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

Elmar C. Fuchs; Doekle Yntema; Jakob Woisetschläger

doi:10.1088/1361-6463/ab252b

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

Elmar C. Fuchs, Doekle Yntema, Jakob Woisetschläger

Institute of Thermal Turbomachinery and Machine Dynamics (3190)

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	365302
Number of pages	10
Journal	Journal Physics D: Applied Physics
Volume	52
DOIs	https://doi.org/10.1088/1361-6463/ab252b
Publication status	Published - 5 Jul 2019

Keywords

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

Fields of Expertise

Sonstiges

Treatment code (Nähere Zuordnung)

Experimental

Access to Document

10.1088/1361-6463/ab252b

Cite this

@article{1cef523118074614b5d6cddc689eec51,

title = "Raman spectroscopy and shadowgraph visualization of excess protons in high-voltage electrolysis of pure water",

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.",

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

author = "Fuchs, {Elmar C.} and Doekle Yntema and Jakob Woisetschl{\"a}ger",

year = "2019",

month = jul,

day = "5",

doi = "10.1088/1361-6463/ab252b",

language = "English",

volume = "52",

journal = "Journal Physics D: Applied Physics",

issn = "1361-6463",

publisher = "IOP Publishing Ltd.",

}

TY - JOUR

T1 - Raman spectroscopy and shadowgraph visualization of excess protons in high-voltage electrolysis of pure water

AU - Fuchs, Elmar C.

AU - Yntema, Doekle

AU - Woisetschläger, Jakob

PY - 2019/7/5

Y1 - 2019/7/5

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

U2 - 10.1088/1361-6463/ab252b

DO - 10.1088/1361-6463/ab252b

M3 - Article

SN - 1361-6463

VL - 52

JO - Journal Physics D: Applied Physics

JF - Journal Physics D: Applied Physics

M1 - 365302

ER -

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

Abstract

Keywords

Fields of Expertise

Treatment code (Nähere Zuordnung)

Access to Document

Other files and links

Fingerprint

Cite this