Researchers at Lawrence Berkeley National Laboratory have developed a new method to observe electrochemical reactions at the atomic level using a specially designed cell combined with electron microscopy. This technique has revealed significant insights into the behavior and degradation of copper catalysts used in CO2 reduction, potentially guiding the design of more efficient and durable catalyst systems.
Senior author Haimei Zheng, left, and first author Qiubo Zhang look at the results of measurements obtained using their new technology, which pairs with powerful microscopes at Berkeley Lab’s National Center for Electron Microscopy. Credit: Thor Swift/Berkeley Lab On the left, a schematic showing the different components of the polymer liquid cell that the team developed. On the right, a photograph of the PLC next to the holding device that supports the PLC and inserts it into the transmission electron microscope. Credit: Thor Swift/Berkeley Lab
“Previously, people relied on the initial surface structure to design the catalyst for both efficiency and stability. The discovery of the amorphous interphase challenges our previous understanding of solid-liquid interfaces, prompting a need to consider its effects when devising strategies,” said Zhang.
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