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@INPROCEEDINGS{Basak:1050787,
      author       = {Basak, Shibabrata and Chakraborty, Pritam and Poc,
                      Jean-Pierre and Jodat, Eva and Karl, André and Eichel,
                      Rüdiger-A.},
      title        = {{B}ridging the {N}anoscale {G}ap: {M}ultimodal {E}lectron
                      {M}icroscopyfor {A}dvancing {E}lectrolyzer {T}echnologies},
      reportid     = {FZJ-2026-00510},
      year         = {2025},
      abstract     = {The transition to a sustainable energy future is
                      inseparably linked to the development of efficient and
                      reliable hydrogen production technologies. Electrolysis,
                      encompassing both low-temperature (PEM/AEM) and
                      high-temperature (SOFC/SOEC) approaches, holds immense
                      promise. However, a significant hurdle remains: a
                      comprehensive understanding of the complex electrochemical
                      processes at the nanoscale and how that translates to
                      macro-scale performance and durability. This presentation
                      shows how advanced electron microscopy can address this
                      challenge.Overall our research aims to correlate fundamental
                      nanoscale mechanisms with device performance in both low-
                      and high-temperature electrolysis by developing and
                      implementing a comprehensive multimodal electron microscopy
                      strategy. We emphasize visualizing nanoscale dynamics using
                      in-situ transmission electron microscopy (TEM) and
                      correlating these observations with the microstructural
                      changes in lab or large-scale cells during long-term
                      operation via a multimodal approach. Specifically, the low-
                      and high-temperature electrolysis present distinct
                      microscopy challenges. Beam-sensitive AEM and PEM
                      electrolytes and catalysts necessitate low-dose TEM and
                      cryo-sample preparation. Maintaining critical hydration
                      states during imaging is crucial for accurate degradation
                      mechanism analysis. Furthermore, the limitations of
                      single-chamber MEMS-based in-situ TEM cells for gas/liquid
                      phase reactions require careful consideration of
                      electrochemical processes to maximize the information
                      gained. Finally, the limited field of view and thin sample
                      requirements of TEM necessitate careful consideration of
                      broader relevance.Thus, we combine laser scanning microscopy
                      (LSM) for large-scale context, (cryo) plasma FIB for precise
                      TEM sample preparation or obtaining high-resolution 3D
                      information to construct a comprehensive picture of the
                      material's structure and behavior. Then, employ well though
                      in-situ TEM investigation in (environmental) TEM to obtain
                      necessary nanoscale process information. This presentation
                      will showcase unique degradation processes observed in PEM
                      electrolysis and the nano-exsolution process and its
                      long-term stability in high-temperature electrolysis. These
                      nanoscale insights are crucial for the rational design and
                      optimization of next-generation electrolyzers, accelerating
                      the transition to a hydrogen-based economy.},
      month         = {Aug},
      date          = {2025-08-31},
      organization  = {Microscopy Conference 2025, Karlsruhe
                       (Germany), 31 Aug 2025 - 4 Sep 2025},
      subtyp        = {After Call},
      cin          = {IET-1},
      cid          = {I:(DE-Juel1)IET-1-20110218},
      pnm          = {1231 - Electrochemistry for Hydrogen (POF4-123) / HITEC -
                      Helmholtz Interdisciplinary Doctoral Training in Energy and
                      Climate Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF4-1231 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/1050787},
}