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 […]
Tag Archives: Electrochemistry
Anti-dust tech paves way for self-cleaning surfaces
Phys.org February 22, 2023 Dust accumulation is detrimental to optical elements, electronic devices, and mechanical systems and is a significant problem in space missions and renewable energy deployment. A team of researchers in the US (UT Austin, industry) fabricated and demonstrated antidust nanostructured surfaces that can remove close to 98% of lunar particles solely via gravity. The structures are fabricated using a highly scalable nanocoining and nanoimprint process, where nanostructures with precise geometry and surface properties are patterned on polycarbonate substrates. The dust mitigation properties of the nanostructures were characterized using optical metrology, electron microscopy, and image processing algorithms to […]