Chromium-based metal–organic framework/mesoporous carbon composite: synthesis, characterization and CO2 adsorption

New composites of a water-stable chromium-based metal organic framework MIL-101 and mesoporous carbon CMK-3 were in situ synthesized with different ratios of MIL-101 and CMK-3 using the hydrothermal method. The composites as well as the parent materials were characterized by X-ray diffraction, therm...

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Bibliographic Details
Published in:Adsorption : journal of the International Adsorption Society 2015-02, Vol.21 (1-2), p.77-86
Main Authors: Zhang, Zhongzheng, Wang, Hui, Chen, Xinqing, Zhu, Chenming, Wei, Wei, Sun, Yuhan
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Engineering Thermodynamics
Heat and Mass Transfer
Industrial Chemistry/Chemical Engineering
Surfaces and Interfaces
Thin Films
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Summary:New composites of a water-stable chromium-based metal organic framework MIL-101 and mesoporous carbon CMK-3 were in situ synthesized with different ratios of MIL-101 and CMK-3 using the hydrothermal method. The composites as well as the parent materials were characterized by X-ray diffraction, thermo gravimetric analysis, scanning electron microscope, transmission electron microscope and nitrogen/carbon dioxide adsorption isotherms. The hybrid material possesses the same crystal structure and morphology as its parent MIL-101, and exhibits an enhancement in CO 2 adsorption uptakes when compared to MIL-101 and CMK-3. The increase in CO 2 uptakes was attributed to the combined effect of the formation of additional micropores, the enhancement of micropore volume and the activation of unsaturated metal sites by CMK-3 incorporation.
ISSN:0929-5607
1572-8757
DOI:10.1007/s10450-015-9651-2