Breaking the symmetry of high-entropy alloy surfaces for compressively strain-tuned oxygen reduction reaction

at 0.95 V versus reversible hydrogen electrode (vs. RHE), demonstrating a competitive performance. Experimental and theoretical investigations unveil that the stress-released compressive strain lowers the d-band center of Pt sites in HEA NRs, resulting in favorable desorption of oxygenated intermediates and thus accelerated ORR kinetics.