Efficient BiVO₄-Based Photoanode with Chemically Precipitated Hierarchical Cobalt Borate (Co-B_i) Oxygen Evolution Reaction Catalysts.

ABSTRACT: The integration of cobalt borate OER catalysts with electrodeposited BiVO₄-based photoanodes through a simple drop casting technique was shown to provide an improvement of the photoelectrochemical performance of electrodes under simulated solar light. Catalysts were obtained by chemical precipitation mediated by NaBH₄ at room temperature. Scanning electron microscopy (SEM) investigation of precipitates showed a hierarchical structure with globular features covered in nanometric thin sheets providing a large active area, whereas X-ray diffraction (XRD) and Raman spectroscopy highlighted their amorphous structure. The photoelectrochemical behavior of samples was investigated by linear scan voltammetry (LSV) and electrochemical impedance spectroscopy (EIS) techniques. Th

SUBMITTER: Dell'Oro R 

PROVIDER: S-EPMC10268265 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature