About this event
In this DENSsolutions Stream webinar, we welcome Dr. Christian Liebscher from the Max-Planck-Institut für Eisenforschung in Germany.
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Abstract
Nanostructured copper (Cu) is a promising heterogeneous electrocatalyst to convert carbon dioxide (CO₂) into hydrocarbon compounds. Although it has been demonstrated that the selectivity and stability of Cu catalysts strongly depends on the particle morphology and size, the role of their internal structure is less explored. In situ electrochemical liquid phase (ELP) microscopy provides an ideal platform to study the evolution of electrocatalysts under realistic reaction conditions.
In our upcoming Stream webinar, Dr. Christian Liebscher from the Max-Planck-Institut fur Eisenforschung will discuss how to integrate in situ ELP microscopy with 4D-STEM observations to investigate the dynamic formation and oxidation of nanostructured Cu. Noteably, these in situ experiments were performed using the DENSsolutions Stream system, which enables complete flow control, and does not require the removal of the liquid for further data acquisition.
Together, we will delve into how the application 4D-STEM, where a nanobeam electron diffraction pattern is obtained at each probe position, offers insights beyond the mere shape and morphology of the nanocatalyst. The application of 4D-STEM enabled Dr. Liebscher and his team to discern the nanocrystalline structure of the resulting Cu nanoparticles and investigate the formation of copper oxide (Cu₂O) during the reaction. Additionally, during this webinar, Dr. Liebscher will elaborate on strategies for analyzing the complex multidimensional datasets and discuss current limitations and opportunities associated with coupling in situ ELP microscopy with 4D-STEM.
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