Metal–Organic Framework for Emulsifying Carbon Dioxide and Water |
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| Authors: | Chengcheng Liu Prof Jianling Zhang Dr Lirong Zheng Prof Jing Zhang Xinxin Sang Xinchen Kang Bingxing Zhang Tian Luo Xiuniang Tan Prof Buxing Han |
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| Institution: | 1. Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, China;2. Beijing Synchrotron Radiation Facility (BSRF), Institute of High Energy Physics, Chinese Academy of Sciences, China |
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| Abstract: | 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. |
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| Keywords: | CO2 emulsions H2O metal– organic frameworks superstructures |
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