Toward Understanding the Formation Mechanism and OER Catalytic Mechanism of Hydroxides by In Situ and Operando Techniques

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2023
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Wang, Xingkun
Huang, Minghua
Jiang, Heqing
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Developing efficient and affordable electrocatalysts for the sluggish oxygen evolution reaction (OER) remains a significant barrier that needs to be overcome for the practical applications of hydrogen production via water electrolysis, transforming CO2 to value‐added chemicals, and metal‐air batteries. Recently, hydroxides have shown promise as electrocatalysts for OER. In situ or operando techniques are particularly indispensable for monitoring the key intermediates together with understanding the reaction process, which is extremely important for revealing the formation/OER catalytic mechanism of hydroxides and preparing cost‐effective electrocatalysts for OER. However, there is a lack of comprehensive discussion on the current status and challenges of studying these mechanisms using in situ or operando techniques, which hinders our ability to identify and address the obstacles present in this field. This review offers an overview of in situ or operando techniques, outlining their capabilities, advantages, and disadvantages. Recent findings related to the formation mechanism and OER catalytic mechanism of hydroxides revealed by in situ or operando techniques are also discussed in detail. Additionally, some current challenges in this field are concluded and appropriate solution strategies are provided.

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ISO 690CHEN, Zongkun, Qiqi FAN, Jian ZHOU, Xingkun WANG, Minghua HUANG, Heqing JIANG, Helmut CÖLFEN, 2023. Toward Understanding the Formation Mechanism and OER Catalytic Mechanism of Hydroxides by In Situ and Operando Techniques. In: Angewandte Chemie International Edition. Wiley. 2023, 62(51), e202309293. ISSN 1433-7851. eISSN 1521-3773. Available under: doi: 10.1002/anie.202309293
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@article{Chen2023-09-25Towar-67764,
  year={2023},
  doi={10.1002/anie.202309293},
  title={Toward Understanding the Formation Mechanism and OER Catalytic Mechanism of Hydroxides by In Situ and Operando Techniques},
  number={51},
  volume={62},
  issn={1433-7851},
  journal={Angewandte Chemie International Edition},
  author={Chen, Zongkun and Fan, Qiqi and Zhou, Jian and Wang, Xingkun and Huang, Minghua and Jiang, Heqing and Cölfen, Helmut},
  note={Article Number: e202309293}
}
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