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  • Oct
    18

    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

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

    LOCATION L211, Technological Institute    map it

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    CONTACT Elizabeth Rentfro    elizabeth.rentfro@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • May
    1

    BTP Seminar Series: Jorge Vazquez Anderson, Boston Consulting Group

    McCormick-Chemical and Biological Engineering (ChBE)

    4:30 PM

    EVENT DETAILS

    TIME Wednesday, May 1, 2024 at 4:30 PM - 5:30 PM

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    CONTACT Will Chaussee    william.chaussee@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • May
    2

    ChBE Seminar Series: "Interfacial colloidal interactions, dynamics, and assembly: from biomembranes to ordered 2D materials" - Peter Beltramo, University of Massachusetts

    McCormick-Chemical and Biological Engineering (ChBE)

    9:30 AM LR4, Technological Institute

    EVENT DETAILS

    TIME Thursday, May 2, 2024 at 9:30 AM - 10:45 AM

    LOCATION LR4, Technological Institute    map it

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    CONTACT Olivia Wise    olivia.wise@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • May
    8

    Extending Care: A Conversation about Conservation and Futurity

    Block Museum of Art

    6:00 PM Block Museum of Art, Mary and Leigh

    EVENT DETAILSmore info

    TIME Wednesday, May 8, 2024 at 6:00 PM - 7:30 PM

    LOCATION Block Museum of Art, Mary and Leigh    map it

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    CONTACT Block Museum of Art    block-museum@northwestern.edu EMAIL

    CALENDAR Block Museum of Art

  • May
    9

    ChBE Seminar Series: Influence of visible photons on catalytic reactions at metal nanoparticle surfaces - Phillip Christopher, University of California, Santa Barbara

    McCormick-Chemical and Biological Engineering (ChBE)

    9:30 AM LR4, Technological Institute

    EVENT DETAILS

    TIME Thursday, May 9, 2024 at 9:30 AM - 10:45 AM

    LOCATION LR4, Technological Institute    map it

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    CONTACT Olivia Wise    olivia.wise@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • May
    16

    35th Annual Hugh M. Hulburt Memorial Lecture: "Adsorption Thermodynamics for Process Simulation" - Chau-Chyun Chen, Texas Tech University

    McCormick-Chemical and Biological Engineering (ChBE)

    9:30 AM LR4 (M113), Technological Institute

    EVENT DETAILS

    TIME Thursday, May 16, 2024 at 9:30 AM - 10:45 AM

    LOCATION LR4 (M113), Technological Institute    map it

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    CONTACT Jennifer Young    jennifer.young@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • May
    23

    ChBE Seminar Series: ARDEI Annual Lecture - "Restructuring the STEM Pipeline: Dismantling Stereotypes and Microaggressions in STEM to Build Networks of Belonging and Support" - Christine Reyna, DePaul University

    McCormick-Chemical and Biological Engineering (ChBE)

    9:30 AM LR4, Technological Institute

    EVENT DETAILS

    TIME Thursday, May 23, 2024 at 9:30 AM - 10:45 AM

    LOCATION LR4, Technological Institute    map it

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    CONTACT Olivia Wise    olivia.wise@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • May
    30

    ChBE Seminar Series: Ruihan Li and Kunhuan Liu, Student Seminars

    McCormick-Chemical and Biological Engineering (ChBE)

    9:30 AM LR4, Technological Institute

    EVENT DETAILS

    TIME Thursday, May 30, 2024 at 9:30 AM - 10:45 AM

    LOCATION LR4, Technological Institute    map it

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    CONTACT Olivia Wise    olivia.wise@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering (ChBE)

  • Jun
    10

    Northwestern Engineering PhD Hooding and Master's Degree Recognition Ceremony

    McCormick School of Engineering and Applied Science

    9:00 AM Welsh-Ryan Arena

    EVENT DETAILSmore info

    TIME Monday, June 10, 2024 at 9:00 AM - 11:00 AM

    LOCATION Welsh-Ryan Arena   

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    CONTACT Amy Pokrass    amy.pokrass@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science

  • Jun
    10

    Northwestern Engineering Undergraduate Convocation

    McCormick School of Engineering and Applied Science

    2:00 PM Welsh-Ryan Arena

    EVENT DETAILSmore info

    TIME Monday, June 10, 2024 at 2:00 PM - 4:00 PM

    LOCATION Welsh-Ryan Arena   

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    CONTACT Amy Pokrass    amy.pokrass@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science

  • Aug
    14

    Undergraduate Quantum Summer School

    McCormick School of Engineering and Applied Science

    All Day Ford Motor Company Engineering Design Center

    EVENT DETAILSmore info

    TIME Wednesday, August 14, 2024

    LOCATION Ford Motor Company Engineering Design Center    map it

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    CONTACT Dongyang Li    lidongyang@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science