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美国西北大学、阿贡国家实验室SonBinh T. Nguyen教授学术报告
阅读次数:116 添加时间:2018/6/21 发布: 管理员


报告人:SonBinh T. Nguyen

Metal-organic frameworks (MOFs) as a general platform for the deployment of catalysis

Abstract:This presentation will discuss the efforts by our research groups at Northwestern University and Argonne National Laboratory in exploitingmetal-organic frameworks (MOFs) as platforms for deploying catalysis.

As hybrid materials derived from well-defined molecular building blocks, newly emerged porous materials such as MOFs are natural solid-state 3-D versions of supramolecules.  These materials have many of the desirable features of zeolites, such as high surface area and porosity, and can be similarly effective in size- and shape-selective catalysis.[1]  However, given the enormous diversity of potential structures and chemical functional groups that can be incorporated into the pores of MOFs, these porous materials have the potential to extend catalysis far beyond the realm of zeolitic chemistry to include enzyme-like behaviors such as adapted flexibility during catalysis, substrate pre-concentration effects, active-site isolation and protection, and tunable hydrophobicity.[2]For example, recent developments in MOF synthesis have given rise to catalytically active materials with unprecedentedstability[3]and novel combinations of activities[4]that were not observed in solution.  In addition, a combination of synthetic modulation[5]and post-synthesis modification has allowed us to modulate the nodes of MOFs to tune catalytic activities in the oxidation of sulfides and sulfoxides.

Figure 1.  Top:  An illustration of how a MOF microcrystal can be used for a tandem H2O2-gneration, epoxidation catalysis sequence.  Bottom:  “Open” sites on the UiO-66 Zr6-oxo-hydroxo cluster node are converted to catalytically active Zr-hydroperoxy species and complexes with solvent/substrate molecule.

[1]     a) “Metal organic framework materials as catalysts”  Lee, J. Y.; Farha, O. K.; Roberts, J.; Scheidt, K. A.; Nguyen, S. T.; Hupp, J. T. Chem. Soc. Rev.2009,38, 1450-1459.  b) “Porous organic polymers (POPs) in catalysis:  opportunities and challenges”  Kaur, P.; Hupp, J. T.; Nguyen, S. T. ACS Catal.2011,1, 819-835. 

[2]      a) “A catalytically active, permanently microporous MOF with metalloporphyrin struts”  Schultz, A. M.; Farha, O. K.;Hupp, J. T.;Nguyen, S. T. J. Am. Chem. Soc.2009,131(12), 4204-4205.  b) “A metal-organicframework material thatfunctions as an enantioselective catalyst for olefin epoxidation”  Cho, S.-H.; Ma, B.; Albretch-Schmidt, T. A.;Nguyen, S. T.;Hupp, J. T.Chem Commun.2006, 2563-2565.  c) “Selective bifunctional modification of a non-catenated metal-organicframework material via “click” chemistry”  Gadzikwa, T.; Farha, O. K.; Malliakas, C. D.; Kanatzidis, M. G.;Hupp, J. T.;Nguyen, S. T. J. Am. Chem. Soc.2009,131(38), 13613-13615.  d) “Covalentsurfacemodification of a metal-organicframework:  Selectivesurfaceengineering via CuI-catalyzed Huisgencycloadditions”. Gadzikwa, T.; Lu, G.; Stern, C. L.; Wilson, S. R.;Hupp, J. T.;Nguyen, S. T. Chem. Commun.2008, 5493-5495.  e) “Simple and compelling biomimetic metal–organic framework catalyst for the degradation of nerve agent simulants.” Katz, M. J.; Mondloch, J. E.; Totten, R. K.; Park, J. K.; Nguyen, S. T.; Farha, O. K.; Hupp, J. T.,Angew. Chem., Int. Ed.2014,53, 497-501.

[3]      a) “Vanadium-node-functionalized UiO-66: a thermally stable MOF-supported catalyst for the gas-phase oxidative dehydrogenation of cyclohexene” Nguyen, H. G. T.; Schweitzer, N. M.; Chang, C.-Y.; Drake, T. L.; So, M. C.; Stair, P. C.; Farha, O. K.; Hupp, J. T.; Nguyen, S. T.ACS Catal.2014,4, 2496-2500.  b) "Comparative study of titanium-functionalized UiO-66: Support effect on the oxidation of cyclohexene using hydrogen peroxide" Nguyen, H. G. T.; Mao, L.; Peters, A. W.; Audu, C. O.; Brown, Z. J.; Farha, O. K.; Hupp, J. T.; Nguyen, S. T. Catal. Sci. Technol.2015,5, 4444-4451. 

[4]      a) "Coupling Molecular and Nanoparticle Catalysts on Single Metal–Organic Framework Microcrystals for the Tandem Reaction of H2O2Generation and Selective Alkene Oxidation" Limvorapitux, R.; Chou, L.-Y.; Young, A. P.; Tsung, C.-K.; Nguyen, S. T.,ACS Catal.2017,7, 6691-6698.  b) "Gas-phase dimerization of ethylene under mild conditions catalyzed by MOF materials containing (bpy)NiIIcomplexes" Madrahimov, S. T.; Gallagher, J. R.; Zhang, G.; Meinhart, Z.; Garibay, S. J.; Delferro, M.; Miller, J. T.; Farha, O. K.; Hupp, J. T.; Nguyen, S. T. ACS Catal.2015,5, 6713-6718. 

Biography:SonBinh T. Nguyen received a doctoral degree in Chemistry under the directions of Profs. Robert Grubbs and Nathan Lewis at Caltech, where he was an NSF and an NDSEG predoctoral fellow.  After an NSF postdoctoral fellowship with Prof. K. Barry Sharpless at Scripps, SonBinh began his independent career at Northwestern in 1996, where he is now a Professor of Chemistry.  He is also a Senior Fellow in the technical staff at Argonne National Laboratory.  At Northwestern, he has held the Dow Research Professorship, the highly prestigious McCormick Professorship of Teaching Excellence and the Directorship of the Integrated Science Program. 

SonBinh’s research was recognized with a PECASE (Presidential Early Career Award in Science and Engineering) Award, a National Science Foundation CAREER Award, as well as young investigator awards from the Dreyfus Foundation, the Beckman Foundation, and the Packard Foundation.  The Union Carbide Corporation gave him its 1999 Innovation Recognition Award, making him one of the youngest recipients of this award.  Nguyen was selected as an Alfred P. Sloan Fellow in 2000 and appointed to our Dow Research Professorship in 2004.  In 2008, his work was recognized by an Outstanding Research Achievement award from the Defense Threat Reduction Agency (DTRA).  His research has been continuously supported by several DoD agencies such as the AFOSR, the ARO, and DTRA. 

SonBinh has coauthored over 250 manuscripts, held over 30 patents, and is the recipient of many awards.  His expertise is in the broad areas of catalysis, chemical synthesis, soft material synthesis, and biologically inspired materials chemistry.  He has made seminal contributions in the catalytic synthesis of living polymers; the synthesis and applications of nanocomposites of graphene and graphene oxide; supramolecular chemistry as applied to catalysis and assembly; targeted drug delivery; and the synthesis and application of porous materials such as metal-organic framworks (MOFs) and porous organic polymers (POPs).  Between 2014 and 2017, he was annually named a Highly Cited Researcher by Thompson-Reuters (now Clarivate Analytics).  He also was recently named one of 300 researchers (ranked by the total citations of their papers) in the field of materials science and engineering (MSE) by MSESupplies.com based on Elsevier Scopus data. 

Professional Experiences:

Asst., Assoc., Full Professor of Chemistry, Northwestern University, USA                  1996-present

Senior Fellow in the CSE division of Argonne National Laboratory           2009-present

Member of the Northwestern Center for Catalysis and Surface Science  2001-present

Member of the Northwestern International Institute for Nanotechnology  2001-present

Member of the Northwestern Institute for BioNanotechnology in Medicine        2001-present

Member of the Northwestern Robert H. Lurie Comprehensive Cancer Center  2001-present

Member of the Northwestern Materials Research Center       1999-present

Member of the Northwestern Institute of Catalysis in Energy Processes  1998-present

McCormick Professor of Teaching Excellence, Northwestern University, USA           2005-2008

Dow Research Professor, Northwestern University, USA                                  2004-2006

Director, Integrated Science Program, Northwestern University,                       2003-2014

Research Interests:

Catalysis:  development of new catalysts for organic synthesis and polymer synthesis, especially those that involve asymmetric catalytic systems.  Exploration of catalytic processes involving artificial enzymes, solid state catalysts (MOF, POP, supported oxide), and multiple-phase systems.  Defining mechanisms of catalytic reactions.

Abiotic materials chemistry:  synthesis of polymer systems with novel properties (biological activity, optical activity, conductivity, redox-activity, etc.).  Materials for separation.  Graphene, graphene oxide, carbon nanotubes and their nanocomposites.  Energy-storage materials.

Biomaterials chemistry:  Synthesis of polymer-biopolymer and inorganic/organic hybrid materials.  Interactions of polymers and biopolymer with surfaces.  Drug delivery and diagnostics.

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