Wide-field imaging of active site distribution on semiconducting transition metal dichalcogenide nanosheets in electrocatalytic and photoelectrocatalytic processes DOI Creative Commons

Lisi Wen,

Houkai Chen, Rui Hao

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Semiconducting transition metal dichalcogenide (TMD) nanosheets are promising materials for electrocatalysis and photoelectrocatalysis. However, the existing analytical approaches inadequate at comprehensively describing operation of narrow-bandgap semiconductors in these two processes. Furthermore, distribution reactive sites on electrode surface dynamic movement carriers within during reactions remain ambiguous. To plug knowledge gaps, an

Language: Английский

Insights into Bubble Dynamics in Water Splitting DOI
Jaemin Park, Min Jae Kim, Youngeun Kim

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: unknown, P. 212 - 237

Published: Dec. 17, 2024

Water splitting is crucial for green hydrogen production, yet gas bubble dynamics has been underexplored until recently. Bubbles reduce electrochemically active surface area, increase overpotentials, and cause optical losses in (photo)electrochemical systems. Recent advancements both theoretical understanding experimental techniques have led to a deeper appreciation of the role that plays improving water performance. The present review revisits fundamental principles nucleation, growth, detachment during electrochemical reactions, highlighting recent progress single dynamics. Here we explore models behavior, observations using advanced techniques, strategies control We also discuss management devices enhance H2 production efficiency stability by facilitating effective detachment. In concluding section, outline prospects further studies future research directions needed overcome current challenges. This underscores critical achieving high performance provides roadmap directions.

Language: Английский

Citations

4
Electrochemical Correlative Microscopy: Discovering Insights into Structure-Reactivity Relationships for Electrochemical Energy Conversion and Storage DOI
Samuel F. Wenzel,

Roberto García Carrillo,

Hang Ren

et al.

Current Opinion in Electrochemistry, Journal Year: 2025, Volume and Issue: unknown, P. 101666 - 101666

Published: Feb. 1, 2025

Language: Английский

Citations

0
Imaging the Electrochemical Processes by Single‐Molecule Fluorescence Microscopy DOI Creative Commons
Fei Huang, Dezheng Zhang, Xuanhao Mei

et al.

Carbon Neutralization, Journal Year: 2025, Volume and Issue: 4(2)

Published: March 1, 2025

ABSTRACT To advance the development of novel and efficient electrochemical systems, it is crucial to dynamically image reaction processes in real‐time at single‐particle or single‐molecule level. Single‐molecule fluorescence microscopy has emerged as a powerful tool for situ imaging dynamic processes, which extensively utilized field reactions. In this perspective, we provide concise summary recent applications super‐resolution within energy electrochemistry. This paper offers insights evidence regarding electron transfer, surface adsorption, desorption reactants, well kinetic mechanisms involved energy‐related Finally, several remaining challenges are outlined based on vision expanded application across broader spectrum fields, including carbon dioxide reduction, methanol electrooxidation, nitric acid electroreduction, furfural electrooxidation reaction, etc.

Language: Английский

Citations

0
Self‐Supported Metallic Alkaline Hydrogen Evolution Electrocatalysts Tolerant for Ampere‐Level Current Densities DOI
Hao Xiong, Rong Zhuang, Bowen Cheng

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 19, 2024

Abstract Electrocatalytic water splitting is an attractive approach for large‐scale hydrogen generation, critical global carbon neutrality. However, the prevalent commercialized alkaline electrolysis generally conducted at low current densities due to sluggish kinetics and high overpotential, severely hampering high‐efficiency production. Exploration of evolution reaction (HER) electrocatalysts that can reliably operate ampere‐level under overpotentials thus a primary challenge. In contrast extensive studies using powdery electrocatalysts, self‐supported metallic catalytic cathode has become burgeoning direction toward densities, owing their integrated design with intensive interfacial binding, conductivity mechanical stability industrial tolerance/adaption. Recent years have witnessed tremendous research advances in designing electrocatalysts. Therefore, this flourishing area specially summarized. Beginning introduction theory mechanism HER, engineering strategies on electrodes are systematically summarized, including metal alloy construction, heterostructure engineering, doping manipulation, surface design. Meanwhile, particular emphasis focused relationship between structure, activity, HER. Finally, existing challenges, requirements industrial‐scale application, future aiming provide better solution electrolysis.

Language: Английский

Citations

3
Advanced Development of In situ Characterization Technique for Electrocatalytic Hydrogen Evolution Reaction DOI

Enchi Zhu,

Weifeng Hu, Jie Dong

et al.

Advanced Sustainable Systems, Journal Year: 2024, Volume and Issue: unknown

Published: June 3, 2024

Abstract Hydrogen evolution reaction (HER) from water splitting using renewable energy provides a promising solution to the global crisis and environmental problems. However, lack of in‐depth understanding mechanism clear identification catalytic active site has hindered further development low‐cost, high‐performance, long‐life efficient electrocatalysts. Through in situ characterization techniques, activity stability catalysts can be monitored real‐time, track structural intermediates, obtain deep mechanism, so as feedback guide utilization catalyst. In this review, advanced techniques electrocatalytic HER recent years is summarized. spectroscopy used behavior intermediates such adsorption, desorption, at molecular level reveal mechanism. The imaging observe material structure during situ, which valuable information for visualization hydrogen atomic level. This review contributes theadvanced technique HER.

Language: Английский

Citations

2
Multimode imaging analysis of single particles at the electrochemical interfaces DOI
Yu Cui,

Zhao Xin,

Muhammad Saqib

et al.

Current Opinion in Electrochemistry, Journal Year: 2024, Volume and Issue: 46, P. 101527 - 101527

Published: April 25, 2024

Language: Английский

Citations

1
Wide-field imaging of active site distribution on semiconducting transition metal dichalcogenide nanosheets in electrocatalytic and photoelectrocatalytic processes DOI Creative Commons

Lisi Wen,

Houkai Chen, Rui Hao

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Semiconducting transition metal dichalcogenide (TMD) nanosheets are promising materials for electrocatalysis and photoelectrocatalysis. However, the existing analytical approaches inadequate at comprehensively describing operation of narrow-bandgap semiconductors in these two processes. Furthermore, distribution reactive sites on electrode surface dynamic movement carriers within during reactions remain ambiguous. To plug knowledge gaps, an

Language: Английский

Citations

1