Department Events

Events

  • Feb
    22-15

    ChBE Seminar Series, Dr. Jeffrey J. Richards

    McCormick-Chemical and Biological Engineering

    8:45 AM L361, Technological Institute

    EVENT DETAILS

    Jeffrey J. Richards

    Title:
    Colloidal Fluids as Electrical Current Collectors

    Advances in synthetic techniques have enabled a revolution in the design of colloidal dispersions that contain particles with an enormous variety of sizes, shapes and compositions. These advances have not only provided access to a sophisticated understanding of intimate link between a dispersion’s microstructure and its macroscopic properties, but also form the basis of a powerful design paradigm to formulate advanced colloidal materials to address a wide range of important societal problems.

    In this talk, I will highlight our recent progress toward understanding the intrinsic link between the electrical conductivity and the rheological properties of suspensions of electrochemically active nanoparticles. Such suspensions increasingly comprise the working fluid in electrochemical flow applications. In this context, a key design constraint collector is the trade-off between electrical performance and viscosity. To examine the origin of these macroscopic properties, we formulated suspensions of two, high-structured carbon blacks in neat propylene carbonate and characterize their rheological and electrical properties using small amplitude oscillatory shear and impedance spectroscopy at concentrations spanning the fluid-gel transition. Using these methods, we identify the electrical and mechanical percolation transitions and rationalize these results in the context of the equilibrium microstructure determined from scattering measurements. These results coupled with emerging in situ characterization techniques reveal a pathway toward current collectors with improved performance.

    Bio:
    Jeffrey J. Richards received his PhD in August 2014 from the Department of Chemical Engineering at the University of Washington working for Dr. Lilo D. Pozzo. During that time, he was an NSF IGERT Fellow and the College of Engineering Dean’s Fellow. After graduating from UW, he had the opportunity to join Dr. Norman Wagner’s group at the University of Delaware as a postdoctoral scholar in the Department of Biomolecular and Chemical Engineering Department before starting his NRC Fellowship at the NIST Center for Neutron Research in Gaithersburg, MD. Jeffrey’s current research focus at the NCNR is the development of in situ characterization techniques for electrochemically active colloidal systems.

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    TIME Thursday, February 22, 2018 at 8:45 AM - 10:00 AM

    LOCATION L361, Technological Institute    map it

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    CONTACT Cody Jarrett    cody.jarrett@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Feb
    26

    Segal Design Leadership Series presents: Every Day is a Prototype

    McCormick School of Engineering and Applied Science

    4:00 PM McCormick Auditorium, James L Allen Center

    EVENT DETAILSmore info

    TIME Monday, February 26, 2018 at 4:00 PM - 5:00 PM

    LOCATION McCormick Auditorium, James L Allen Center    map it

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    CONTACT Northwestern Engineering Events    northwestern-engineering-events@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science

  • Mar
    1-15

    ChBE Seminar Series, Dr. Amanda Marciel

    McCormick-Chemical and Biological Engineering

    8:45 AM L361, Technological Institute

    EVENT DETAILS

    TIME Thursday, March 1, 2018 at 8:45 AM - 10:00 AM

    LOCATION L361, Technological Institute    map it

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    CONTACT Cody Jarrett    cody.jarrett@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Mar
    2

    Biotechnology Day

    McCormick-Chemical and Biological Engineering

    1:00 PM Norris University Center

    EVENT DETAILS

    TIME Friday, March 2, 2018 at 1:00 PM - 7:00 PM

    LOCATION Norris University Center    map it

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    CONTACT Natalie Champagne    natalie.champagne@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Mar
    8-15

    ChBE Seminar Series

    McCormick-Chemical and Biological Engineering

    8:45 AM L361, Technological Institute

    EVENT DETAILS

    TIME Thursday, March 8, 2018 at 8:45 AM - 10:00 AM

    LOCATION L361, Technological Institute    map it

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    CONTACT Cody Jarrett    cody.jarrett@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Mar
    15

    ChBE Seminar Series

    McCormick-Chemical and Biological Engineering

    8:45 AM L361, Technological Institute

    EVENT DETAILS

    TIME Thursday, March 15, 2018 at 8:45 AM - 10:00 AM

    LOCATION L361, Technological Institute    map it

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    CONTACT Cody Jarrett    cody.jarrett@northwestern.edu EMAIL

    CALENDAR McCormick-Chemical and Biological Engineering

  • Mar
    17

    Winter Classes End

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Saturday, March 17, 2018

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

    CALENDAR University Academic Calendar

  • Mar
    19

    Winter Examinations Begin

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Monday, March 19, 2018

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

    CALENDAR University Academic Calendar