Gas Evolution in Water Electrolysis

PA Kempler, RH Coridan, L Luo - Chemical Reviews, 2024 - ACS Publications
Gas bubbles generated by the hydrogen evolution reaction and oxygen evolution reaction
during water electrolysis influence the energy conversion efficiency of hydrogen production …

Bridging Innovations of Phase Change Heat Transfer to Electrochemical Gas Evolution Reactions

L Zhang, R Iwata, Z Lu, X Wang, CD Díaz-Marín… - Chemical …, 2024 - ACS Publications
Bubbles play a ubiquitous role in electrochemical gas evolution reactions. However, a
mechanistic understanding of how bubbles affect the energy efficiency of electrochemical …

In-situ measurements of temperature field and Marangoni convection at hydrogen bubbles using schlieren and PTV techniques

A Babich, A Bashkatov, X Yang, G Mutschke… - International Journal of …, 2023 - Elsevier
This work adapts the schlieren technique for in-situ measurement of temperature fields
around gas bubbles growing during water electrolysis. First, the optical setup and the …

[HTML][HTML] Impact of tracer particles on the electrolytic growth of hydrogen bubbles

Y Han, A Bashkatov, M Huang, K Eckert… - Physics of Fluids, 2024 - pubs.aip.org
The thermocapillary effect at gas bubbles growing at micro-electrodes seems well
understood. However, the interfacial flow measured in the upper bubble part decays faster …

Mass transport at gas-evolving electrodes

F Sepahi, R Verzicco, D Lohse, D Krug - Journal of Fluid Mechanics, 2024 - cambridge.org
Direct numerical simulations are utilised to investigate mass-transfer processes at gas-
evolving electrodes that experience successive formation and detachment of bubbles. The …

In situ observation and electrical signal analysis of different bubble detachment modes on microelectrode surface

Z Duan, Q Xu, Y She, T Nie, X Luo… - Journal of The …, 2024 - iopscience.iop.org
The deactivation of the reaction surface caused by bubble covering is an important factor
that causes the decrease in the efficiency of water electrolysis. By combining an …

Insight into the electrolyte concentration impact on single hydrogen bubble evolution dynamics at a microelectrode during electrochemical water splitting

C Guo, X Lu, Y Zhu, L Ma, D Jing - Physics of Fluids, 2024 - pubs.aip.org
Bubbles generated during electrochemical water splitting could adhere to the electrode
surface and therefore impede the reaction. Thus, understanding and manipulating the …

Hydrogen bubble evolution and gas transport mechanism on a microelectrode determined by cathodic potential and temperature

X Lu, D Yadav, J Wang, L Jing, Y Zhu, L Ma, D Jing - Physics of Fluids, 2024 - pubs.aip.org
Enhancing the efficiency of hydrogen production by optimizing gas product transfer within
water electrolysis systems is essential. Employing high-speed photography and …

Enhancing hydrogen bubble release from a microelectrode through precise tuning of Marangoni forces with nonionic surfactant

X Lu, T Nie, D Yadav, X Li, Y Zhang, L Ma, D Jing - Physics of Fluids, 2024 - pubs.aip.org
Understanding and controlling hydrogen bubble growth and detachment during water
electrolysis is crucial for improving its efficiency. This study investigates bubble dynamics for …

Measuring three-dimensional bubble dynamics for hydrogen production via water electrolysis

X Mei, S Yuan, C Zhao, X Yan, CY Zhao, Q Wang - Physics of Fluids, 2023 - pubs.aip.org
The commercialization of mass hydrogen production via water electrolysis is presently
limited by low operational current densities. The optimal performance of electrolysis cells is …