Nanoscale Capillary Bridges Control the Adhesion of Ice: Implications for Anti-Icing via Hydrophobic Coatings, Properties, which is applicable to laboratory-based samples but also characterizes biological and commercial surfaces. The sDoFFI is a new tool for 2D characterization of wetting The sliding of a drop across this transition line follows aĬharacteristic stick-slip motion. Separating areas with different contact angles on the model sample. We quantified the sliding behavior of drops across the boundary SDoFFI detects features that are smaller than 0.5 µm in size. Wetting maps of the samples having sizes in the order of several square centimeters. lateral adhesion force) acting on the moving contact line is plotted against the drop position. In sDoFFI, a drop of liquid is raster-scanned over a surface. We developped a novel tool which we name scanning drop friction force microscopy (sDoFFI). International Journal of Hydrogen Energy, 48, 709 - 722 (2023).Ĭhirag Hinduja, Alexandre Laroche, Sajjad Shumaly, Yujiao Wang, Doris Vollmer, Hans-Jürgen Butt, Matthias Enders, Chao Zhu, Maximilian Kleber, Georg Derscheid, Rüdiger Berger, Hans-Dieter Bauer ✉, Birgit Scheppat, Hans-Jürgen Butt, Rüdiger Berger, Doris Vollmer ✉, Droplet, (2023).Įffects of surface morphology changes on FTIR-ATR spectroscopy with compacted Sodium Alanate (NaAlH 4) during cycling, Naveen Harindu Hemasiri, Muhammad Ashraf, Samrana Kazim, Robert Graf, Rüdiger Berger, Nisar Ullah, Muhammad Nawaz Tahir,Īlexandre Laroche, Abhinav Naga, Chirag Hinduja, Azadeh Aghili Sharifi, Alexander Saal, Hyeonjin Kim, Nan Gao, Sanghyuk Wooh, Interface Tweaking of Perovskite Solar Cells with Carbon Nitride-based 2D Materials, Ingo Lieberwirth, George Fytas and Kurt Kremer ✉, Singh, Yu Cang, Heloise Therien-Aubin, Markus Mezger, Rüdiger Berger, Left side: please enlarge video for better view.įree standing dry and stable nanoporous polymer films made through mechanical deformation, Our methodįor contact angles lower than 90° and by 33% for contact angles higher than 90°. We developed a deep learning-based super-resolution model. Increase the accuracy of contact angles, we implemnted a 4-segment super-resolution Here we analyze all video images automatically, while the drops are sliding down the tilted plate. The analysis of videos of drops sliding down a tilted plate is hampered due to the low resolution of the cutoutĪrea. Sajjad Shumaly, Fahimeh Darvish, Xiaomei Li, Alexander Saal, Chirag Hinduja, Werner Steffen, Oleksandra Kukharenko, We used contact angle measurements of sliding drops as an elegant way to characterize release kinetics. Random copolymer of methyl methacrylate and 8-quinolinyl-sulfide-ethyl acrylate (P(MMA-co-HQSEA)) by hydrolysis on the thiopropionate groups. In this work, we study the fast-release kinetics of 8-hydroxyquinoline (8HQ) from a pH-responsive The efficiency and the sustainability of activeĪgents are determined by the released kinetics. When the active agent is usedĪs a drug, corrosion inhibitor, or pesticide it is normally released upon a specific stimulus. Polymers conjugated with active agents have applications in biomedicine, anticorrosion, and smart agriculture. Xiaomei Li, Krisada Auepattana-Aumrung, Hans-Jürgen Butt, Daniel Crespy ✉, Rüdiger Berger ✉,Ĭhemical Physics Letters 158, 144901 (2023). Intense adsorption peaks at 1061 cm -1, 1108 cm - cm -1 demonstrate a semicrystalline state of PEO within the nanopores.įast-release kinetics of a pH-responsive polymer detected by dynamic contact angles, IR-AFM was employed to characterize the state of the polymer inside the pores. Viscosity intermediate to the melt and crystal states. Within nanoscopic cylindrical pores we show that a semicrystalline polymer can flow at temperatures below the melting point with a Semicrystalline polymers are solids of very high viscosity that can only flow above their melting temperature. We find that the Galvani potential drops at grain boundaries near the lithium metal electrode during plating as a response to the preferentialĬhien-Hua Tu, Martin Steinhart, Rüdiger Berger, Michael Kappl, Hans-Jürgen Butt, George Floudas ✉, To map locally time-dependent electric potential changes in LLZO garnet-type solid electrolyte. Here, we report the use of operando Kelvin Lithium dendrites which grow beteen anode and cathode and finally lead to a short cut of the battery. Tpically, all-solid-state batteries suffer from The growth of lithium dendrites in inorganic solid electrolytes isĪn essential drawback that hinders the development of reliable all-solid-state lithium metal batteries. We investigated all-solid-state battery materials while charging an discharging. Richter, Gunnar Glasser, Franjo Weber, Hans-Jürgen Butt, Grain boundaries via operando microscopy techniques,Ĭhao Zhu, Till Fuchs, Stefan A.L. Understanding the evolution of lithium dendrites at Li 6.25Al 0.25La 3Zr 2O 12
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