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| Home > Publications database > A Novel Liquid Purging Method for High-Resolution and Analytical Liquid Phase Transmission Electron Microscopy for Understanding Electrochemical Processes |
| Home > Publications database > A Novel Liquid Purging Method for High-Resolution and Analytical Liquid Phase Transmission Electron Microscopy for Understanding Electrochemical Processes |
| Poster (After Call) | FZJ-2025-00151 |
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2024
Abstract: Liquid phase transmission electron microscopy (LPTEM) has emerged as a powerful tool, presenting enormous potential for understanding the electrochemical processes behind electrolysis, batteries, and other technologies [1].However, obtaining high-resolution structural and chemical information during these electrochemical processes remains a challenge due to the issue of liquid thickness. While utilizing a monolithic MEMS based nanoreactor with integrated electrodes can be a potential solution, it too faces limitations from an electrochemical perspective. To ensure proper ion conduction to mirror processes occurring in macroscopic cells, LPTEM studies require a thicker liquid layer, which directly contradicts the need for high-resolution information. On the other hand, obtaining high-resolution information through post-mortem studies, by disassembling a typical two-chip nanoreactor, too is not a viable solution due to possible changes due to absence of the native liquid environment. Furthermore, ideally high-resolution information is required at different stages of in situ experiments. These necessitate the ability to dynamically control the liquid thickness. We recently developed a novel purging method that enables high-resolution and analytical electron microscopy studies within a liquid flow cell [2]. We anticipate that the development and application of this method will lead to the unraveling of detailed electrochemical mechanisms in electrolysis and batteries. This, in turn, will pave the way for improved efficiency and lifetime of these electrochemical conversion and storage devices, consequently accelerate the transition to a greener future
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