Facile and cost-effective NiO/MgO-SiO₂ composites for efficient oxygen evolution reaction and asymmetric supercapacitor systems.

ABSTRACT: Biomass waste from grapefruit peel extract was used for the preparation of MgO-SiO₂ composites in situ in order to develop effective electrocatalytic composites based on NiO/MgO-SiO₂. The MgO-SiO₂ composites were subsequently deposited with NiO using a modified hydrothermal method. The synthesized materials were analyzed to investigate their morphology, crystal structure, chemical composition, functional group, and optical band gap. The structural analysis allowed us to determine the orientation of the nanoparticles, the cubic phase of NiO and MgO, the significant loss of optical band gap, and the enriched functional groups on the surface of NiO/MgO-SiO₂ composites. The electrochemical properties were investigated in the presence of an alk

SUBMITTER: Ali G 

PROVIDER: S-EPMC11883754 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature