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A thermally derived and optimized structure from ZIF-8 with giant enhancement in CO2 uptake
被引:246
|作者:
Gadipelli, Srinivas
[1
]
Travis, Will
[1
]
Zhou, Wei
[2
,3
]
Guo, Zhengxiao
[1
]
机构:
[1] UCL, Dept Chem, London WC1H 0AJ, England
[2] NIST, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA
[3] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA
关键词:
METAL-ORGANIC FRAMEWORKS;
ZEOLITIC-IMIDAZOLATE-FRAMEWORK;
HIERARCHICALLY POROUS CARBON;
HIGH-SURFACE-AREA;
HIGH-PRESSURE;
DIRECT CARBONIZATION;
REACTIVE ADSORPTION;
NANOPOROUS CARBONS;
HYDROGEN STORAGE;
GAS-ADSORPTION;
D O I:
10.1039/c4ee01009d
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
We report a new, simple and versatile method to obtain highly active MOF structures by carefully controlled post-synthesis thermal annealing. The active ZIF-8 structure shows highly enhanced CO2/N-2 selectivity and a stable cyclic CO2 uptake of >= 1.5mmol g(-1) at 1 bar and 25 degrees C with a heat of adsorption of >= 30 kJ mol(-1), which is over 100% greater than approximate to 0.7 mmol g(-1) and approximate to 17 kJ mol(-1), respectively of ZIF-8.
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页码:2232 / 2238
页数:7
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