| 초록 |
The incorporation of functional nanoparticles within nanomaterials with unique architectures can improve interfacial surfaces, defects, and active sites, which are key factors for designing novel nanocatalysts. Nano metal-organic framework can be utilized to fabricate nanodots-confined nanohybrids for use in electrocatalytic processes. Herein, a controlled fabrication of gold nanodot assembly within cobalt sulfide nanoshell (dots-in-shell Au/CoxSy nanohybrids) is investigated. A cobalt-based zeolite imidazole framework is used as a versatile sacrificial template to yield dots-in-shell Au/CoxSy nanohybrids. Owing to the synergistic effect of the well-dispersed Au nanodots and the thin CoxSy nanoshell, the obtained dots-in-shell Au/CoxSy nanohybrids show enhanced performance for oxygen evolution reaction with low overpotential values at a current density of 10 mA cm−2 and a small Tafel slope. |
