A hexangular ring–core NiCo2O4 porous nanosheet/NiO nanoparticle composite as an advanced anode material for LIBs and catalyst for CO oxidation applications

Abstract

A porous hexangular ring–core NiCo₂O₄ nanosheet/NiO nanoparticle composite has been synthesized using a hydrothermal method followed by an annealing process in air. The as-obtained composite as an anode material exhibits a high initial discharge capacity of 1920.6 mA h g⁻¹ at a current density of 100 mA g⁻¹ and the capacity is retained at 1567.3 mA h g⁻¹ after 50 cycles. When it is utilized as a catalyst for CO oxidation, complete CO conversion is achieved at 115 °C and a catalytic life test demonstrates the good stability of the composite.