Nanoscale high-entropy alloy for electrocatalysis

Nanostructure engineering of ruthenium-modified electrocatalysts for efficient electrocatalytic water splitting

“…Crystalline multicomponent alloys have attracted wide attention owing to their unique high-/medium-entropy properties. 157 The synergistic effects of dual-phase material in a new class of crystal–glass alloys are confirmed to have positive effects on good HER performance. Mn and Al are cheaper than the transition metal-based elements described above and have more unique economic advantages than alloys with metal Ru.…”

Optimization strategies of high-entropy alloys for electrocatalytic applications

“…Physical characterization is the key to exploring the physical and chemical properties of HEAs in electrocatalysis. 29 Zhang et al summarized several characterization methods for HEAs to characterize their morphology, structure, surface state changes, and strain characteristics as shown in Fig. 3a.…”

“…Secondly, the advantages of HEAs for electrocatalysis are introduced from both experimental and theoretical aspects, and how to design HEAs according to different reaction systems is analyzed. More importantly, on the basis of the previous literature, 28,29 we summarize several strategies for regulating HEAs to improve their catalytic activity through in-depth analysis, including element regulation, defect regulation and strain engineering. Finally, the challenges faced by high-entropy catalysts in electrocatalysis are proposed, and the prospects of their future development are discussed.…”

Ultradurable Pt-Based Catalysts for Oxygen Reduction Electrocatalysis

“…Due to the ability to continuously adjust the surface electronic structure of alloy catalysts, high-entropy alloys have attracted increasing attention in electrocatalysis. This can break through the barrier where the adsorption energy of traditional alloys towards oxygen-containing intermediates cannot approach the vertex of the volcanic curve [191,192]. In particular, the core effects, including high-entropy, lattice distortion, sluggish diffusion and cocktail effect, also endow the high-entropy alloys with high structural stability, thus becoming kind of ideal candidate catalysts for ultradurable electrocatalysis [193].…”