Influence of Co²⁺, Cu²⁺, Ni²⁺, Zn²⁺, and Ga³⁺ on the iron-based trimetallic layered double hydroxides for water oxidation.

ABSTRACT: In this work, we synthesized five novel iron-based trimetallic layered double hydroxides (LDHs) by the urea-assisted co-precipitation method for the electrocatalytic water oxidation reaction (WOR). In particular, the synthesized electrocatalysts were labeled CoCuFe-LDH, ZnNiFe-LDH, ZnCoFe-LDH, ZnCuFe-LDH, and CoGaFe-LDH. The electrocatalysts were thoroughly characterized by means of Ultraviolet-visible spectroscopy (UV-Vis), N₂ adsorption/desorption, and X-ray photoelectron spectroscopy (XPS). We analyzed the changes in the electronic structures, changes in the surface area, and the oxygen vacancies, respectively. X-ray diffraction (XRD) and transmission electron microscopy (TEM) showed that the materials had the hydrotalcite-like structure typical of LDHs. Electrochemical resul

SUBMITTER: Yong JD 

PROVIDER: S-EPMC9174971 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature