Characterization of hydrogen/deuterium adsorption sites in nanoporous Cu―BTC by low-temperature thermal-desorption mass spectroscopy
Characterization of hydrogen/deuterium adsorption sites in nanoporous Cu―BTC by low-temperature thermal-desorption mass spectroscopy
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低温热解吸质谱表征纳米孔 Cu―BTC 中氢/氘吸附位点
DOI：
10.1016/j.micromeso.2011.01.023
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发表时间：
2011
影响因子：
5.2
通讯作者：
M. Hirscher
中科院分区：
文献类型：
--
作者：
Ivana Krkljuš;M. Hirscher
采用低温热解吸光谱法研究了铜（II）苯-1,3,5-三羧酸盐- Cu-BTC晶体中氢和氘的吸附位点。当Cu-BTC的最大负载为每细胞218个d2分子时，观察到三个脱附最大值。最大值可以通过中断解吸或部分加载来分离。通过与文献中的中子衍射研究进行比较，可以将最大值分配给三个不同的吸附位点，即配位不饱和Cu2+位点，四面体侧袋和大孔隙。
Hydrogen and deuterium adsorption sites in the crystalline MOF copper(II) benzene-1,3,5-tricarboxylate, Cu–BTC were studied by low-temperature thermal desorption spectroscopy. For a maximum loading of 218 D2molecules per unit cell of Cu–BTC three desorption maxima were observed. The maxima could be separated by either interrupted desorption or partial loading. By comparing to neutron diffraction studies from the literature the maxima could be assigned to three different adsorption sites, i.e. coordinatively-unsaturated Cu2+sites, tetrahedral side pockets and the large pores.