A self-reactivated PdCu catalyst for aldehyde electro-oxidation with anodic hydrogen production.

ABSTRACT: The low-potential aldehyde oxidation reaction can occur at low potential (~0 V_RHE) and release H₂ at the anode, enabling hydrogen production with less than one-tenth of the energy consumption required for water splitting. Nevertheless, the activity and stability of Cu catalysts remain inadequate due to the oxidative deactivation of Cu-based materials. Herein, we elucidate the deactivation and reactivation cycle of Cu electrocatalyst and develop a self-reactivating PdCu catalyst that exhibits significantly enhanced stability. Initially, in-situ Raman spectroscopy confirm the cycle involved in electrochemical oxidation and non-electrochemical reduction. Subsequently, in-situ Raman spectroscopy and X-ray absorption fine structure reveal that the Pd component accelerates

SUBMITTER: Yang M 

PROVIDER: S-EPMC11564531 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature