Invited SpeakersProfile Details

Prof. Nathaniel L. Rosi
Prof. Nathaniel L. Rosi University of Pittsburgh, USA

Biography

Prof. Rosi earned his B.A. in chemistry from Grinnell College (1999) and his PhD in Chemistry from the University of Michigan (2003).  After completing postdoctoral studies at Northwestern University, he began his independent career at the University of Pittsburgh in 2006, where he is now a Professor of Chemistry.  His research group focuses on the development of methods for controlling the hierarchical structure of MOFs and methods for directing the assembly of nanoparticles into ordered superstructures.

All sessions by Prof. Nathaniel L. Rosi

  • Day 1Monday, February 20th
Session 2: Advanced Porous Functional Materials/Modeling I
3:00 pm

Porosity Gradients in MOFs

Natural and engineered systems often use functional or structural gradients to control the directional transport of matter. Gradients within MOFs would allow for selective and directional transport of specific analytes to specific regions of a MOF crystal. A ligand exchange process has been implemented to systematically tune the pore space within a class of 3-D mesoporous metal-organic frameworks (MOFs). The mechanism of ligand exchange is investigated and revealed to proceed from the crystal periphery to the crystal core within single MOF crystals. Upon halting the ligand exchange reaction at different time points, new single crystalline mesoporous MOFs bearing a porosity gradient have been realized, in which the pore dimensions gradually decrease when proceeding from the crystal periphery to the core. These methods point toward the construction of functionality gradients that can be used to shuttle molecules to specific locations within the crystal.

Level 0, between bld. 4 and 5 15:00 - 15:30 Details