Ease of Electrochemical Arsenate Dissolution from FeAsO₄ Microparticles during Alkaline Oxygen Evolution Reaction.

ABSTRACT: Transition metal-based ABO₄-type materials have now been paid significant attention due to their excellent electrochemical activity. However, a detailed study to understand the active species and its electro-evolution pathway is not traditionally performed. Herein, FeAsO₄, a bimetallic ABO₄-type oxide, has been prepared solvothermally. In-depth microscopic and spectroscopic studies showed that the as-synthesized cocoon-like FeAsO₄ microparticles consist of several small individual nanocrystals with a mixture of monoclinic and triclinic phases. While depositing FeAsO₄ on three-dimensional nickel foam (NF), it can show oxygen evolution reaction (OER) in a moderate operating potential. During the electrochemical activation of the FeAsO

SUBMITTER: Adak MK 

PROVIDER: S-EPMC10401858 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature