MOF材料PPT课件

1、1MOFs材料简介20世纪90年代中期，第一代MOFs材料被合成出来孔径和稳定性受到一定限制1999年，Yaghi等人合成具有三维开放骨架结构的MOF-5去除孔道中的客体分子后仍然保持骨架完整2002年，Yaghi科研组合成IRMOF系列材料实现MOF材料从微孔到介孔的成功过渡2008年，Yaghi研究组合成出上百种ZIF系列类分子筛材料金属离子有机配体配位自组装周期性网状骨架的多孔材料第1页/共21页催化剂气体储存吸附分离含氮杂环含羧基含氮杂环与羧基分层、扩散法水热法搅拌合成法多孔性大比表面积结构的多样性MOFs合成方法特点应用分类第2页/共21页Eddaoudi, M. Kim, J. R

2、osi, N. Vodak, D. OKeeffe, M. Yaghi, O. M. science 295, 469-472 (2002) The choice of metal ions and organic ligand can dictate the framework topology (affecting pore and shape) and influence the overall chemical functionality of the framework.第3页/共21页第4页/共21页Kyo Sung Park, Zheng Ni, Adrien P. PNAS 2

3、006;103;10186-10191第5页/共21页IRMOF-3 (Isoreticular MetalOrganic Framework-3) is one such MOF, which contains amine groups lining the pores of the framework.Generic scheme for the preparation of a functionalized MOF by using direct solvothermal synthesis .第6页/共21页M. Eddaoudi, J. Kim, N. Rosi, D. Vodak,

4、 J. Wachter,M. OKeeffe and O. M. Yaghi, Science, 2002, 295, 469472.第7页/共21页Organic ligands (linkers, left), scaffold representation (middle), and lattice structure (from X-ray data, right)第8页/共21页A generic scheme for the postsynthetic modification (PSM) of MOFs (top). A specific example of PSM on IR

5、MOF-3 with benzoic anhydride (bottom).第9页/共21页第10页/共21页New PSM reactions第11页/共21页第12页/共21页Increasing and controlling functionality via PSM1.How many different functional groups can be incorporated into a MOF2.How the spatial localization can be controlledS. J. Garibay, Z. Wang, K. K. Tanabe and S. M

6、. Cohen, ., 2009, 48, 73417349.第13页/共21页第14页/共21页T. Gadzikwa, O. K. Farha, C. D. Malliakas, M. G. Kanatzidis, J. T. Hupp and S. T. Nguyen, J. Am. Chem. Soc., 2009, 131,1361313615.By taking advantage of solvent molecules trapped within the framework, the ability to distinguish the exterior and interi

7、or of the MOF was achieved.第15页/共21页16Metals and coordinate covalent modification via PSMK. Oisaki, Q. Li, H. Furukawa, A. U. Czaja and O. M. Yaghi,J. Am. Chem. Soc., 2010, 132, 92629264.第16页/共21页In this strategy, the MOF is appended with a chelating group and metallated afterwards.第17页/共21页18Improv

8、ing and modulating gas sorption via PSMZ. Wang, K. K. Tanabe and S. M. Cohen, Chem.Eur. J., 2010, 16,212217.第18页/共21页MOF catalysts via PSMCoordinate covalent modification of MIL-101(Cr) with chiral proline ligands. Coordinate covalent modification of MIL-101(Cr) at vacant metal sites of the SBUs. Chira