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Updated: Jun 24, 2025

Translating Extracellular Electron Transfer Activities with Organic Electrochemical Transistors
Published on: January 31, 2025
Twisto-Electrochemical Activity Volcanoes in Trilayer Graphene
Mohammad Babar1, Ziyan Zhu2, Rachel Kurchin3
1Department of Mechanical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States.
Abstract:
In this work, we develop a twist-dependent electrochemical activity map, combining a low-energy continuum electronic structure model with modified Marcus-Hush-Chidsey kinetics in trilayer graphene. We identify a counterintuitive rate enhancement region spanning the magic angle curve and incommensurate twists in the system geometry. We find a broad activity peak with a ruthenium hexamine redox couple in regions corresponding to both magic angles and incommensurate angles, a result qualitatively distinct from the twisted bilayer case. Flat bands and incommensurability offer new avenues for reaction rate enhancements in electrochemical transformations.
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