Department Events

Events

  • Oct
    18-6

    ChBE Seminar Series: Student Presentations

    McCormick-Chemical and Biological Engineering

    9:00 AM L211, Technological Institute

    EVENT DETAILS

    Sol Ahn, Notestein/Farha Groups:

    Title
    Solid Acid Catalyzed C-C Bond Isomerization and Disproportionation over Tungstated NU-1000

    Abstract
    Acid-catalyzed skeletal C-C bond isomerizations are important reactions for the petrochemical industries. Hydrocarbons such as hexane and xylene are crucial reactants in the production of fuels and basic petrochemicals, and these have been model reactions that provide structural information on solid acid catalysts. Among those, o-xylene isomerization/disproportionation is a probe reaction for strong Brønsted acid catalysis, and it is also sensitive to the local acid site density and pore structure.

    I will discuss the use of phosphotungstic acid (PTA) encapsulated within a Zr-based metal–organic framework (MOF), NU-1000, as a catalyst for o-xylene isomerization and disproportionation. Extended X-ray absorption fine structure (EXAFS), 31P NMR, N2 physisorption, and powder x-ray diffraction (PXRD) show that the catalyst is stable after the reaction condition. Initial rates over the NU-1000-supported catalyst were comparable to a control WOx-ZrO2, however the NU-1000 supported catalyst was unusually active toward the transmethylation pathway that requires two adjacent active sites in a confined pore, as created when PTA is confined in NU-1000. This work shows the promise of metal–organic framework topologies in giving access to unique activity, even for aggressive reactions such as hydrocarbon isomerization.

    Anyang Peng, Kung Group:

    Title
    Low temperature selective oxidation of ethylbenzene by catalyzed co-oxidation using Co-ZSM-5 and solubilized Au clusters catalysts: extend the reach of heterogeneous catalysis

    Abstract
    Selective oxidation of hydrocarbon using of the ubiquitous molecular O2 as the terminal oxidant is economically attractive but challenging due to the kinetic constraint imposed by the triplet ground state of dioxygen and the inherently inertness of the C-H bonds. One such oxygen driven strategy is co-oxidizing two or more substrates through one-pot cascade reactions in which a kinetically or thermodynamically limited partial oxidation reaction is facilitated by another partial oxidation reaction occurring simultaneously, with the help of multiple heterogeneous catalysts or multi-functional heterogeneous catalysts.
    Throughout its history, heterogeneous catalysis process has been considered to occur by kinetic coupling of elementary steps including adsorption, surface reactions and desorption; nevertheless, this process is often accompanied by formation of reactive intermediates, which can diffuse through the surrounding fluid media and lead to cascade reactions that are beyond the reach of heterogeneous catalysis. Herein we report the Au & Co co-catalyzed co-oxidation of cyclooctene (COE) and ethylbenzene (EB) with molecular O2 to form the useful products of cyclooctene epoxide and acetophenone under mild temperature and ambient pressure. To the best of our knowledge, this is the first example of a unique cascade reaction, in which a sequential reaction was catalyzed by the active intermediate generated from a previous reaction. A better understanding of properties of
energetic reactive intermediates and their contributions to multi-reaction networks would ultimately lead to more efficient use of atoms and energy in chemical transformations

    Register Now

    more less

    TIME Thursday, October 18, 2018 at 9:00 AM - 10:00 AM

    LOCATION L211, Technological Institute    map it

    ADD TO CALENDAR SHARE

    CONTACT Elizabeth Rentfro    elizabeth.rentfro@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Oct
    25-6

    ChBE Seminar Series: Vivek Sharma

    McCormick-Chemical and Biological Engineering

    9:00 AM L211, Technological Institute

    EVENT DETAILS

    TIME Thursday, October 25, 2018 at 9:00 AM - 10:00 AM

    LOCATION L211, Technological Institute    map it

    ADD TO CALENDAR SHARE

    CONTACT Elizabeth Rentfro    elizabeth.rentfro@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Nov
    8-6

    ChBE Seminar Series: Laura Segatori

    McCormick-Chemical and Biological Engineering

    9:00 AM L211, Technological Institute

    EVENT DETAILS

    TIME Thursday, November 8, 2018 at 9:00 AM - 10:00 AM

    LOCATION L211, Technological Institute    map it

    ADD TO CALENDAR SHARE

    CONTACT Elizabeth Rentfro    elizabeth.rentfro@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Nov
    12

    Registration for Winter 2019 begins

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Monday, November 12, 2018

    ADD TO CALENDAR SHARE

    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Nov
    12

    NU Biotechnology Networking Reception

    McCormick-Chemical and Biological Engineering

    2:00 PM Louis Room, Norris University Center

    EVENT DETAILS

    TIME Monday, November 12, 2018 at 2:00 PM - 5:00 PM

    LOCATION Louis Room, Norris University Center    map it

    ADD TO CALENDAR SHARE

    CONTACT Emily Kocevar    e-kocevar@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Nov
    15

    ChBE Seminar Series: Neda Bagheri

    McCormick-Chemical and Biological Engineering

    9:00 AM L211, Technological Institute

    EVENT DETAILS

    TIME Thursday, November 15, 2018 at 9:00 AM - 10:00 AM

    LOCATION L211, Technological Institute    map it

    ADD TO CALENDAR SHARE

    CONTACT Elizabeth Rentfro    elizabeth.rentfro@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Nov
    21

    Thanksgiving vacation begins 6 p.m.

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Wednesday, November 21, 2018

    ADD TO CALENDAR SHARE

    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Nov
    22

    Thanksgiving day

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Thursday, November 22, 2018

    ADD TO CALENDAR SHARE

    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Nov
    26

    Fall Classes resume 8 a.m.

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Monday, November 26, 2018

    ADD TO CALENDAR SHARE

    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Nov
    28

    14th Annual Mah Lecture: Pablo Debenedetti

    McCormick-Chemical and Biological Engineering

    5:00 PM L211, Technological Institute

    EVENT DETAILS

    TIME Wednesday, November 28, 2018 at 5:00 PM - 6:00 PM

    LOCATION L211, Technological Institute    map it

    ADD TO CALENDAR SHARE

    CONTACT Elizabeth Rentfro    elizabeth.rentfro@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Nov
    29-6

    ChBE Seminar Series: Pablo Debenedetti

    McCormick-Chemical and Biological Engineering

    9:00 AM L211, Technological Institute

    EVENT DETAILS

    TIME Thursday, November 29, 2018 at 9:00 AM - 10:00 AM

    LOCATION L211, Technological Institute    map it

    ADD TO CALENDAR SHARE

    CONTACT Elizabeth Rentfro    elizabeth.rentfro@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Dec
    6

    ChBE Seminar Series: Student Presentations

    McCormick-Chemical and Biological Engineering

    9:00 AM L211, Technological Institute

    EVENT DETAILS

    TIME Thursday, December 6, 2018 at 9:00 AM - 10:00 AM

    LOCATION L211, Technological Institute    map it

    ADD TO CALENDAR SHARE

    CONTACT Elizabeth Rentfro    elizabeth.rentfro@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Dec
    8

    Fall classes end

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Saturday, December 8, 2018

    ADD TO CALENDAR SHARE

    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Dec
    10

    Fall examinations begin

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Monday, December 10, 2018

    ADD TO CALENDAR SHARE

    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Dec
    15

    Fall examinations end

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Saturday, December 15, 2018

    ADD TO CALENDAR SHARE

    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar

  • Dec
    15

    Winter Break Begins

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Saturday, December 15, 2018

    ADD TO CALENDAR SHARE

    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar