A method for using ultraviolet–visible (UV–vis) spectroscopy — an affordable and widely available technique — to monitor redox activities during charge storage in electrochemical systems has been developed. Using this method, charge storage mechanisms can be determined and the electron transfer number quantified, as demonstrated for MXene electrodes in different electrolytes.
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This is a summary of: Zhang, D. et al. In situ monitoring redox processes in energy storage using UV–Vis spectroscopy. Nat. Energy https://doi.org/10.1038/s41560-023-01240-9 (2023).
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UV–vis spectroscopy for monitoring oxidation state changes during electrochemical energy storage. Nat Energy 8, 565–566 (2023). https://doi.org/10.1038/s41560-023-01258-z
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DOI: https://doi.org/10.1038/s41560-023-01258-z
