Storage and sorption properties of acetylene in jungle-gym-like open frameworks
Storage and sorption properties of acetylene in jungle-gym-like open frameworks
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DOI：
10.1002/asia.200800112
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发表时间：
2008-01-01
影响因子：
4.1
通讯作者：
Kitagawa, Susumu
中科院分区：
文献类型：
--
作者：
Tanaka, Daisuke;Higuchi, Masakazu;Kitagawa, Susumu
研究了六种多孔配位聚合物[M-2（L）（2）（dabco）]（n）对乙炔的吸附性能（dabco = 1，4-二氮杂双环[2.2.2]辛烷，M = Cu 2+（1），Zn 2+（2），L = 1，4-苯二甲酸酯（BDC; 1a，2a）、1，4-萘二甲酸（NDC; 1b，2b）、9，10-蒽二甲酸（NDC; 1c，2c））。在195 K下测得的乙炔吸附等温线的1和2是I型，并显示出在低相对压力下急剧增加。还研究了在195 K下CO2的吸附性能。化合物1和2在乙炔吸附等温线之间显示出大的起始压力差异，尽管二氧化碳吸附等温线之间的差异不是那么显著。特别是，2c显示出显着的亲和力乙炔。298 K时的乙炔吸附等温线表明，2c和2b在298 K，1 atm时的吸附量（分别为101和106 mL g（-1））高于其他常规多孔材料。值得注意的是，在化合物1和2中，多孔晶体2c对乙炔的亲和性最高。
The acetylene-sorption properties of six porous coordination polymers (PCPs), [M-2(L)(2)(dabco)](n) (dabco = 1,4-diazabicyclo[2.2.2]octane, M = Cu2+ (1), Zn2+ (2), L = 1,4-benzenedicarboxylate (bdc; 1a, 2a), 1,4-naphthalenedicarboxylate (ndc; 1b, 2b), 9,10-anthracenedicarboxylate (adc; 1c, 2c)), were investigated. The acetylene sorption isotherms of 1 and 2 measured at 195 K are of type I and show a steep increase at low relative pressures. The sorption properties of carbon dioxide at 195 K were also investigated. Compounds 1 and 2 showed a large difference in onset pressure between acetylene sorption isotherms, although the difference between the carbon dioxide sorption isotherms is not so significant. In particular, 2c displayed a remarkable affinity for acetylene. The acetylene sorption isotherm at 298 K showed that the adsorption amounts for 2c and 2b at 298 K, 1 atm (101 and 106 mL g(-1), respectively) were higher than those of other conventional porous materials. Notably, of the compounds 1 and 2, the porous crystals 2c had the highest affinity for acetylene.