Surface phenomena on the electrolyte gas bubbles and the MHD effect under the electrolysis of water in a magnetic field

Authors

  • V. N. Zaichenko Vernadsky Institute of general and inorganic chemistry of National Academy of Sciences of Ukraine
  • I. A. Slobodyanyuk Vernadsky Institute of general and inorganic chemistry of National Academy of Sciences of Ukraine

DOI:

https://doi.org/10.15407/hftp07.01.035

Keywords:

electrolysis, hydrated electrons, Lorentz force, magnetic field, overpotential

Abstract

It is known that effect of an external constant magnetic field (CMF) on the process of electrolysis of water at a certain orientation of the vectors of the electric and magnetic fields reduces the overvoltage of hydrogen and oxygen evolution. The mechanism of this action due to the formation of magneto-hydrodynamic microvortices of electrolyte around the bubbles, facilitating their separation from the electrodes, i.e. removal electrolysis products, can take place, but it is not consistent with our results. We have found that due to the influence of CMF in the moment of separation from the electrode and within the initial section, the trajectory of the bubble is close to parabolic, which is then changed to a straight vertical motion. According to the Lorentz law, it has been found that hydrogen bubbles are negatively charged and those of oxygen - positively in the entire range of pH, including pH of 2.5, when the charge of bubbles due to adsorption of ions from the electrolyte is zero. It is known that the homogeneous CMF influence only on moving charges. It is suggested that such charges moving over the surface of the bubbles may be issued from the cathode electrons.

References

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How to Cite

(1)
Zaichenko, V. N.; Slobodyanyuk, I. A. Surface Phenomena on the Electrolyte Gas Bubbles and the MHD Effect under the Electrolysis of Water in a Magnetic Field. Him. Fiz. Tehnol. Poverhni 2016, 7, 35-43.

Issue

Vol. 7 No. 1 (2016): Chemistry, Physics and Technology of Surface / Himia, Fizika ta Tehnologia Poverhni

Section

Articles

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