Electrically driven processes such as electrochemistry for energy storage devices and electrosorption for water desalination electrodes require the efficient transport of electrons by conductive additives incorporated into a non-conductive fluid matrix. Transport in these systems depends on the processing-dependent microstructure, but the mechanism remains unidentified. This work establishes a relationship between the flow-dependent microstructure and electron hopping rate via rheo-electric measurements of well-studied model conductive carbon black suspensions. The flow-dependent electrical properties are analyzed considering recent identification of how flow-induced dynamics play a role in determining the rate of electron transport. We anticipate these findings will have an impact in the definition of formulation and processing windows for applications including emerging electrochemical energy storage methods and water deionization technologies.

Last modified

• 07/29/2024

Creator

• Ramos, Paolo Z.
• Hipp, Julie B.
• Liu, Qingsong
• Richards, Jeffrey J.
• Wagner, Norman J.

DOI

• https://doi.org/10.21985/n2-3da6-7w52

Publisher

• Northwestern University

Date created

• 2024-02

Resource type

• Dataset

License

• Creative Commons CC0 1.0 Universal

Total Size

• 44.4 KB