Phys.org June 21, 2024
A team of researchers in the US (University of Michigan, SLAC National Accelerator Laboratory, Carnegie Mellon University, MIT) developed a twist-dependent electrochemical activity map, combining a low-energy continuum electronic structure model with modified Marcus–Hush–Chidsey kinetics in Tri layer graphene. They identified a counterintuitive rate enhancement region spanning the magic angle curve and incommensurate twists in the system geometry. They found a broad activity peak with a ruthenium hexamine redox coupled in regions corresponding to both magic angles and incommensurate angles, a result qualitatively distinct from the twisted bilayer case. According to the researchers flat bands and incommensurability offer new avenues for reaction rate enhancements in electrochemical transformations… read more. Open Access TECHNICAL ARTICLE
Graphical abstract.
Credit: J. Am. Chem. Soc. 2024, 146, 23, 16105–16111, June 3, 2024