Durable acidic water oxidation ruthenium based electrocatalyst by fluorination induced symmetry breaking.

ABSTRACT: Ru-based materials exhibit high electrocatalytic activity for the acidic oxygen evolution reaction, but they are prone to transform into soluble RuO₄ species via traditional lattice oxygen mechanism at high oxidation potentials, resulting in rapid inactivation. Herein, density functional theory calculations predict that the F induced symmetry-breaking can alter the oxygen evolution reaction route of RuO₂ from the lattice oxygen mechanism route to the stable adsorption evolution mechanism pathway. Consequently, we fabricate an efficient F-RuO₂/FC electrocatalyst by substituting a portion of O in RuO₂ with F. Specifically, it can operate continuously for over 1440 h (2 months) at 100, 500 and 1000 mA cm^-2 when using F-RuO₂/FC

SUBMITTER: Jin M 

PROVIDER: S-EPMC12749938 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature