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 -