Bifunctional MOF-on-MOF-Derived CuCo₂O₄ for Oxygen Evolution Reaction Electrocatalysis and Supercapacitor Electrodes.

ABSTRACT: The development of high-performance electrocatalysts for oxygen evolution reaction (OER) is still a challenge to produce green hydrogen. Thus, herein, a new bifunctional metal-organic frameworks (MOF)-derived CuCo₂O₄ is obtained, applied as OER electrocatalyst and electrode for supercapacitors. All physicochemical and morphological characterization indicates the formation of a pure spinel structure CuCo₂O₄ crystalline phase and coral reef-like morphology. X-ray photoelectron spectroscopy data showed major presence of Co³⁺ and Cu⁺ ions on the surface and high concentration of oxygen vacancies. OER electrocatalytic assays conducted in alkaline medium (1.0 M KOH) show a reduced overpotential (η) of 317 mV at 10 mA cm^-2

SUBMITTER: da Silva Hortencio J 

PROVIDER: S-EPMC12680583 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature