TY - JOUR
T1 - A versatile synthesis of metal-organic framework-derived porous carbons for CO2 capture and gas separation
AU - Wang, Jun
AU - Yang, Jiangfeng
AU - Krishna, Rajamani
AU - Yang, Ting
AU - Deng, Shuguang
N1 - Funding Information:
This work was partially supported by Nanchang University, China and Arizona State University, USA (S. Deng). We gratefully acknowledge the use of facilities within the LeRoy Center for Solid State Science and Gold Water Environmental Laboratory and Prof. Jerry Lin's group at Arizona State University. We would like to acknowledge the kind help from Prof. Jerry Lin's group members, Han-Chun Wu and Joshua James. J. Yang acknowledges Taiyuan University of Technology for supporting his visit to the USA.
Publisher Copyright:
© The Royal Society of Chemistry.
PY - 2016
Y1 - 2016
N2 - 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.
AB - 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.
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U2 - 10.1039/c6ta07330a
DO - 10.1039/c6ta07330a
M3 - Article
AN - SCOPUS:85002626928
SN - 2050-7488
VL - 4
SP - 19095
EP - 19106
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 48
ER -