(7ch) Colloidal Fluids As Electrical Current Collectors
- Conference: AIChE Annual Meeting
- Year: 2017
- Proceeding: 2017 Annual Meeting
- Group: Meet the Faculty Candidate Poster Session - Sponsored by the Education Division
- Time: Sunday, October 29, 2017 - 1:00pm-3:30pm
Current Research: I will highlight the progress I have made toward understanding the relationship between the electrical conductivity and the rheological properties of suspensions of electrically conductive nanoparticles in the quiescent state and under steady shear. Such suspensions find use as the conducting current collectors in electrochemical flow applications. Key to their performance in this application is a trade-off that arises between maximizing electrical conductivity and minimizing viscosity. To study the origin of this trade-off, suspensions of high structured carbon blacks are formulated in neat propylene carbonate and are characterized, using small amplitude oscillatory shear and impedance spectroscopy, to elucidate their electrorheological behavior spanning their fluid-gel transition. Using these methods, I identify the electrical and mechanical percolation transitions and couple these measurements with small angle neutron scattering experiments to probe their microstructural origin. The comprehensive picture provided by the combination of these three measurements harmonizes several emerging experimental results and guides the development of current collectors with improved performance. Future directions for this research involve looking at the field dependence mobility of electrons through suspensions of conducting particles and its link to particle dynamics.
2015-Present NRC Postdoctoral Researcher â National Institute of Standards and Technology â NCNR Advisor: Paul D. Butler and Norman J. Wagner
2009-2014 Doctor of Philosophy - University of Washington - âStructural Characterization of Composite Thin-Film and Dispersed Phase Conjugated Polymer/Fullerene Compositesâ: Advisor: Lilo D. Pozzo
Teaching Interests: I know that the success of my career as a professor in chemical engineering will be evaluated not only by my research but also based on my efficacy as an instructor, a mentor, and a research advisor. True mastery of each of these roles is a lifetime endeavor, but I have developed a strong foundation on which to build a successful teaching career. The training I received as I acquired my B.S. and PhD in chemical engineering as well as my research interests has natural connections with undergraduate Heat and Mass Transport and Thermodynamics coursework. I also have extensive experience in instructing students in the field of colloids and interfacial sciences both at the undergraduate and graduate level and materials characterization.