Coupling Ni Single Atomic Sites with Metallic Aggregates at Adjacent Geometry on Carbon Support for Efficient Hydrogen Peroxide Electrosynthesis.

ABSTRACT: Single atomic catalysts have shown great potential in efficiently electro-converting O₂ to H₂O₂ with high selectivity. However, the impact of coordination environment and introduction of extra metallic aggregates on catalytic performance still remains unclear. Herein, first a series of carbon-based catalysts with embedded coupling Ni single atomic sites and corresponding metallic nanoparticles at adjacent geometry is synthesized. Careful performance evaluation reveals Ni_SA/Ni_NP-NSCNT catalyst with precisely controlled active centers of synergetic adjacent Ni-N₄S single sites and crystalline Ni nanoparticles exhibits a high H₂O₂ selectivity over 92.7% within a wide potential range (maximum selectivity ca

SUBMITTER: Wang X 

PROVIDER: S-EPMC11220688 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature