View Item 
        •   Utrecht University Student Theses Repository Home
        • UU Theses Repository
        • Theses
        • View Item
        •   Utrecht University Student Theses Repository Home
        • UU Theses Repository
        • Theses
        • View Item
        JavaScript is disabled for your browser. Some features of this site may not work without it.

        Browse

        All of UU Student Theses RepositoryBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

        Voltage-dependent nanomechanical mapping at the solid–liquid interface

        Thumbnail
        View/Open
        master_thesis_Jim.pdf (9.474Mb)
        Publication date
        2022
        Author
        Carstens, Jim
        Metadata
        Show full item record
        Summary
        Electrochemistry plays a role in green technologies such as catalysts, batteries, hydrogen production and photovoltaics. It is greatly influenced by local effects at the solid-liquid region, importantly electric double layers. Past research shows that atomic force microscopy is a suitable method for studying these inhomogeneous local effects. Our goal is to develop an experimental and data analysis method for studying these systems. This thesis demonstrates EC-AFM measurements in PFT-mode, with a custom electrochemical cell filled with H2SO4 electrolyte, on a normal pulse voltammetry potential-controlled gold substrate. Data analysis of the force spectroscopy shows a clear dependency of the forces on the potential. Average force curves highlight the numerical values, and force curve maps show reproducible spatially inhomogeneous potential dependence of the adhesion. Deviations in the adhesion appear at potentials that are in literature associated with sulfate and oxide adsorption.
        URI
        https://studenttheses.uu.nl/handle/20.500.12932/41596
        Collections
        • Theses
        Utrecht university logo