Controlled Fabrication of Hierarchically Structured MnO₂@NiCo-LDH Nanoarrays for Efficient Electrocatalytic Urea Oxidization.

ABSTRACT: Urea, a prevalent component found in wastewater, shows great promise as a substrate for energy-efficient hydrogen production by electrolysis. However, the slow kinetics of the anodic urea oxidation reaction (UOR) significantly hamper the overall reaction rate. This study presents the design and controlled fabrication of hierarchically structured nanomaterials as potential catalysts for UOR. The prepared MnO₂@NiCo-LDH hybrid catalyst demonstrates remarkable improvements in reaction kinetics, benefiting from synergistic enhancements in charge transfer and efficient mass transport facilitated by its unique hierarchical architecture. Notably, the catalyst exhibits an exceptionally low onset potential of 1.228 V and requires only 1.326 V to achieve an impressive current density of 10

SUBMITTER: Liu W 

PROVIDER: S-EPMC10421065 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature