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Reconstructured Electrocatalysts during Oxygen Evolution Reaction under Alkaline Electrolytes.

Hongnan Jia1, Na Yao2, Juan Zhu1

  • 1College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, P. R. China.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|November 11, 2022
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Summary
This summary is machine-generated.

Surface reconstruction in electrocatalysts generates active species for the oxygen evolution reaction (OER). This review highlights the crucial role of substrate interactions in optimizing catalyst performance for water electrolysis.

Keywords:
alkaline electrolyteoxygen evolution reactionreconstruction phenomenonsubstrate effectwater electrolysis

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • The oxygen evolution reaction (OER) is critical for water electrolysis but is hindered by sluggish kinetics.
  • Electrocatalyst development requires a clear understanding of structure-activity relationships for efficient OER.
  • Dynamic surface reconstruction of catalysts during OER has emerged as a key phenomenon.

Purpose of the Study:

  • To review recent advancements in reconstructed electrocatalysts for OER.
  • To emphasize the significance of substrate effects on reconstructed catalyst species.
  • To discuss future directions for surface-reconstructed catalysts in water electrolysis.

Main Methods:

  • Utilizing advanced ex situ and in situ characterization techniques.
  • Summarizing typical reconstructed electrocatalysts and their performance.
  • Analyzing the interaction between reconstructed species and catalyst substrates.

Main Results:

  • Surface reconstruction can generate highly active species for water oxidation.
  • Substrate effects play a crucial, yet often overlooked, role in OER catalysis.
  • Understanding these interactions is key to designing efficient electrocatalysts.

Conclusions:

  • Surface reconstruction is a vital mechanism for enhancing OER activity.
  • Further research into substrate-reconstructed species interactions is needed.
  • Optimizing these interactions will advance water electrolysis technology.