A thermally derived and optimized structure from ZIF-8 with giant enhancement in CO2 uptake

被引：247
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
来源：
ENERGY & ENVIRONMENTAL SCIENCE | 2014年 / 7卷 / 07期
基金：
英国工程与自然科学研究理事会;
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.
引用
收藏
页码：2232 / 2238
页数：7
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