Alkali Metals Activated High Entropy Double Perovskites for Boosted Hydrogen Evolution Reaction.

ABSTRACT: An efficient and facile water dissociation process plays a crucial role in enhancing the activity of alkaline hydrogen evolution reaction (HER). Considering the intricate influence between interfacial water and intermediates in typical catalytic systems, meticulously engineered catalysts should be developed by modulating electron configurations and optimizing surface chemical bonds. Here, a high-entropy double perovskite (HEDP) electrocatalyst La₂(Co_1/6Ni_1/6Mg_1/6Zn_1/6Na_1/6Li_1/6)RuO₆, achieving a reduced overpotential of 40.7 mV at 10 mA cm^-2 and maintaining exemplary stability over 82 h in a 1 m KOH electrolyte is reported. Advanced spectral characterization and first-principles calculations

SUBMITTER: Sun N 

PROVIDER: S-EPMC11558161 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature