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<p>Live imaging of electrochemical processes using electrochemical liquid phase electron microscopy (EC-LP-EM) setups is a cutting-edge research field, enabling insights into the dynamic behavior of the electrode–electrolyte interface at the nanoscale. Yet, size constraints in EC-LP-EM chips used for analyses add significant complexity, considering electrode architectures, mass transport properties, and operation. Additionally, radiolysis induced by electron probe–electrolyte interactions interferes with electrochemical signals. This snapshot review summarizes fundamental electrochemical concepts and how experimental observations are affected by the introduced radiolysis. Furthermore, we highlight studies that handled beam effects, obtaining <i>in situ</i> electrochemical data consistent with non-irradiated or <i>ex situ</i> counterparts. Instead of discussing artifacts, we propose ways for harnessing radiolysis to tailor harsher environments for accelerated stress tests (AST) to study degradation mechanisms of energy materials. This might aid particularly in the understanding and development of improved materials for electrochemical energy conversion devices, i.e., batteries, fuel cells, and electrolyzers.</p> Graphic Abstract <p></p>

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A snapshot review on utilizing radiolysis in electrochemical liquid phase electron microscopy for accelerated degradation analyses

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年9月19日

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  • A. Lucía Morales,
  • Andreas Körner,
  • Birk Fritsch,
  • Giuseppe De Salvo,
  • Karl J. J. Mayrhofer,
  • Serhiy Cherevko,
  • Andreas Hutzler

摘要

Live imaging of electrochemical processes using electrochemical liquid phase electron microscopy (EC-LP-EM) setups is a cutting-edge research field, enabling insights into the dynamic behavior of the electrode–electrolyte interface at the nanoscale. Yet, size constraints in EC-LP-EM chips used for analyses add significant complexity, considering electrode architectures, mass transport properties, and operation. Additionally, radiolysis induced by electron probe–electrolyte interactions interferes with electrochemical signals. This snapshot review summarizes fundamental electrochemical concepts and how experimental observations are affected by the introduced radiolysis. Furthermore, we highlight studies that handled beam effects, obtaining in situ electrochemical data consistent with non-irradiated or ex situ counterparts. Instead of discussing artifacts, we propose ways for harnessing radiolysis to tailor harsher environments for accelerated stress tests (AST) to study degradation mechanisms of energy materials. This might aid particularly in the understanding and development of improved materials for electrochemical energy conversion devices, i.e., batteries, fuel cells, and electrolyzers.

Graphic Abstract