CO2) and water can largely expand the utility of CO2. Herein we propose for the first time the utilization of a metal–organic framework (MOF) for emulsifying CO2 and water. Owing to the hybrid composition, MOF particles can easily assemble at the CO2/water interface to create a rigid protective barrier around the dispersed droplet. The MOF‐stabilized CO2 and water emulsion has exceptional stability compared to those emulsions stabilized by surfactants or other solids. Moreover, the CO2 and water emulsion stabilized by MOF is “tunable” due to the designable features of MOFs and adjustable character of CO2. Such a novel kind of emulsion composed of CO2, water, and MOF provides a facile route for constructing MOF superstructures with many advantages. The macroporous networks and hollow capsules of different kinds of MOFs have been successfully derived from CO2 and water emulsions. MOFs als Emulgatoren: Metall‐organische Gerüste (MOFs) wurden zum Emulgieren von CO2 und Wasser eingesetzt. Die MOF‐stabilisierte CO2‐Wasser‐Emulsion ist außergewöhnlich stabil und lässt sich durch Variieren des MOF und der Lösungseigenschaften von CO2 gezielt einstellen. Die Freisetzung von CO2 aus der Emulsion bietet eine einfache Möglichkeit zum Aufbau neuartiger MOF‐Überstrukturen.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.201602150