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Operando X-Ray Spectroscopic Techniques: A Focus on Hydrogen and Oxygen Evolution Reactions
Varsha M V1, Gomathi Nageswaran1
1Indian Institute of Space Science and Technology, Thiruvananthapuram, India.
Frontiers in Chemistry
|February 22, 2020
Summary
Understanding electrocatalyst behavior during reactions is key. Operando X-ray spectroscopy reveals dynamic structural and chemical changes in electrocatalysts for hydrogen and oxygen evolution reactions.
Area of Science:
- Electrocatalysis
- Materials Science
- Spectroscopy
Background:
- Studying electrocatalyst structural and chemical properties in situ is challenging.
- Understanding dynamic changes in catalyst reactivity and structure is crucial for elucidating reaction mechanisms.
- Technological advancements have spurred interest in in situ/operando investigations of the electrode/electrolyte interface.
Purpose of the Study:
- To review the application of operando X-ray spectroscopic techniques for electrocatalysis.
- To understand the behavior of electrocatalysts during hydrogen evolution and oxygen evolution reactions (HER and OER).
- To discuss recent studies on the dynamic nature and structural/chemical changes of electrocatalysts under reaction conditions.
Main Methods:
- Operando X-ray spectroscopy.
- In situ/operando investigation of electrode/electrolyte interfaces.
- Analysis of structural and chemical changes in electrocatalysts.
Main Results:
- Operando X-ray spectroscopy provides insights into dynamic changes in electrocatalysts.
- Techniques allow evaluation of structural and chemical evolution during HER and OER.
- Recent studies demonstrate the utility of these methods in diverse reaction environments.
Conclusions:
- Operando X-ray spectroscopy is a powerful tool for studying electrocatalysts.
- Understanding dynamic changes is vital for designing efficient catalysts.
- Further research using these techniques will advance electrocatalysis.
Keywords:
hydrogen evolution (HER)operando XASoperando XPSoxygen evolution (OER)reactivity of electrocatalystMore Related Videos
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