[0053] 实施例1和对比例1制备的Mg‑MOF‑74材料的O1s精细XPS图谱分别如图5和图6所 示,由图5和图6可知,Mg‑O键的比例大幅度提升,这可能是由于配体缺失,提供了更多的吸 附位点,吸附了更多的水分子或者羟基,所以镁氧键比例大幅度提升,从而配体中含有的C‑ 2+ O键和‑O‑C=O键比例相对减少。并且...
Postsynthetic functionalization of magnesium 2,5-dihydroxyterephthalate (Mg-MOF-74) with tetraethylenepentamine (TEPA) resulted in improved CO2 adsorption performance under dry and humid conditions. XPS, elemental analysis, and neutron powder diffraction studies indicated that TEPA was incorporated through...
(2) conditions,which was 10.2% and 18.02% higher than that of Mg-MOF-74 respectively.Combining XPS,SEM and N_(2) adsorption-desorption characterization analysis,it was attributed to the effect of the more stable unsaturated metal sites Ni into the Mg-MOF-74 on the pore structure and the ...
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(A)FeTCPP⊂UiO-66合成程序的示意图。(B)FeTCPP⊂UiO-66的SEM图像。(C)FeTCPP⊂UiO-66的TEM图像。(D)FeTCPP⊂UiO-66的XRD模式。(E)FeTCPP和FeTCPP⊂UiO-66的FTIR光谱。(F,G)FeTCPP⊂UiO-66的(F)Fe 2p和(G)Zr 3d的高分辨率XPS光...