11 April 2024 | Zheng Zhang, Chen Gu, Kun Wang, Haoxuan Yu, Jiaxuan Qiu, Shiyan Wang, Longlu Wang, Dafeng Yan
This review discusses the importance of bubble management in enhancing catalytic water splitting performance. Water splitting is a key method for hydrogen production, but bubble formation on electrode surfaces during electrolysis can hinder catalytic activity and stability. The review outlines advanced strategies to improve catalytic performance and mitigate bubble effects. These strategies include observing bubble behavior through experimental apparatus, analyzing factors influencing bubble formation, and designing efficient catalysts with modified electrode surface characteristics. The review also summarizes potential applications of bubble management in large-scale hydrogen production and identifies future research directions. Key factors affecting bubble detachment include electrode surface properties, electrolyte concentration, current density, bubble size and morphology, and flow conditions. The review highlights the role of the Marangoni effect, mechanical vibration, water velocity, and sonication in bubble management. Additionally, it discusses catalyst design strategies to promote bubble detachment, such as nanoarray structures, surface hydrophobicity, and microstructure optimization. The review concludes that effective bubble management is crucial for improving the efficiency and stability of water splitting processes.This review discusses the importance of bubble management in enhancing catalytic water splitting performance. Water splitting is a key method for hydrogen production, but bubble formation on electrode surfaces during electrolysis can hinder catalytic activity and stability. The review outlines advanced strategies to improve catalytic performance and mitigate bubble effects. These strategies include observing bubble behavior through experimental apparatus, analyzing factors influencing bubble formation, and designing efficient catalysts with modified electrode surface characteristics. The review also summarizes potential applications of bubble management in large-scale hydrogen production and identifies future research directions. Key factors affecting bubble detachment include electrode surface properties, electrolyte concentration, current density, bubble size and morphology, and flow conditions. The review highlights the role of the Marangoni effect, mechanical vibration, water velocity, and sonication in bubble management. Additionally, it discusses catalyst design strategies to promote bubble detachment, such as nanoarray structures, surface hydrophobicity, and microstructure optimization. The review concludes that effective bubble management is crucial for improving the efficiency and stability of water splitting processes.