Výsledky vyhledávání - "Hossain, S. S."

Growth and Dynamics of Hydrogen Bubbles at Microelectrodes

Autor: Bashkatov, A., Hossain, S. S., Yang, X., Mutschke, G., Eckert, K.

Publikováno v: Nanobubble Conference 2022, 18.-21.09.2022, Magdeburg, Deutschland

The evolution and dynamics of gas bubbles has a strong impact on the efficiency of water electrolysis. Our poster will summarize recent work of our group on the hydrogen evolution at a microelectrode in acidic electrolytes. Depending on the applied p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4577::7a69dfed834e228f1cfd5a7dfa9149e2
https://www.hzdr.de/publications/Publ-36474-1

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The force balance of hydrogen bubbles growing and oscillating on a microelectrode

Autor: Hossain, S. S., Bashkatov, A., Yang, X., Mutschke, G., Eckert, K.

Publikováno v: Physical Review E 106(2022), 035105

Hydrogen evolution in acidic aqueous electrolytes was recently found to be characterized by a carpet of microbubbles covering the microelectrode and feeding the growth of the main bubbles by coalescence. Besides this, oscillatory behavior of the main

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4577::27f12ba09b4f85195fd8baa6f6a623b6
https://www.hzdr.de/publications/Publ-35123-1

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Modeling the oscillatory dynamics of gas bubbles growing at microelectrodes

Autor: Hossain, S. S., Bashkatov, A., Yang, X., Mutschke, G., Eckert, K.

Publikováno v: The 25th International Congress of Theoretical and Applied Mechanics, 22.-27.08.2021, Milan, Italy, 22.-27.08.2021, Milan, Italy
The 25th International Congress of Theoretical and Applied Mechanics, 22.-27.08.2021, Milan, Italy25th International Congress of Theoretical and Applied Mechanics – Book of Abstracts

The working mechanism of the recently observed bubble oscillation on microelectrodes is explained [1]. The force balance includes contributions from a thermocapillary force and a Columb force on the charged bubble. Comparison between model prediction

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::32fdf79f4f75466d71e47e6589c63cf2
https://www.hzdr.de/publications/Publ-34163-2

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Motion reversals of rising electrogenerated hydrogen bubbles

Autor: Bashkatov, A., Babich, A., Yang, X., Boenke, J., Hossain, S. S., Mutschke, G., Eckert, K.

Publikováno v: 18th Multiphase Flow Conference and Short Course, 08.-11.11.2021, Helmholtz-Zentrum Dresden-Rossendorf, Germany

The growth of hydrogen bubbles in water electrolysis is of high practical relevance due to the prominent role of hydrogen in the future energy system. The dynamics even of a single bubble is already multifaceted and is associated with several interdi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4577::1d454fdb3e3dd315f6c24355be9470c7
https://www.hzdr.de/publications/Publ-34061-1

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Dynamics of Single Hydrogen Bubbles at Pt Microelectrodes in Microgravity

Autor: Bashkatov, A., Yang, X., Mutschke, G., Fritzsche, B., Hossain, S. S., Eckert, K.

Publikováno v: Physical Chemistry Chemical Physics 23(2021), 11818-11830

The dynamics of single hydrogen bubbles electrogenerated in acidic electrolytes at a Pt microelectrode under potentiostatic conditions is investigated in microgravity during parabolic flights. Three bubble evolution scenarios have been identified dep

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4577::e41ff02a0e5c13f15f9fc080c62fd9e3
https://www.hzdr.de/publications/Publ-32580-1

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Dynamics of H2 Bubbles Growing at Microelectrodes

Autor: Bashkatov, A., Hossain, S. S., Yang, X., Mutschke, G., Eckert, K.

Publikováno v: The 25th International Congress of Theoretical and Applied Mechanics (25th ICTAM), 22.-27.08.2021, Milano, Italy
ISE Annual 72nd meeting, 29.08.-03.09.2021, Jeju Island, Korea

Recently a new phenomenon of long-lasting position oscillations of hydrogen gas bubbles produced via electrolysis at horizontally installed microelectrodes has been found. The bubbles grow until their detachment when buoyancy exceeds the retarding fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::5b1d9f5d24497354f00bb16562b9f3a7
https://www.hzdr.de/publications/Publ-34077-2

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