NDLI: A versatile synthesis of metal–organic framework-derived porous carbons for CO<sub>2</sub> capture and gas separation

Content Provider	Royal Society of Chemistry (RSC)
Author	Krishna, Rajamani Yang, Jiangfeng Yang, Ting Wang, Jun Deng, Shuguang
Copyright Year	2016
Abstract	We report a versatile fabrication method, detailed material characterization, pore architecture formation patterns, and surface functionality of MIL-100Al-derived porous carbons. Oxygen-doped porous carbons were prepared via carbonization of MIL-100Al, MIL-100Al/F127 composite, and MIL-100Al/KOH mixture. Microscopy tools showed different Al2O3 composite patterns and morphologies in the carbon particles, and a coherent discussion of versatile fabrication methods on carbon textural properties is demonstrated. The obtained porous carbons have a large specific surface area (up to 1097 m2 g−1), well-developed narrow microporosity (up to 92% of the pore volume arises from micropores), and excellent CO2 adsorption capacities of 6.5 mmol g−1 at 273 K and 4.8 mmol g−1 at 298 K at an ambient pressure, which is among the highest reported so far for the MOF-derived carbons. Furthermore, excellent CO2/N2 selectivity of 45, CO2/CH4 selectivity of 14.5, and CH4/N2 selectivity of 5.1 were achieved at 298 K and 1 bar. Kinetic selectivity was also calculated, in which high CH4/N2 selectivity (up to 11) was reached at 273 K and 1 bar. Potent gas separation performance and outstanding regenerability, demonstrated by breakthrough simulation and adsorption–desorption cycling tests, enable these MOF derived porous carbons to function as suitable solid adsorbents for CO2 capture from flue gas and bio-gas upgradation.
Starting Page	19095
Ending Page	19106
Page Count	12
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	4
Issue Number	48
Journal	Journal of Materials Chemistry A
DOI	10.1039/c6ta07330a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Carbonization Carbon Specific surface area Adsorption Gas separation Flue gas
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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