Revisited electrochemical gas evolution reactions from the perspective of gas bubbles

Yin, Weinan; Cai, Yuntao; Xie, Lingbin; Huang, Hao; Zhu, Enchi; Pan, Junan; Bu, Jiaqi; Chen, Hao; Yuan, Ye; Zhuang, Zechao; Wang, Longlu

doi:10.1007/s12274-022-5133-5

Cited by 46 publications

(11 citation statements)

References 139 publications

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“…Furthermore, the complex dynamics involving the nucleation, growth, stationary state, and release of electrochemically generated nanobubbles may not always precisely reflect the true electrocatalytic reaction [134] . Nevertheless, this complexity presents new opportunities for the in‐depth study of nanobubbles themselves, which hold significance in the field of electrocatalysis [135,136] …”

Section: Optical Microscopiesmentioning

confidence: 99%

“…[134] Nevertheless, this complexity presents new opportunities for the in-depth study of nanobubbles themselves, which hold significance in the field of electrocatalysis. [135,136] Apart from abovementioned methods, DFM was employed to observe the local reaction footprint by tracking the precipitation of metal hydroxide during the electrocatalytic process. [137][138][139] This precipitation is associated with the localized increase in pH during electrocatalysis.…”

Section: Dark Field Microscopymentioning

confidence: 99%

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Operando imaging in electrocatalysis: insights into microstructural materials design

Fan,

Chen,

Zhang

et al. 2024

Chemistry An Asian Journal

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Electrocatalysis plays a pivotal role in renewable energy conversion and associated chemical production, enabling a variety of emerging sustainability technologies with societal impacts. Achieving marked improvement in electrocatalytic performance relies on a deep understanding of catalyst microstructures and catalytic mechanisms, with a particular emphasis on the detailed, spatiotemporally resolved characterizations of the underlying fundamental electrocatalytic processes. This fundamental need drives the development of operando imaging techniques, which improve the ability to detect dynamic structural changes in electrocatalysts and establish clear structure‐performance relationships for morphologically complex, hierarchically structured catalytic materials. This review aims to highlight significant advancements in the application of operando imaging techniques to develop a deeper understanding of important heterogeneous electrocatalytic reactions critical for emerging sustainability technologies. We summarize the up‐to‐date key mechanistic insights regarding these reactions achieved through a range of operando imaging techniques, including electron microscopies, X‐ray imaging techniques, scanning probe microscopies, and optical microscopies. We conclude by pointing out emerging directions and future prospects within the field of operando imaging in electrocatalysis.

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Section: Optical Microscopiesmentioning

confidence: 99%

Section: Dark Field Microscopymentioning

confidence: 99%

Operando imaging in electrocatalysis: insights into microstructural materials design

Fan,

Chen,

Zhang

et al. 2024

Chemistry An Asian Journal

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“…These unique features present signicant technical challenges related to the gasliquid-solid triphasic interface. [33][34][35][36] For gas-evolving reactions, issues arise from gas bubbles adhering to electrodes, reducing the efficiency and stability of these heterogeneous electrochemical reactions (Fig. 2a and b).…”

Section: Importance and Challenges In Gas-involving Reactionsmentioning

confidence: 99%

Tailoring hydrophilic and hydrophobic microenvironments for gas–liquid–solid triphase electrochemical reactions

Ryu,

Lee

2024

J. Mater. Chem. A

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“…The process of bubble behavior involves nucleation, growth, and detachment on the electrode, ,, as illustrated in Figure . Nucleation occurs after the production and diffusion saturation of hydrogen and oxygen molecules. − When the generated gas molecules during the electrochemical reaction saturate the electrolytes, the oversaturated gas molecules in bulk solution diffuse and adsorb to the electrode surface and then nucleate through the small gas clusters (aggregated by dozens of molecules), as seen in Figure a.…”

Section: Bubble Behaviormentioning

confidence: 99%

Bubble Management for Electrolytic Water Splitting by Surface Engineering: A Review

Cheng,

Du,

Ding

et al. 2023

Langmuir

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Revisited electrochemical gas evolution reactions from the perspective of gas bubbles

Cited by 46 publications

References 139 publications

Operando imaging in electrocatalysis: insights into microstructural materials design

Operando imaging in electrocatalysis: insights into microstructural materials design

Tailoring hydrophilic and hydrophobic microenvironments for gas–liquid–solid triphase electrochemical reactions

Bubble Management for Electrolytic Water Splitting by Surface Engineering: A Review

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