High concentration of H2 and O2 nanobubbles in water electrolytes and their collective optical effect

A. V. Postnikov*, I. V. Uvarov, M. V. Lokhanin, V. B. Svetovoy

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

4 Citations (Scopus)

Abstract

Water electrolysis with a fast change of the polarity pumps in the liquid a huge amount of hydrogen and oxygen gases. In contrast with the DC electrolysis the gases do not form visible bubbles but change significantly the refractive index of the liquid nearby the electrodes from n = 1.35 to the values smaller than 1.19. The decrease of n is registered as distortion of the images of the electrodes. We argue that all the gas is collected in H2 and O2 nanobubbles with a size smaller than 200 nm. The concentration of nanobubbles with a size of 100 nm is estimated as 1021 m-3. Due to a significant contribution from the Laplace pressure the effective supersaturation reaches 500 for hydrogen and 150 for oxygen.

Original languageEnglish
Title of host publication2017 the 2nd International Conference on Energy Engineering and Smart Materials, ICEESM 2017
EditorsTatiana Perova
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415645
DOIs
Publication statusPublished - 12-Sept-2017
Event2017 2nd International Conference on Energy Engineering and Smart Materials, ICEESM 2017 - Lyon, France
Duration: 7-Jul-20179-Jul-2017

Publication series

NameAIP Conference Proceedings
Volume1884
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2017 2nd International Conference on Energy Engineering and Smart Materials, ICEESM 2017
Country/TerritoryFrance
CityLyon
Period07/07/201709/07/2017

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