1、2018/7/6,1,纳米材料的应用,报告人： 吕曼丽指导教师：宋丽娟教授报告时间：2017.6.21,2018/7/6,2,2018/7/6,3,研究背景,2018/7/6,4,Figure 4. (d) Sketch of the gate switching mechanism with a space-filling model of a pore window of UiO-67 and AZB in the cis conformation on the left and the trans conformation on the right. Oxygens are colore
2、d red, nitrogens green, carbons of the MOF gray, carbons of the AZB orange, and zirconiums blue. Hydrogen atoms are hidden.,2018/7/6,5,Figure 1. UiO-67 layer investigated by (a) XRD, (b) SEM, and (c) EDX mapping. The crystal structure of UiO-67 is shown in panel (d). The UiO-67 layer is very thin (2
3、00 nm), as shown in panel (c), so that XRD gives only low reflex intensities. XRD shows strong support reflexes that are denoted with asterisks in panel (a). However, the reflexes could be identified as UiO-67. Permeances for the neat UiO-67 layer without AZB loading are given as follows. The single
4、-gas permeances and ideal permselectivities (in a hypothetical mixture with H2) are shown in panels (e) and (f), respectively. The mixed-gas permeances and real permselectivities for H2-containing mixtures are given in panel (g).,次级结构单元Zr6O4(OH)412+,膜的合成与表征,应用：,2018/7/6,6,2018/7/6,7,一、通过模板牺牲法对MOF晶体内
5、的MNPs进行空间定位,Fig.1 Through surface modification with surfactant PVP, MNPs of various sizes, shapes and compositions are loaded on the surface of metal oxide, and by reacting the metal oxide/MNPs template with organicligands, MNPs can be encapsulated in MOF crystals. The spatial distribution of incorporated MNPs within MOF crystals can be controlled by tuning thecrystallization behaviour of MOFs under (a) high and (b) low concentration of the organic ligands.,
