Highly customisable scanning droplet cell microscopes using 3D-printing

Kollender, Jan Philipp; Voith, Michael; Schneiderbauer, Simon; Mardare, Andrei Ionut; Hassel, Achim Walter

doi:10.1016/j.jelechem.2014.12.043

Cited by 58 publications

(48 citation statements)

References 26 publications

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“…Thus, the velocity profile can be considered as a representative case that can be used for further concentration profile calculations in the same geometry at identical flow rates. Note, that Kollender et al 20 simulated the flow profiles of similar cells using CFD methods and showed similar results, except for the cell referenced as V-shaped SDCM for which a vortex in the outlet tube was found. The V-shaped SDCM differs from the SFC considered here in that the electrode plane was drawn not through the cylinder axis intersection, but at a higher point, thus defining the electrode opening shape as two overlapping ellipses instead of a single ellipse.…”

Section: Resultsmentioning

confidence: 70%

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Numerical Simulation of an Electrochemical Flow Cell with V-Shape Channel Geometry

Kulyk

Cherevko

Auinger

et al. 2015

J. Electrochem. Soc.

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The electrolyte flow profile and reactive species concentration distribution are calculated for a Scanning Flow Cell (SFC) by means of finite element method numerical calculation using COMSOL Multiphysics software. In case of a simple one-step reaction with kinetic parameters close to those of the oxygen reduction reaction the applicability of conventional Koutecky-Levich (KL) analysis for the kinetic current calculations is proved. In addition, the influence of the cell geometry, particularly the angle between inlet and outlet tubes and the tube diameter, is investigated to guide the further optimization of the method. The applicability of the kinetic analysis is demonstrated experimentally on the example of oxygen reduction reaction.

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Section: Resultsmentioning

confidence: 70%

“…Thus, cells with openings sizes of the order of 1 mm are a compromise between miniaturization and controllability and robustness of production. Some of such cells have been presented and analyzed by Kollender et al 20 * Electrochemical Society Active Member. z E-mail: kulyk@mpie.de; mayrhofer@mpie.de…”

mentioning

confidence: 99%

Numerical Simulation of an Electrochemical Flow Cell with V-Shape Channel Geometry

Kulyk

Cherevko

Auinger

et al. 2015

J. Electrochem. Soc.

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“…Ta2O5 samples were produced by anodization of a Ta sheet [30,31], and ZnO samples were prepared in three different ways:…”

Section: (1 Kev Protons)mentioning

confidence: 99%

Electronic Stopping of Slow Protons in Oxides: Scaling Properties

et al. 2017

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Electronic stopping of slow protons in ZnO, VO2 (metal and semiconductor phases), HfO2 and Ta2O5 was investigated experimentally. As a comparison of the resulting stopping cross sections (SCS) to data for Al2O3 and SiO2 reveals, electronic stopping of slow protons does not correlate with electronic properties of the specific material such as band gap energies.Instead, the oxygen 2p states are decisive, as corroborated by DFT calculations of the electronic densities of states. Hence, at low ion velocities the SCS of an oxide primarily scales with its oxygen density.

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“…This electrochemical oxide growth occurs via high-field-assisted migration of Ti cations outwards and of oxygen ions inwards. Local oxidation was performed by means of a flow-type scanning droplet cell microscope (FT-SDCM) for which the measuring head was manufactured by 3D printing [29]. The thickness, composition, crystallinity, and charge distribution of the Ti-O films influence strongly their interaction with cells and other biological materials.…”

Section: Introductionmentioning

confidence: 99%