Nickel-iron layered double hydroxide (NiFe LDH) are high performance catalysts for the oxygen evolution reaction (OER) which become unstable under potential in alkaline media. According to the preparation method, they can present different type of impurities at their surface. The cover picture depicts how the oxidizing potential during OER operation leads to the secondary phase dissolution and a faster degradation of the catalyst, hindering the evolution of oxygen. More details can be found in the Research Article by Axel Zuber, Michelle P. Browne, and co-workers (DOI: 10.1002/celc.202400151).
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Zuber et al. (2024) studied this question.
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