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Toward Rational Electrocatalyst Design: Dynamic Insights from Liquid Environmental Transmission Electron Microscopy
Hanyang Chen1, Ying Jiang1, Hao Bin Wu1
1Center of Electron Microscopy, State Key Laboratory of Silicon and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang Key Laboratory of Low-Carbon Synthesis of Value-Added Chemicals, Zhejiang University, Hangzhou, 310027, China.
Liquid environmental transmission electron microscopy (LETEM) bridges the gap between electrocatalyst research and real-world conditions. This technique reveals atomic-level insights into dynamic catalyst evolution, aiding in the design of advanced energy materials.
Area of Science:
- Physical Chemistry
- Materials Science
- Energy Conversion and Storage
Background:
- Electrocatalysis is vital for energy technologies but understanding atomic-level mechanisms is challenging.
- A gap exists between lab conditions and real-world electrocatalyst performance due to complex environments.
- Liquid environmental transmission electron microscopy (LETEM) offers a solution to study catalysts under operando conditions.
Purpose of the Study:
- To review research progress on the dynamic evolution of electrocatalysts using LETEM.
- To focus on structural changes of electrocatalysts in electro-liquid coupled environments.
- To provide insights for fundamental mechanism elucidation and rational catalyst design.
Main Methods:
- Utilizing liquid environmental transmission electron microscopy (LETEM) for high spatial and temporal resolution.
- Coupling LETEM with precise electrochemical measurements under operando conditions.
- Characterizing dynamic processes and structural evolution of electrocatalysts in realistic environments.
Main Results:
- LETEM enables atomic-scale characterization of electrocatalyst dynamics.
- Breakthroughs in understanding electrocatalyst behavior under realistic reaction conditions.
- Establishment of atomic-level structure-activity relationships.
Conclusions:
- LETEM is a powerful tool for elucidating electrocatalysis mechanisms.
- Understanding dynamic structural evolution is key to designing high-performance electrocatalysts.
- This review highlights LETEM's potential to bridge the material and environment gaps in electrocatalysis research.
