Reversible flexible structural changes in multidimensional MOFs by guest molecules (I2, NH3) and thermal stimulation

Reversible flexible structural changes in multidimensional MOFs by guest molecules (I2, NH3) and thermal stimulation
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客体分子(I2、NH3)和热刺激引起的多维 MOF 的可逆柔性结构变化

DOI:
10.1016/j.jssc.2015.02.014
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发表时间:
2015-03-01
影响因子:
3.3
通讯作者:
Li, Jinping
Li, Jinping
中科院分区:
化学3区
文献类型:
--
作者:
Chen, Yang;Li, Libo;Li, Jinping

文献摘要

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合成了3种金属有机骨架(MOFs),分别为[Cu(INA)(2)]、[Cu(INA)(2)I-2]和[Cu(INA)(2)(H2O)(2)(NH3)(2)],它们分别具有3D、2D和OD结构。报道了这些MOFs的可逆柔性结构变化。通过12的高温(60-100 ℃)刺激或NH3的环境温度刺激,[Cu(INA)(2)](3D)转化为[Cu(INA)212](2D)和[Cu(INA)(2)(H2O)(2)(NH3)(2)](OD);随着温度升高到150 ℃,MOF变回其原始形式。通过这种方式,这种3D MOF在从污染的水和空气中捕获I-2和NH3方面具有潜在的应用。采用XRD、TGA、SEM、NH3-TPD和气体吸附测试等手段对合成过程中的结构、形貌和性能变化进行了表征。(C)2015 Elsevier Inc. All rights reserved.
Three metal-organic frameworks (MOFs), [Cu(INA)(2)], [Cu(INA)(2)I-2] and [Cu(INA)(2)(H2O)(2)(NH3)(2)], were synthesized with 3D, 2D, and OD structures, respectively. Reversible flexible structural changes of these MOFs were reported. Through high temperature (60-100 degrees C) stimulation of 12 or ambient temperature stimulation of NH3, [Cu(INA)(2)] (3D) converted to [Cu(INA)212] (2D) and [Cu(INA)(2)(H2O)(2)(NH3)(2)] (OD); as the temperature increased to 150 degrees C, the MOFs changed back to their original form. In this way, this 3D MOF has potential application in the capture of I-2 and NH3 from polluted water and air. XRD, TGA, SEM, NH3-TPD, and the measurement of gas adsorption were used to describe the changes in processes regarding the structure, morphology, and properties. (C) 2015 Elsevier Inc. All rights reserved.