Raman spectroscopy and shadowgraph visualization of excess protons in high-voltage electrolysis of pure water

Elmar C. Fuchs, Doekle Yntema, Jakob Woisetschläger

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

In a horizontal electrohydrodynamic bridge experiment, protons are created at the anode via high-voltage electrolysis. The hydrated protons can be observed both optically using shadowgraphy and Raman spectroscopy. If the system is taken out of its electrochemical equilibrium by a sudden disruption of the bridge, excess protons remain in the anolyte. These protons are observed via an enhancement of solvated protons and their accumulation at the liquid surface, causing a residual electric field of several kV/m and a reduction of surface tension by a few mN/m as they accumulate at and escape through the surface.
Originalspracheenglisch
Aufsatznummer365302
Seitenumfang10
FachzeitschriftJournal of physics / D
Jahrgang52
DOIs
PublikationsstatusVeröffentlicht - 5 Jul 2019

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shadowgraph photography
electrolysis
Electrolysis
Raman spectroscopy
Protons
high voltages
Visualization
protons
Water
Electric potential
water
Electrohydrodynamics
electrohydrodynamics
liquid surfaces
escape
Surface tension
Anodes
interfacial tension
anodes
Electric fields

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    Fields of Expertise

    • Sonstiges

    Treatment code (Nähere Zuordnung)

    • Experimental

    Dies zitieren

    Raman spectroscopy and shadowgraph visualization of excess protons in high-voltage electrolysis of pure water. / Fuchs, Elmar C.; Yntema, Doekle; Woisetschläger, Jakob.

    in: Journal of physics / D, Jahrgang 52, 365302, 05.07.2019.

    Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

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    abstract = "In a horizontal electrohydrodynamic bridge experiment, protons are created at the anode via high-voltage electrolysis. The hydrated protons can be observed both optically using shadowgraphy and Raman spectroscopy. If the system is taken out of its electrochemical equilibrium by a sudden disruption of the bridge, excess protons remain in the anolyte. These protons are observed via an enhancement of solvated protons and their accumulation at the liquid surface, causing a residual electric field of several kV/m and a reduction of surface tension by a few mN/m as they accumulate at and escape through the surface.",
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    AU - Fuchs, Elmar C.

    AU - Yntema, Doekle

    AU - Woisetschläger, Jakob

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    N2 - In a horizontal electrohydrodynamic bridge experiment, protons are created at the anode via high-voltage electrolysis. The hydrated protons can be observed both optically using shadowgraphy and Raman spectroscopy. If the system is taken out of its electrochemical equilibrium by a sudden disruption of the bridge, excess protons remain in the anolyte. These protons are observed via an enhancement of solvated protons and their accumulation at the liquid surface, causing a residual electric field of several kV/m and a reduction of surface tension by a few mN/m as they accumulate at and escape through the surface.

    AB - In a horizontal electrohydrodynamic bridge experiment, protons are created at the anode via high-voltage electrolysis. The hydrated protons can be observed both optically using shadowgraphy and Raman spectroscopy. If the system is taken out of its electrochemical equilibrium by a sudden disruption of the bridge, excess protons remain in the anolyte. These protons are observed via an enhancement of solvated protons and their accumulation at the liquid surface, causing a residual electric field of several kV/m and a reduction of surface tension by a few mN/m as they accumulate at and escape through the surface.

    KW - floating water bridge, excess charge, high-voltage electrolysis, hydrated proton, electrohydrodynamic liquid bridge, Raman scattering

    UR - https://iopscience.iop.org/article/10.1088/1361-6463/ab252b

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