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Catalysts are essential in advancing electrocatalytic applications. To strategically manipulate the d-band center and stabilize valence states, rare earth elements have been successfully integrated with other elements—such as precious metals and transition metals—in catalyst systems. This incorporation of rare earth elements fine-tunes the adsorption strength of the reaction intermediates, leading to significant improvements in catalyst activity, stability, and selectivity. For further insights, see the detailed discussion in the article by Xia et al. on pages 205—218.