In Situ and Operando X-ray Scattering Methods in Electrochemistry and Electrocatalysis

Area of Science:

• Electrochemistry and Electrocatalysis
• Materials Science
• Surface Science

Background:

• Electrochemical and electrocatalytic processes are vital for sustainable energy and various technologies.
• Understanding material and interface structures under reaction conditions is key for process development.

Purpose of the Study:

• To review in situ and operando X-ray scattering studies for electrochemical systems.
• To highlight how these methods provide atomic, nano, and micro scale structural insights.

Main Methods:

• Comprehensive review of X-ray scattering techniques (e.g., diffraction, reflectivity).
• Application across diverse electrochemical systems: single crystals, nanoparticles, and devices.
• Focus on in situ and operando studies under reaction conditions.

Main Results:

• X-ray scattering provides structural data on bulk phases, electrode-electrolyte interfaces, and nanoscale morphology.
• Recent developments offer highly localized information on composition and electronic structure.
• Insights into structural evolution during electrocatalysis, deposition, dissolution, film formation, corrosion, and intercalation.

Conclusions:

• In situ and operando X-ray scattering are powerful tools for understanding electrochemical processes.
• These methods are essential for advancing sustainable energy solutions and materials design.