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DTSTART;TZID="Pacific Time (US & Canada)":20231103T150000
DTEND;TZID="Pacific Time (US & Canada)":20231103T160000
SUMMARY:AER/I Chemistry Seminar
LOCATION:Fulmer Hall
DESCRIPTION:Title: Defect-engineered UiO-66 Metal–Organic Framework​\n\nSpeaker: Jinglei Wang\n\nGroup: Prof. Jack Zhang\n\nAbstract:\n\nMetal–organic frameworks (MOFs) are polymeric porous materials consisting of metal nodes and organic ligands that extend to form periodic crystal structures. They have ultrahigh porosity (up to 90% free volume) and enormous internal surface areas (extending beyond 6000 m2/g). These properties, together with the extraordinary degree of tunability for both the metal centers and the organic ligands, make MOFs of great interest for broad applications in gas storage, high-capacity adsorbents, membranes, thin-film devices, catalysis, and biomedical imaging [1]. However, the “ideal crystals” limit the pore sizes, the exposure of catalytic sites, the diffusion and accessibility of large molecules. ​​​Defect engineering introduce missing linker and missing node defects into MOFs is an exciting concept for tailoring material properties, which opens up great opportunities not only in sorption and catalysis, but also in controlling challenging physical characteristics such as band gap, magnetic and electrical/conductive properties [2]. In this talk, I will demonstrate MOFs and defect-engineering in Zr-MOFs with typical defect-creating methods. Three papers related to the synthesis and application of defect-engineered UiO-66 will be discussed.\n\n[1] H, Zhou, et al. "Introduction to metal–organic frameworks." Chem. Rev. 2012, 112, 2, 673-674.\n\n[2] Z. Fang, et al. "Defect‐engineered metal–organic frameworks." Angew. Chem. Int. Ed. 2015, 54, 25 7234-7254.
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